Beck 11-439 Instruction Manual
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E L E C T R I C A C T U A T O R S F O R I N D U S T R I A L P R O C E S S C O N T R O L
NOTICE: This manual contains information
that will make installation simple, efficient
and trouble-free. Please read and understand
the appropriate sections in this manual before
attempting to install or operate your drive.
CONTENTS
Product Description ................................................................................................................................... 3
General Specifications ............................................................................................................................. 4
Outline Dimension Drawings .................................................................................................................... 6
Installation ................................................................................................................................................... 8
Signal Wiring ............................................................................................................................................ 9
Start-up .................................................................................................................................................. 10
Operation ................................................................................................................................................... 12
Digital Control Module (DCM) ................................................................................................................... 14
DCM Local Interface ............................................................................................................................ 15
Operation ............................................................................................................................................ 15
Calibration ........................................................................................................................................... 17
Switches .......................................................................................................................................... 18
Demand ........................................................................................................................................... 20
Position ............................................................................................................................................ 22
Direction Change ............................................................................................................................. 23
Troubleshooting .................................................................................................................................. 24
DCM HART® Interface .......................................................................................................................... 26
Communication ................................................................................................................................... 26
Configuration and Setup ..................................................................................................................... 36
Calibration ........................................................................................................................................... 40
Switches .......................................................................................................................................... 42
Position ............................................................................................................................................ 44
Feedback ......................................................................................................................................... 46
Demand ........................................................................................................................................... 47
Torque Measurement ....................................................................................................................... 48
Maintenance ....................................................................................................................................... 49
Alarm Messages .............................................................................................................................. 49
Troubleshooting ............................................................................................................................... 52
DCM Serial Interface ............................................................................................................................ 56
Setup .................................................................................................................................................. 56
Commands ......................................................................................................................................... 57
Command Error Codes ....................................................................................................................... 62
Maintenance ............................................................................................................................................... 63
Routine ................................................................................................................................................... 63
Component Replacement ...................................................................................................................... 64
Appendix .................................................................................................................................................... 68
Spare Parts ............................................................................................................................................ 68
Components ........................................................................................................................................... 69
Index ........................................................................................................................................................... 70
Services ...................................................................................................................................................... 71
POSITION SENSING AND
FEEDBACK DEVICE
TRAVEL LIMIT
AND AUXILIARY
SWITCHES
DIGITAL CONTROL
MODULE (DCM)
WIRING TERMINAL BLOCK
GEAR TRAIN AND
MOTOR HOUSINGS
LOCATION OF MAJOR COMPONENTS
BECK LINKAGE KITS
Beck pipe linkage kits are available for complet-
ing the mechanical connection from the drive crank
arm to the load. Through the use of a standardized
selection, the linkage can be ordered even if the
exact length is not determined until the drive and
driven device are installed.
All Beck 11-439 drives are furnished with a
crank arm and rod end (see pages 6 and 7 for
dimensions). All rod ends furnished by Beck incor-
porate bearings to accommodate some lateral mis-
alignment. Once the connection is made, linkage
kits can be adjusted ±1 1/2” without removal of the
crank arm or load lever, making final mechanical
calibration simple.
See page 10 for linkage requirements.
PRODUCT DESCRIPTION
GENERAL SPECIFICATIONS—ALL MODELS
Operating Conditions
-40° to 85°C (-40° to 185°F)
0 to 100% relative humidity
Communication Interface
HART protocol, local pushbutton/LED panel and RS-232 Serial
commands.
Demand input Signal Options
4–20 mA (1–5 V dc input is possible with the removal of the "R-in"
(DCM)
resistor located on the DCM board (see diagram on page 67).
Adjustability for Split Range
0%: 0.1 V to 4 V dc
Operation
100%: 0% + 1 V min. to 5 V max.
Step Size
0.15% typical (configurable).
Linearity
±1% of span, max. independent error
Hysteresis
0.25% of span at any point.
Demand input Signal
Linear: Drive output shaft moves proportionally to the input signal.
Characterization
Square: Drive output shaft moves proportionally to the square of the
input signal.
Position Feedback Signal
4–20 mA
for Remote Indication
Isolation
Demand input and position Feedback signals are isolated from ground
and the ac power line. Signal buffering provides 24 V dc isolation
between the Demand and Feedback signals.
Action on Loss of Power
Stays in place.
Action on Loss of Input
Stays in place or drives to any preset position (configurable).
Signal (Power On)
Stall Protection
If the motor tries to run in one direction for more than 300 seconds
(Optional)
(configurable from 30 to 300 seconds), the DCM will shut off power to
the motor (feature can be enabled/disabled).
Drive
Power
120 V ac, single-phase, 60 Hz (standard), 50 Hz (optional)
208, 240, 380, 415, 480 & 575 V ac, 50 or 60 Hz (optional)
Allowable Tolerance: +10%
- 15%
Voltage
Model
Power (W)
120
208
240
380
415
480
575
11-430
400
3.10
1.79
1.55
0.98
0.89
0.78
0.65
Max. Current (Amps) by Supply Voltage (V ac)
GENERAL SPECIFICATIONS—ALL MODELS (cont’d)
Overtorque Protection
The DCM-2 shuts off power to the motor if the measured output torque
(Optional)
of the drive exceeds 150% (adjustable from 70% to 150%) of the drive
rating (feature can be enabled/disabled).
Alarm Annunciation
120 V, 80 mA max. available at terminal E (not available on drives
configured for 240V operation).
Temperature Indication
Measures the internal temperature of the drive and triggers an alarm
when the temperature exceeds the rating range.
Over-travel Limit Switches
Two SPDT (CW and CCW) provide over-travel protection.
Auxiliary Switches
Up to four 6 A, 120 V ac switches available.
Switches are labeled S1 to S4 and are cam-operated, field-adjustable.
Unless otherwise specified, auxiliary switches are factory set:
S1 and S4 are set to operate just before reaching the CCW travel limit.
S2 and S3 are set to operate just before reaching the CW travel limit.
Handswitch
Permits local electrical operation, independent of controller signal.
Standard on all units.
Handwheel
Provides manual operation without electrical power.
Motor
120 V ac, single-phase, no-burnout, non-coasting motor has instant
magnetic braking. Requires no contacts or moving parts.
Gear Train
High-efficiency, precision-cut, heat-treated alloy steel and ductile iron
spur gears. Interchangeable gear modules permit field change of
timing.
Mechanical Stops
Prevent overtravel during automatic or manual operation.
Enclosures
11-409 Drive
Type 4X, precision-machined, aluminum alloy castings painted with
corrosion-resistant polyurethane paint, provide a rugged, dust-tight,
weatherproof enclosure.
Gear Reduction Unit
Precision-machined, aluminum alloy casting painted with corrosion-
resistant polyurethane paint, provides a rugged, dust-tight,
weatherproof enclosure.
OUTLINE DIMENSION DRAWINGS
RECOMMENDED BOLT TORQUES
BECK MODEL 11-439
ORIENTATION A
Front View
Side View
SIZE
TORQUE
GEAR REDUCTION UNIT
(in.)
(lb-ft)
Crank Arm Bolts (4)
3/4-16
420
Rod End Nut
3/4-16
200
Crank Pin Bolts (3) - Std. Arm
3/4-16
420
Crank Pin Bolts (3) - Alt. Arm
3/4-16
300
11-400 DRIVE
Cover Bolts
5/16-18
10
Motor Bolts
3/8-16
16
Gear Module Bolts
5/16-18
10
Adaptor Plate to Gear
1/2-13
45
Reduction Unit Bolts (4)
OUTPUT
MAXIMUM
NET
SHAFT
OVERHUNG
TORQUE TIMING
WT
DIA.
LOAD
(lb-ft)
(sec.)
(lb.)
(in.)
(lb.)
5,200
108
180
790
3 15/16
20,000
(Crank Arm p/n
14-8022-42)
or
2,900
72
120
15,000
(Crank Arm p/n
14-8022-44)
18 15/16
10 1/8
8 13/16
14 3/8
3 1/2
3 1/2
2 63/64
28 13/32
19 1/32
5
12 7/8
11 9/16
11 7/16
10 1/8
10 13/16
6 13/64
6 1/6
1 19/32
Gear
Module
Assembly
90° Elbow
1" N.P.T.
Conduit
Power
Connection
Allow 10"
min. for
Access
5 3/8
7
Cover, Position
Sensing Devices
4 21/32
2 3/16
2 5/8 ±1/8
9 3/16
1 9/16
7 1/8
7 19/32
10 1/4
1 1/2
10 1/64
4 3/4
17 13/32
24 39/64
Allow 4" For Removal
1/2" N.P.T. Conduit
Signal Connection
29 1/16
Allow 9" For Removal
11 7/8 ±3/8
ROD END NUT
AND
CRANK PIN
1 1/2-12 UNF x
2 5/8 DEEP
5 3/8
[136]
CRANK ARM BOLTS (4)
CRANK PIN BOLTS (3)
ROD END NUT
AND
CRANK PIN
9”–15”
[228–381]
19
[482]
5 3/8
[136]
1 1/2-12 UNF x
2 5/8 DEEP
All Dimensions are in inches
and are subject to change.
ORIENTATION B
Front View
Side View
AVAILABLE CRANK ARMS (WITH ROD ENDS)
STANDARD CRANK ARM
(p/n 14-8022-42)
ALTERNATE CRANK ARM
(p/n 14-8022-44)
Thread Size
Dim. "C"
Dim. "D"
Dim. "W"
Angle
1 1/2–12
1.312"
1.500"
2.000"
6.5°
ROD END DETAIL
10 1/8
8 13/16
14 3/8
3 1/2
3 1/2
7
5 3/8
Gear
Module
Assy.
7/8
11 9/16
10 1/8
28 13/32
2 63/64
18 15/16
11 7/16
12 7/8
21 5/8 Max.
Allow 9" for Removal
19 1/32
Allow 10" Min.
For Access
Cover,
Terminal Block
External Wiring
1/2" N.P.T. Conduit
Signal Connection
24 1/8
21 3/4
24 39/64
Allow 4" For Removal
17 13/32
4 3/4
10 1/64
10 1/4
7 1/8
1/2
1 9/16
9 3/16
2 5/8 ±1/8
2 3/16
11 7/8 ±3/8
1" N.P.T. Conduit
Power Connection
4 21/32
Installation and service instructions are for use
by qualified personnel only. To avoid injury and
electric shock, do not perform any servicing
other than that contained in this manual.
STORAGE INFORMATION
The 11-439 should be stored in its shipping
crate in a clean, dry area.
If it is necessary to store the drive outdoors for
a long period of time, it should be stored above
ground and covered with a waterproof cover. Do
not stack 11-439 crates on top of one another.
Stored drives should be checked periodically to
make sure no condensation has formed in the
electronic and terminal compartments. Damage
due to moisture while in storage is not covered by
warranty.
UNPACKING
The drive is shipped in a slatted wooden crate.
The crate is braced internally at the top and sides
of the drive. To unpack, remove the top of the
crate first. Then remove the sides of the slatted
crate, carefully removing the support braces. After
unpacking, the skid may be used to transport the
drive to the installation site.
MOUNTING INSTRUCTIONS
The Beck 11-439 can be installed in any conve-
nient orientation because the gear train does not
require an oil bath. Refer to the outline dimension
drawings for physical dimensions and required
clearances.
The 11-439 must be bolted firmly to a mounting
surface which will not yield to the stresses cre-
ated from operating the device. Use 1” diameter
grade 5 bolts and torque to 480 Ib-ft. A flat, rigid,
vibration-free surface will generally prolong the life
of the drive’s components. Place shims under the
feet of the drive to correct for any unevenness in
the mounting surface before the mounting bolts
are tightened.
The output shaft of the drive should be paral-
lel to the driven shaft, and the linkage should be
perpendicular to the plane of the two shafts. Small
misalignments can be tolerated if a rod end fitting
is used on the driven lever similar to that provided
on the Beck crank arm.
ORIENTATION OPTIONS
The choice of the two available orientation
options depends on the installation and the need
to access the wiring and electrical adjustments of
the 11-409 drive. Normally the orientation option is
selected at the time of order and factory-assembled
to that specification. The orientation option can
be changed. Caution: Consult the factory before
attempting to change the drive orientation.
Orientation Option A (Page 6)
The 11-439, orientation option A, is bolted to
a removable wooden pedestal with four 3/4” hex
head bolts. These bolts are not to be used for
mounting the drive to its final mounting platform.
The pedestal provides a mounting base for the
drive and also protects the 11-400 control motor.
Do not remove the drive from the pedestal or the
protective cover from the motor until the drive is
ready to be placed on its final mounting platform.
The pedestal is attached to the wooden shipping
skid with metal banding.
Orientation Option B (Page 7)
The 11-439, orientation option B, is bolted directly
to the wooden shipping skid. These bolts are not to
be used for mounting the drive to its final mounting
platform. Do not remove the drive from the skid or
the protective cover from the motor until the drive is
ready to be placed on its final mounting platform.
MODEL 11-439 CONTROL DRIVE
Adaptor Plate
Pilot Shoulder
Assembly Bolts (4)
11-400 Body Only
Lifting Points (3)
Gear
Reduction
Unit
Eye Bolts for Lifting Assembly
Mounting Holes (4) for
Mounting Assembly
Mounting Feet (2)
NOTE: All Beck drives are shipped from the
factory ready for installation; no electrical ad-
justments are required before placing them in
operation. Each drive is set up and calibrated
to the customer’s specifications that were writ-
ten into the equipment order.
Two N.P.T. conduit connections are provided
for power and signal wiring to the drive. The 1/2"
conduit is provided for signal wiring connections,
and the 1" conduit is provided for power and aux-
iliary switch connections. A sealant must be used
on threaded conduit connections to keep moisture
out. Conduits should be routed from below the
drive so that condensation and other contaminants
entering the conduit cannot enter the drive.
A large, clearly labeled terminal block on the
top of the drive is enclosed in a separate, gasketed
metal enclosure. Terminals will accommodate up
to 12 AWG wiring. See page 3 for location of the
terminal block.
CAUTION
Always close covers immediately after instal-
lation or service to prevent moisture or other
foreign matter from entering the drive.
Refer to the wiring diagram furnished with your
Beck drive for proper AC power and signal con-
nections. It is advisable to provide normal short
circuit protection on the AC power line. A copy of
the wiring diagram is shipped with each drive and
is fastened to the inside of the terminal block cover.
If there is no wiring diagram available, you may
obtain a copy from Beck by providing the serial
number of your drive.
For maximum safety, the Beck drive body
should be grounded. Use the grounding terminal
in the wiring compartment of the drive.
INSTALLATION—SIGNAL WIRING
Each Beck drive is configured to match the
control requirements of your system specified at
the time of order. Each drive has a specific wir-
ing diagram attached to the inside of the wiring
terminal cover. Typical wiring connections are
described below.
A drive can be ordered with up to four optional
auxiliary switches. Wiring connections for these
are described on pages 18 & 42.
To prevent Handswitch initiated motion,
remove the jumper between terminals A and C.
CAUTION: AC power to the drive must be
turned off before removing the jumper.
Typical Wiring Connections
Power and Demand Input Connections
Customer must supply 120 V ac to power the drive
and control circuitry. 120 V ac line connects to terminal
C and neutral to terminal B. Input signal wires connect
to terminals AA (+) and BB (–).
In most applications, the best control will
result when the linkage is adjusted so that the
full 100° angular travel of the Beck drive shaft
is used, even though the driven shaft may travel
less than 100°.
The general requirements for a good linkage
are:
1. It must be rigid enough to carry the link thrust
without bending or deforming.
2. It must have a built-in means of adjustment so
that the length of the connecting link can be
changed a small amount.
3. Rod end bearings, similar to those furnished
on the Beck crank arm, should be used at
both ends of the connecting link. This type of
device permits small angular misalignments
and helps prevent binding of the linkage.
4. The radius of the Beck crank arm must be cal-
culated so that it will move the damper lever
through the correct arc as it travels from 0° to
100°.
5. The drive and driven shafts must be parallel
and the linkage should be in a plane perpen-
dicular to the shafts.
The following procedure is recommended to
couple the linkage between the Beck drive and
the driven shaft:
1. Position the driven shaft to it's fully closed
position.
2. Set the driven shaft lever to its predetermined
starting angle in relation to the driven shaft
and drive shaft centerline.
3. Remove the rod end from the Beck crank
arm. Thread the rod end fully onto the con-
necting link.
4. Adjust the connecting link to the predeter-
mined length.
5. Connect the connecting link to the driven le-
ver at the predetermined radius.
6. Set the crank pin (see illustration on page 7)
on the Beck crank arm to the predetermined
radius (6.5–10.5 inches or 9–15 inches,
depending on the crank arm); this is done
by loosening the crank pin bolts and sliding
the crank pin to the predetermined position.
Tighten the crank pin bolts to the torque rec-
ommended on page 6.
7. Loosen the crank arm bolts. CAUTION: The
crank arm will pop free—approximate weight
is 125 lbs.
8. Position the drive’s output shaft to correspond
with the driven shaft's fully closed position.
9. Swing the crank arm into position and as-
semble the rod end to the crank arm crank
pin. Tighten the rod end nut to the torque
recommended on page 6.
10. Tighten the crank arm bolts evenly, in a
cross-pattern, to the torque recommended on
page 6.
11. Lubricate the rod end bearings with LGI #1
EP grease, Mobil grease #28 or equivalent.
12. Carefully move the drive’s output shaft to
correspond with the driven shaft's fully open
position. Check that no binding occurs be-
tween the linkage, crank arm, driven shaft
lever, and surrounding obstructions. Also, ob-
serve that the driven shaft rotates the proper
amount. Ensure that the drive reaches the
proper limit and shuts off. If binding in the
linkage occurs due to too much travel of the
driven lever, reduce the crank arm radius
on the Beck drive rather than adjusting the
connecting link length. Return to step 5 and
repeat adjustments.
If necessary, the linkage length may be adjusted
by altering the thread engagement in the couplings.
The couplings have right- and left-hand threads,
so it is not necessary to disconnect the ends to
make a length adjustment. The stud threads must
be engaged 1.2 diameters deep into the rod ends.
Make adjustments by altering thread engagement
in couplings only. Be careful not to expose more
than 7” of stud between rod end and coupling.
Once again, check operation to determine that
no binding occurs between the linkage and crank
arm or driven shaft lever. Surrounding objects must
not interfere.
Do not change limit switch settings to obtain
desired driven shaft lever travel. This shortens the
travel of the feedback device and reduces the con-
trol resolution, repeatability, accuracy of the drive,
and available torque.
For an input control signal change, do not ad-
just the linkage. Refer to the applicable Calibration
section of this manual.
Link-Assist™
The Beck Link-Assist™ computer program
opti mizes the linkage configuration for your load’s
torque characteristics to help you select the min-
imum drive size for your application. Contact
your Beck Sales Engineer to take advantage of
Beck’s Link-Assist™ program.
Linkage Kits Available
Standard Beck linkage kits are made to
accom modate a wide variation in linkage lengths
without requiring modification of end fittings. This
adapt ability makes it possible to order the es-
sential linkage end connections even though the
exact linkage length may not be known until the
drive is mounted in place.
Each linkage kit includes the essential pipe
linkage end connections and all necessary hard-
ware except for pipe and crank arm rod end. To
simplify installation of the pipe link, the kit ac-
cepts N.P.T. right-hand threads on both ends of
the pipe. Left-hand threads are internal to the
linkage kit assembly, making final length adjust-
ments quick and easy.
To order Pipe Linkage Kits, first obtain the
approximate overall linkage length “A”. Select
the kit part number from the table below. For
lengths beyond those listed in the table, contact
your Beck Sales Engineer. Additional Linkage
information can be found in the Beck Drive Spec-
ification Guide (DSG).
11-439 PIPE LINKAGE KITS
1Does not include customer supplied pipe.
2Use when the angle between the linkage and crank arm is less than 25°.
*NOTE: To calculate length of
pipe required, subtract Length
of 2 Linkage Ends (shown in
the table below) from Linkage
Length (“A”).
START-UP INSTRUCTIONS
After the drive is mounted and its wiring con-
nections are made, it is ready to be tested for
proper operation.
NOTE: All Beck drives are shipped from the
factory ready for installation; no electrical ad-
justments are required before placing them in
operation. Each drive is set up and calibrated
to the customer’s specifications that were writ-
ten into the equipment order.
Turn on the power supply. Operate the drive
with the Handswitch and run it through its full
stroke, both directions. Observe that the driven
device travels through its desired stroke. If satis-
factory, set Handswitch to the “AUTO” position.
Turn on the controller and operate the drive by
varying the control signal. Check that the damper
strokes in the proper direction for a change in con-
trol signal. If it does not, first check for proper
wiring connections and verify control signal at the
drive. If the wiring is correct, then change the
direction of output shaft rotation (see applicable
instructions on page 23, 41 or 58).
The 11-439 consists of a Beck 11-409 Control
Drive assembled to a 3:1 gear reduction unit. The
11-439 has cast aluminum compartments for each
of the five main components: The control motor,
wiring terminal board, drive train, digital control
module, and control end. Gasketed covers and
sealed shafts make this product ideally suited to
outdoor and high-humidity environments.
The gear reduction unit is cast aluminum and
provides a rugged, dust-tight, weatherproof en-
closure.
Heavy mechanical stops built into the housing
are designed to prevent accidental over-travel
damage during manual cycling, and ensure that
proper orientation is maintained between the out-
put shaft and the feedback system.
CONTROL MOTOR
The Beck control motor is a synchronous in-
ductor motor which operates at a constant speed
of 72 or 120 RPM in synchronism with the line fre-
quency. Motors are able to reach full speed within
50 milliseconds and stop within 25 milliseconds;
actual times will vary with load. Beck motors have
bearings with added, double grease seals and re-
quire no maintenance for the life of the motor.
GEAR TRAIN
The 11-439 gear train is a four-stage reduction,
spur gear drive constructed with only heat-treated
alloy steel and ductile iron gears for durability and
long life.
The drive train consists of the control motor
and Handwheel, reduction gears, main gears, and
splined output shaft. The main gear / output shaft
and third stage gears are built into the drive hous-
ing. The second and first stage gears are part of
the field-interchangeable gear module. Different
combinations of gear modules and drive motors
determine the drive’s output torque and timing.
The drive train in the gear reduction unit is a
single-stage reduction, spur gear drive consisting
of a ductile iron gear and a heat-treated alloy steel
pinion. An internal spline in the pinion engages
with the external spline on the output shaft of
the 11-439. In this way, the output torque of the
11-439 is increased by a factor of 3.
The output shaft is limited by mechanical stops
to 108° of rotation. Mechanical transmission of the
output shaft position to the control end is provided
by a right angle gear set driven directly by the
11-439 output shaft.
SELF-LOCKING
MECHANISM (SLM)
An integral part of every control motor is the
self-locking mechanism. This mechanical device
couples the motor to the gear train and transmits
full motor torque when rotated in either direc-
tion. When the motor is de-energized, the SLM
instantaneously locks and holds the output shaft
in position.
HANDWHEEL
Every Beck control drive is furnished with a
Handwheel to permit manual operation of the
damper without electrical power. Its solid con-
struction design includes no spokes or projections,
and turns at a safe, slow speed. The Handwheel
is located at the rear of the control motor housing.
The Handwheel is coupled directly to the motor
shaft and rotates when the motor runs. Manual op-
eration of the Handwheel (with electric Handswitch
in “STOP” position) turns the motor and the rest of
the drive train without incorporating a clutch.
HANDSWITCH
A local electric Handswitch is provided on Beck
drives to permit operation at the damper, indepen-
dent of the controller. As a safety feature, the
Handswitch is designed so that the controller can
operate the drive only when it is in the “AUTO”
position. The sequence of the Handswitch is:
“AUTO”, “STOP”, “CW”, “STOP”, “CCW”.
In the “AUTO” position, two contacts are closed
and the DCM completes the control circuit.
In the “CW” or “CCW” positions, contacts are
closed to operate the drive independently of the
controller.
In the “STOP” position, all contacts remain
open.
To prevent Handswitch initiated motion, re-
move the jumper between terminals A and C.
CAUTION: AC power to the drive must be
turned off before removing the jumper.
SWITCHES
Two over-travel limit switches and up to four
optional auxiliary switches are provided on Beck
drives. Switch cams are clamped onto the con-
trol shaft which rotates in relation to the output
shaft. Cam position is field-adjustable. Switches
are rated 6 A, 120 V ac. All auxiliary switch con-
nections are made on the terminal block.
LOSS OF DEMAND INPUT
SIGNAL (L.O.S.)
When the Demand input signal drops to
approximately –5%, the DCM considers the
Demand input signal to be invalid. DCMs are
typically configured to stop the drive during
L.O.S. conditions, but may be configured by the
factory or by using the HART or Serial interface
to run the drive to a predetermined position.
Under the L.O.S. condition, the “STAT” and “DE-
MAND” LEDs will light. When the input signal
is corrected, the drive will automatically resume
normal operation. The value for LOS activation
is configurable using the HART (see page 39) or
Serial interface (see page 59). Alarm indication
is available at terminal E.
POSITION:
CONTACTLESS POSITION
SENSOR (CPS)
The CPS provides the DCM with a continuous
feedback signal proportional to the position of the
drive’s output shaft.
The position sensing function of the CPS is
provided by a ferrite magnetic sensing element.
An electronic circuit translates the signal from the
ferrite magnetic sensor into a position signal used
by the DCM to control the drive. The typical output
voltage of the CPS ranges from 1.0 V at the CCW
end of travel, to 5.0 V at the CW end of travel. A
4–20 mA position feedback signal is available for
remote position indication (see page 9). If the CPS
Position signal to the DCM is out of the calibrated
range limits, the "STAT" and "POSITION" LEDs will
light. Alarm indication is available at terminal E.
TORQUE PROTECTION (FOR
DRIVES EQUIPPED WITH THIS
OPTION)
DCM-2s are equipped with a torque sensing
module that will light the “STAT” and “TRQ/
THRUST” LEDs in the event excessive torque
is detected. This alarm is normally set to
activate when torque exceeds 105% of the
drive rating. Torques above 150% of the drive
rating will cause the DCM-2 to stop trying to run
in the direction of the high torque. When the
over torque condition is corrected, the drive will
automatically resume normal operation. The
torque sensing module also provides a number of
torque related features using the HART interface
(see page 48). Torque alarm may be enabled or
disabled using the HART (see page 48) or Serial
interface (see page 71). Torque alarm levels may
be adjusted using the HART or Serial interfaces.
Alarm indication is available at terminal E.
STALL PROTECTION AND
ANNUNCIATION
If the drive output shaft cannot reach a desired
position within approximately 300 seconds, the
DCM shuts off power to the motor and the “STAT”
and “STALL” LEDs will light. The stall condition
timing is factory configurable (or configurable using
the HART or Serial interface) from 300 seconds to
as low as 30 seconds and is initially set according
to the specification at time of order.
A sensed stall condition is cleared by either
reversing the Demand input signal from the control-
ler (such that the drive tries to run in the direction
opposite the blocked direction), performing a "Reset
Stall" or "Board Reset" using the HART interface
(see page 34), or by switching the drive power off
and on. Alarm indication is available at terminal E.
TEMPERATURE
DCMs are equipped with a temperature sens-
ing circuit. The “STAT” and “TEMP °F” LEDs
will light when the drive’s ambient temperature
exceeds the rating of the drive. Specific tem-
perature readings are available using the HART
(see page 34) or Serial (see page 61) interface.
Alarm indication is available at terminal E.
FEEDBACK SIGNAL
The feedback sourcing module provides a
4–20 mA analog output signal that represents the
drive output shaft position in terms of 0–100% of
full rotational travel (configurable via the HART
(see page 46) or Serial (see page 60) interface).
This signal can be remotely monitored or used
by a controller or indicator. The “STAT” and “FB
OPEN” LEDs will light if the function is enabled
and there is no current in the loop. The Feedback
signal can be factory configured as disabled, or
disabled using the HART (see page 38) or Serial
(see page 60) interface. Alarm indication is avail-
able at terminal E.
STOP/LIMIT INDICATION
The “STAT” and “STOP/LIMIT” LEDs will
light if the Handswitch is in the “STOP” position.
These LEDs will also light if the drive is at a limit
and is not in balance. Alarm indication is avail-
able at terminal E.
INPUT: DIGITAL CONTROL
MODULE (DCM)
Beck modulating drives are equipped with a
precision, digital control module (DCM) designed to
receive conventional 4–20 mA or 1–5 V dc control
signals directly.
The DCM modulates the drive output shaft in
response to an analog Demand input signal and is
designed to operate continuously in temperatures
up to 185°F.
The DCM provides intelligent calibration, easy
drive setup changes, and diagnostic information.
A Local interface provides quick pushbutton
setup and diagnostics without the need for a hand-
held or remote device (see page 15). A HART
communications interface allows remote access
of all features and information (see page 28). A
Serial interface also allows for drive configuration
changes, drive information reporting and to assist
in troubleshooting (see page 56).
The DCM permits two or more Beck drives to
be operated by a single signal source. See pages
21 and 48 for details on split range operation.
A square function is available to position the
drive’s output shaft proportionally to the square
of the input signal. This function is factory
configurable (specify at time of order) or may be
configured using the HART interface (see page
38) or Serial interface (see page 59).
DIGITAL CONTROL MODULE (DCM)
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
ACKNOWLEDGE
TEMP F
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
DCM LOCAL INTERFACE Operation
OVERVIEW
The DCM customer interface panel (pictured
below) allows the user to easily calibrate the drive
and troubleshoot conditions. The following infor-
mation provides an overview of the DCM customer
interface panel features.
NOTE: Beck drives are shipped from the fac-
tory set up and calibrated to customer spec-
ifications placed at the time of order and are
ready for installation.
Overview LEDs
The four LEDs, as highlighted below, indicate
the present state of the drive.
FWD
This LED is lit when the drive is receiving a
Demand signal greater than its position.
REV
This LED is lit when the drive is receiving a
Demand signal smaller than its position.
STAT
This LED is lit when additional status is available.
For details regarding possible conditions, see
“Status Indication LEDs” on page 16.
PWR
This LED is lit when power is applied to the
drive. This LED pulses from bright to dim
indicating the DCM is fully operational.
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
ACKNOWLEDGE
TEMP F
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
ACKNOWLEDGE
TEMP F
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
The five pushbuttons (pictured below) on the
DCM customer interface panel are used for cali-
bration. When pressing a pushbutton, pressure
should be maintained until the “ACKNOWLEDGE”
LED lights; this confirms receipt of the pushbut-
ton command. See the Calibration section, be-
ginning on page 17, for further explanation of the
calibration procedures. Pushbutton functions are
as follows:
CALIBRATE
A safety feature, this button must be
pressed and held while pressing the
pushbuttons described below to set the
Position and Demand signal limits.
CAUTION
Pressing the following buttons may change
calibration and cause the drive to reposition.
SET POS 100%
Press to set the desired 100% position for
drive movement (this will correspond to a
100% Demand signal).
SET POS 0%
Press to set the desired 0% position for
drive movement (this will correspond to a
0% Demand signal).
SET DEM 100%
Press to set the Demand input signal that
corresponds to 100% Demand.
SET DEM 0%
Press to set the Demand input signal that
corresponds to 0% Demand.
Status Indication LEDs
When the “STAT” LED is lit, the applicable status
indication LED(s) (pictured below) will light to reveal
the condition(s) as described below. An alarm is
also available at terminal E. When the condition is
corrected, the status will automatically reset. Each
status LED is described below, with a more detailed
explanation of the function provided on page 13.
DEMAND
Loss of the Demand input signal.
POSITION
The CPS Position signal to the DCM is out of the
calibrated range limits. The lower limit is –5% and
the upper limit is 105% of the calibrated range.
This LED may also indicate a CPS or internal
wiring failure.
TRQ/THRUST
This LED indicates that excessive torque
is present (over 105% of the drive rating).
This LED is functional only when the drive is
equipped with optional torque sensing.
STALL
The drive is in a stall condition and stall protection
has been activated.
TEMP °F.
Drive’s internal temperature is outside of rating.
FB OPEN
External position Feedback signal is enabled,
but not wired to an external load or the wiring
has failed between the drive and the monitoring
device.
STOP/LIMIT
Handswitch is in “STOP” position or the drive is
at a limit and is not in balance.
Status
Indication
LEDs
Pushbutton
Controls
DCM LOCAL INTERFACE Operation
ACKNOWLEDGE
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
POSITION
DEMAND
TQ/THRST
STALL
FB OPEN
STOP/LIMIT
TEMP F
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
TEMP F
R
FWD
REV
STAT
PWR
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
ACKNOWLEDGE
All Beck drives are shipped completely cali-
brated to the customer’s specifications that were
written into the equipment order and are ready to
be installed. If the need arises to change the drive
calibration, first confirm that the drive is installed as
specified and operating properly before proceeding
with the change.
Position reference and demand calibration
are performed using the DCM customer interface
panel, but may also be configured using the HART
or Serial interface. Calibration of over-travel limit
and auxiliary switches must be performed using
the procedure beginning on page 18.
CALIBRATION PRIORITY
Model 11-439 drives are equipped with fixed,
non-adjustable, built-in mechanical stops. All
output shaft rotation must occur within these stops,
which are approximately 108° apart.
The over-travel limit switches are used to limit
the electrical control range of the drive. These
switches are cam operated and are set slightly
wider apart than the drive’s intended full range
of electronic operation (typically 100°). The limit
switches are positioned to provide an electrical
overtravel protection (typically 101°).
If the drive is short-stroked—i.e., the full travel
rotation from 0–100% is reduced to less than the
standard 100° rotation (see page 22)—it may be
desirable to reset the over-travel limit switches
(see page 18). If the limit switches are not reset,
Handswitch operation of the drive (CW, CCW)
will still result in the original full range of travel.
It is best to calibrate the drive and then set the
limit switches when short-stroking the drive. The
switches should be set just outside the calibrated
range to avoid tripping the switch at the 0% and
100% positions.
The auxiliary switches are also cam operated,
but have no affect on drive and DCM operation.
Therefore, the auxiliary switches can be adjusted
at any time without affecting performance or
calibration.
DCM LOCAL INTERFACE Calibration
NOTE: Your Beck drive was shipped from the
factory ready for installation; no electri cal
adjustments are required before placing it in
operation. Each drive is set up and calibrated
to the specifications that were written into
the equipment order.
Under normal operating conditions there is no
need to recalibrate the control drive. However,
if the application requirements change or are
different than specified on the equipment order,
the drive should be recalibrated according to the
following procedures.
SWITCH ADJUSTMENTS
Control drives are shipped with over-travel
limit switches factory-set for 101° of travel
unless otherwise specified at time of order.
Limit switches must be set inside the range of
the built-in, non-adjustable mechanical stops
to prevent stalling of the motor. Limit switches
can be reset to limit travel of the output shaft to
any angle down to a minimum of 60°. Auxiliary
switches are set as shown in the figure at left
unless otherwise specified at time of order.
NOTE: The over-travel limit switches are the
switches closest to the drive body. To adjust
the over-travel limit switches, it is necessary
to remove the control end cover.
Switches are operated by cams which are
clamped onto the control shaft. Setting a switch
involves loosening the cam, moving the output
shaft to the desired position, and positioning the
cam so that it just operates the switch at that point.
In the following procedure, the use of a continuity
meter is recommended to determine when the
switch opens or closes. If such a meter is not
available, it is possible to hear the switch click as
the contacts open and close.
CAUTION
Do not attach the meter or attempt to move the
switch cams until the drive is discon nected
from the line voltage and auxiliary switches are
disconnected from external power sources.
Setting Over-travel Limit
Switches CW and CCW
This procedure should be used if the factory
over-travel limit switch settings must be changed
in the field. It is advisable to operate the drive fully
in each direction, using the electric Handswitch to
check switch settings before attempting to change
them. Follow these instructions if they require
adjustment:
1. Remove the control end cover and terminal
block cover (1/2" bolt heads).
2. Use the electric Handswitch to drive the control
shaft so that the CW switch cam screw is
accessible. Using a 7/64" hex wrench, loosen
the screw so that the cam is just snug on the
shaft (see illustration below).
3. Move the output shaft clockwise to the desired
CW limit.
Standard Over-travel Limit and
Auxiliary Switch Settings
DCM LOCAL INTERFACE Calibration - Switches
4. Turn the Handswitch to the “STOP” position.
5. Disconnect power from the drive.
6. Turn the Handswitch to the "AUTO" position.
7. Connect the continuity meter across terminals
B and M. Rotate the cam until the meter shows
no continuity (switch contacts open, switch
clicks).
8. Tighten the cam locking screw to 5 Ib-in
torque.
9. Disconnect meter and turn the Handswitch to
the "STOP" position.
10. Reconnect drive power.
11. Rotate the drive’s output shaft in the CCW
direction away from the CW travel limit. Note
the direction of rotation of the lobe of the cam.
The correct cam lobe motion is away from the
switch lever with the switch lever on the lower
part of the cam. If not correct, return to step 2
and reset the cam to the proper orientation.
12. Rotate the output shaft again to the desired CW
travel limit. If the stopping point is reached, the
switch is properly set.
13. Repeat instructions for setting CCW travel
limit switch (noting that referenced directions
of rotation should be opposite of those used for
CW switch setting). Connect continuity meter
across terminals B and N.
14. Replace covers and tighten cover bolts to
10 Ib-ft torque.
15. Rotate index to correspond with output shaft
rotation.
Setting Auxiliary Switches
Standard switch settings for drives with 2 or 4
auxiliary switches are shown on the diagram on
page 18. The heavy line indicates a closed circuit.
Follow these instructions to change the operating
point of auxiliary switches:
NOTE: In the following procedure, it is as-
sumed that switch settings are to be adjusted
so that contacts are open when the desired
position is achieved. If they are to be adjusted
to close, it may be necessary to reverse the
operating mode of the switch by moving the
wire lead to the other terminal on the switch
itself. Be sure to disconnect power from the
switch terminals first.
1. Remove the control end cover and the terminal
block cover (1/2" bolt heads).
2. Use the electric Handswitch to drive the shaft
so that the switch cam is accessible. Using a
7/64" hex wrench, loosen the screw so that the
cam is just snug on the shaft.
3. Move the output shaft to the desired position.
4. Turn the Handswitch to the “STOP” position.
5. Disconnect power from the drive and switch
terminals.
6. Connect the continuity meter across the appro-
priate terminals. See the diagram on page 18
or the drive wiring diagram. Rotate the cam to
operate the switch.
7. Tighten the cam locking screw to 5 Ib-in
torque.
8. Disconnect the meter and reconnect power.
9. Move the drive’s output shaft in the desired
direction to verify that the cam lobe moves
away from the switch lever. If not correct, re-
turn to step 2 and reset the cam to the proper
orientation.
10. Replace covers and tighten cover bolts to
10 Ib-ft torque.
Loosening Switch Cam
DCM boards are designed to accept a 4–20 mA
(or 1–5 V dc) analog demand signal. Narrower
spans within this range can also be accommodated
for split range operation (see page 21). The input
comes calibrated from the factory for the full range
unless otherwise specified by the customer. It
is not necessary to calibrate the Demand input
when the drive is installed; however, if desired,
it can be easily accomplished using the DCM
pushbutton controls (or HART or Serial interface)
and a signal source. Following this procedure is
only necessary to compensate for slight differences
between the signal source calibration and the DCM
factory calibration, or if reduced range calibration
is desired for special operating scenarios such as
split ranging.
Procedure
1. Remove the DCM cover (1/2” bolt heads).
2. Ensure the Handswitch is in the “STOP”
position. This will prevent the drive from
repositioning during this procedure.
3. Apply the desired 0% Demand input signal to
the drive (e.g., 4 mA for 4–20 mA input). If the
drive has not been wired, the Demand input
signal is connected at terminals AA (+) and BB
(–) as shown in the diagram on page 9.
4. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET DEM 0%” pushbutton until the
“ACKNOWLEDGE” LED is lit.*
5. Apply the desired 100% Demand input signal
to the drive (e.g., 20 mA for 4–20 mA input).
6. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET DEM 100%” pushbutton until
the “ACKNOWLEDGE” LED is lit.*
7. Turn the Handswitch to the “AUTO” position.
NOTE: The drive may reposition.
8. Run the drive through its full operating range to
ensure proper response to the Demand input
signal.
9. Replace the compartment covers and tighten
the cover bolts to 10 lb-ft torque.
* If the “ACKNOWLEDGE” LED does not light, but
the “DEMAND” LED does light, the signal is out
of acceptable range and was not accepted by the
DCM. This is typically caused by trying to set 0%
and 100% values too closely together (i.e., less
than 4 mA difference).
DCM LOCAL INTERFACE Calibration - Demand
Split Range Operation
In applications where it is necessary (or pref-
erable) to have more than one final control element
controlling a single process, two to four Beck drives
may be set up to respond to different portions of
the Demand signal from the control system. The
most common arrangement involves two drives;
each operating on different halves of the input
signal range. For example, if a 4–20 mA control
signal is used, the first drive would move 100% of
its stroke on a signal range of 4–12 mA, while the
second operates on the 12–20 mA range.
To set up a split range operation, follow the
steps listed below (see page 16 for location of
pushbutton controls).
NOTE: Ensure that the L.O.S. (Loss of Demand
input signal) settings of the drives are appro-
priate for the configuration. See page 13 for
information on changing L.O.S. settings.
1. Remove the DCM cover (1/2” bolt heads).
2. Ensure the Handswitch is in the “STOP” po-
sition. This will prevent the drive from reposi-
tioning during this procedure.
3. Apply the desired 0% Demand input signal to
the drive. (Following the example above, the
minimum signal for the first drive would be 4
mA. The second drive’s minimum signal would
be 12 mA). If the drive has not been wired, the
Demand input signal is connected at terminals
AA (+) and BB (–) as shown in the diagram on
page 9.
4. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET DEM 0%” pushbutton until
the “ACKNOWLEDGE” LED is lit.*
5. Apply the desired 100% Demand input signal
to the drive. (Following the example above,
the maximum signal for the first drive would be
12 mA. The second drive’s maximum signal
would be 20 mA).
6. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET DEM 100%” pushbutton until
the “ACKNOWLEDGE” LED is lit.*
Demand
Square Function
Input
Actual Output
Signal
Standard Output
Position
(mA)
(% of Span)
(% of Span)
4.0
0
0
5.6
10
1
12.0
50
25
15.2
70
49
18.4
90
81
20.0
100
100
7. Repeat this process for the remaining drives
to be split-ranged.
8. Run the drive through its full operating range to
ensure proper response to the Demand input
signal.
9. Replace the DCM cover. Tighten the cover
bolts to 10 lb-ft torque.
* If the “ACKNOWLEDGE” LED does not light, but
the “DEMAND” LED does light, the signal is out
of acceptable range and was not accepted by
the DCM. This is typically caused by trying to
set 0% and 100% values too close together (i.e.,
less than 4 mA difference).
Square Function
Beck drives can be set up to position the output
shaft proportionally to the square of the Demand
input signal (see table below). This function is
factory configurable, or may be configured using
the HART or Serial interface.
In order to correctly position the drive output
shaft in response to the Demand input signal, the
DCM receives a position signal from the drive’s po-
sition sensor and compares this actual position to
the Demand input. This process requires that the
DCM interprets the position signal appropriately
for the full range of desired travel. This procedure
will calibrate the DCM to accept the position signal
and interpret the appropriate 0–100% range. Note
that all drives come factory calibrated and there is
no need to recalibrate unless changes in operation
are desired.
It is also possible to calibrate the position signal
using the HART or Serial interface.
Short-stroke Operation
(Reducing Full Rotation)
Typically, it is best to use the full 100° rotation
of the drive in response to the 0–100% Demand
input signal—this allows full flexibility in arranging
the drive’s torque to be distributed for the best me-
chanical advantage relative to the driven load.
In certain applications, as a last resort, it may
become necessary to reduce the full rotation of
the drive. In these applications, the DCM can be
calibrated to accommodate reduced stroke. The
recommended minimum full stroke rotation is 60°
(although it is advisable to make the range as
close to 100° as possible for the highest position
resolution attainable with the CPS and to avoid
reduction in torque. If the driven element stroke
rotation is less than 100° (where applicable), a
linkage can be used to allow the driven element
to move the correct rotation while still allowing the
drive to rotate 100°).
To reduce the full rotation of the drive ("short-
stroke"), use the customer interface panel and
follow the Position calibration procedure on this
page. "Short-stroking" can also be accomplished
by using the HART (see page 44) or Serial (see
page 60) interface.
The illustration below represents a Beck drive
with linkage requiring an 80° full stroke rotation.
(Please note that the crank arm may be adjusted
to any start angle orientation).
DCM LOCAL INTERFACE Calibration - Position
Procedure
1. Remove the DCM cover (1/2” bolt heads).
2. Position the drive at the desired minimum po-
sition (i.e., the desired physical position of the
drive’s output shaft corresponding to the 0%
Demand input signal).
3. Ensure the Handswitch is in the “STOP” po-
sition. This will prevent the drive from reposi-
tioning during this procedure.
4. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET POS 0%” pushbutton until the
“ACKNOWLEDGE” LED is lit.*
5. Position the drive at the desired maximum po-
sition (i.e., the desired physical position of the
drive’s output shaft corresponding to the 100%
Demand input signal).
6. Ensure the Handswitch is in the “STOP” po-
sition. This will prevent the drive from reposi-
tioning during this procedure.
7. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET POS 100%” pushbutton until
the “ACKNOWLEDGE” LED is lit.*
8. Optional: Adjust the over-travel limit switches
(see page 18) just outside the 0% and 100%
limits.
9. Verify that the drive’s 0% and 100% positions
are correct. If not, repeat this procedure.
10. Replace the compartment cover and tighten
the cover bolts to 10 lb-ft torque.
* If the “ACKNOWLEDGE” LED does not light, but
the “POSITION” LED does light, the signal is out
of acceptable range and was not accepted by the
DCM.
Crank arm may be adjusted to any start angle orien-
tation. The orientation shown above has been randomly
selected for the purpose of this example.
NOTE:
DIRECTION OF OUTPUT SHAFT
ROTATION (CW vs. CCW)
Direction of output shaft rotation is determined
by observing the end of the output shaft (see illus-
trations below). Direction of rotation is defined as
the direction of output shaft rotation produced by
an increasing Demand signal. Unless otherwise
specified at the time of order, the output shaft is
factory set to rotate clockwise in response to an
increasing signal.
Changing the direction of output shaft rotation
is easily accomplished using the DCM customer
interface panel (see page 16 for location of push-
button controls) or the HART or Serial interface.
Follow the steps below.
1. Remove the DCM cover (1/2” bolt heads).
2. Position the drive at the present 0% position.
3. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET POS 100%” pushbutton until
the “ACKNOWLEDGE” LED is lit.*
—OR—
2. Position the drive at the present 100% po-
sition.
3. Press and hold the “CALIBRATE” pushbutton
on the DCM customer interface panel, then
press the “SET POS 0%” pushbutton until the
“ACKNOWLEDGE” LED is lit.*
4. Ensure the drive operates as desired.
5. Replace the DCM cover and tighten the cover
bolts to 10 lb-ft torque.
* If the “ACKNOWLEDGE” LED does not light, but
the “POSITION” LED does light, the signal is out
of acceptable range and was not accepted by the
DCM.
NOTE: When either of the above procedures is
performed, both the 0% and 100% positions are
automatically set.
DCM LOCAL INTERFACE Calibration - Direction Change
CLOCKWISE
COUNTERCLOCKWISE
DCM LOCAL INTERFACE Troubleshooting
START
Is there a jumper
from terminal A
to terminal C?
Does drive work
with Handswitch?
Does drive
work properly
CW?
Does drive
work properly
CCW?
Does output shaft
move with Hand-
switch in “STOP”?
Does motor
appear to
energize?
Does drive run
randomly and/or
erratically?
Is the R/C
network correct?
Is there 0 volts
across fuse “F1”
of the DCM?
Is the DCM
"PWR" LED lit?
Is the “STAT” LED
on the DCM lit?
Is AC voltage at
terminals B & C
between 102 &
132 V ac?
Replace the fuse,
see diagram on
p. 67 for location
Connect
proper
power
Install
jumper
Replace
the
DCM
Check
drive
calibration
Go back
to
start
Check for correct
R/C network,
see p. 68
Check SLM for
wear; rebuild or re-
place as necessary
Replace
faulty
components
Check the voltage
across test points
TP2 & TP3 (R11)
Check the voltage
across test points
TP1 & TP4
Is the signal out-
side the expected
calibration range by
>5% of span?
Is the signal
greater than the
LOS threshold?
Is the “DEMAND”
LED still on?
Is the “POSITION”
LED still on?
Replace
the
DCM
Apply
correct demand
signal
Recalibrate
drive,
see p. 22
Replace
the
DCM
Consult
Factory
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
NO
NO
Is the torque sensing
cable connected to the
DCM?
Is the
“TRQ/THRUST” LED
still on?
Is the
“TRQ/THRUST” LED
still on?
Is the
“TRQ/THRUST” LED
still on?
Is the
“TRQ/THRUST” LED
lit?
Is the
“POSITION” LED
lit?
Is the
“DEMAND” LED
lit?
Remove load
from crank
arm
Replace
the
DCM
Connect
the
cable
Correct the
over-torque
condition
NO
YES
YES
YES
Is the “TEMP °F”
LED lit?
Is the “STALL”
LED lit?
Is the “TEMP °F”
LED still lit?
Is binding or an
obstruction
present?
Clear
obstruction
Move Handswitch
to CW/CCW per
direction drive does
not move
Check SLM for damage;
rebuild or replace
as necessary.
Check linkage and
driven element
Replace
Handswitch,
see p. 66
Is the “FB OPEN”
LED lit?
Does the voltage
across terminals
B–U/B–V = line
voltage?
Is green/red wire
connected to NC
switch contact?
Is the “STOP/LIMIT”
LED lit?
Does voltage from
CW/CCW switch
green/red to term.
B = line voltage?
Does Handwheel
turn freely without
repositioning drive?
Does drive respond
correctly and is
“STALL” LED out?
Does drive respond
correctly and is
“STALL” LED out?
Is binding or
an obstruction
present?
Place Handswitch in
“STOP” - check
linkage and driven
element
Clear
obstruction
Place Handswitch
in “AUTO” -- modulate
control signal
both ways
Replace
limit switch,
see p. 65
Connect
wire
properly
Apply correct
loop
resistance
Replace the
DCM
Replace the
DCM
Confirm
proper operation
of drive
Replace
the
DCM
Replace
the
DCM
Confirm
proper operation
of drive
Consult
Factory
Consult
Factory
Consult
Factory
Consult
Factory
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Is a feedback loop
of 800 ohms or less
connected to the
terminal board?
Is the “FB OPEN”
LED still on?
Is the Handswitch
in “AUTO”?
Is the “STAT”
LED still on?
Is the “STAT”
LED still on?
Restore ambient
temperature to
drive’s rated range
Cycle drive
power
off and on
Place drive
in “AUTO”
Check limit switch
wiring & setting,
see p. 18
Note: Choose
the side of the slash
corresponding with the
direction of travel in which
the drive is not working;
i.e., CW/CCW or
green/red
DCM HART® INTERFACE Communication
* THIS VALUE CAN BE EDITED
** INDICATES AN ACTION RATHER THAN THE VIEWING OR EDITING
OF A PARAMETER
THIS IS THE MENU DISPLAYED BY THE HART COMMUNICATOR
AT POWER UP IF COMMUNICATION IS ESTABLISHED
THIS AND OTHER OFFLINE MENUS ARE COMMON TO ALL
HART COMMUNICATOR APPLICATIONS - MANY SUBMENUS EXIST
(1)
(2)
1
BLOCK REFERENCE NUMBERS APPEAR AT THE
UPPER RIGHT CORNER OF EACH BLOCK.
Online (1)
1 Functions
2 Position
45.4%
3 Demand
45.4%
4 Loop(Dem)
11.29 mA
5 Trq/Thrust
Disabled
6 Temp
73 degF
7 Feedback
11.30 mA
2
Functions
1 Setup Checklist
2 Device Information
3 Configuration
4 Statistics
5 Manual Operation
6 Diagnostics
7 Calibration Trim
3A
Setup Checklist
1 Drive S/N*
2 Drive Dir*
CW Incr
3 Feedback*
Enabled
4 CPS Zero%*
1.000 v
5 PositionUnit*
deg
6 MaxTravel*
100 deg
7 Travel*
100 deg
8 DemRngLwr*
4.00 mA
9 DemRngUpr*
20.00 mA
Dem Curve*
Linear
•
•
•
Alarm Mask
0xffffffff
4B
General Setup
1 Drive Dir*
CW Incr
2 MaxTravel*
100 deg
3 Travel*
100 deg
4 StepSize*
0.100%
5 Stall Time*
300 S
6 StallProt*
Enabled
7 LimitSwitch*
Accept
8 PositionUnit*
deg
9 Temperature Unit*
degF
4C
PositionSensrSetup
1 Set Pos 0%**
2 Set Pos 100%**
3 PresCPS V
2.816 v
4 CPS Zero%*
1.000 v
5 CPS Span
4.000 v
6 CPS RngLwr
1.000 v
7 CPS RngUpr
5.000 v
8 Pos S/N*
454
9 Snsr Dir
CW Incr
4D
Demand Setup
1 DemRngLwr *
4.00 mA
2 DemRngUpr *
20.00 mA
3 Dem Curve*
Linear
4 Dem Curve Spcl
5 LOS Mode*
Stay
6 LOS Pos*
50.00 %
7 DemLimLwr*
3.20 mA
8 DemLimUpr
22.00 mA
4E
Feedback Setup
1 FB RngLwr*
4.00 mA
2 FB RngUpr*
20.00 mA
3 Feedback*
Enabled
4 FB Curve*
Linear
4F
Torque Setup
1 Trq/Thrust*
Enabled
2 Ovt Prot*
Enabled
3 ShutDwnTrq*
150
4 Trq Null*
163 TK
5 Trq Const*
279 TK
4G
Op Mode
Follow*
Hold*
RunCW*
RunCCW*
Stay
Stop*
4H
Status
1 LED Status
2 Operating Status
3 Switch Status
4 Local Cntrl Status
5 Line Freq
6 CW Inhibitors
7 CCW Inhibitors
4I
4J
CW Torque
1 Segment 1
0 %
2 Segment 2
12 %
•
•
•
Segment 10
66 %
4K
CCW Torque
1 Segment 1
5 %
2 Segment 2
6 %
•
•
•
Segment 10
62 %
4L
Alarm Setup
1 AlarmPol*
Drops Out
2 Alarm Mask*
4M
RealTimeClock
1 RTC Day*
8
2 RTC Month*
3
3 RTC Year*
2010
4 Hour (24)*
4
5 Minute*
7
4A
Review (3)
3B
Device Information
1 Tag*
BECK2006
2 Descriptor*
3 Message*
4 Model#
11-439
5 Drive S/N*
6 Instld*
23/05/2006
7 Setup*
23/05/2006
8 Calbrtd*
28/05/2006
9 Review
Poll addr*
0
3C
3D
Statistics
1 Starts
485213
2 Reversals
242606
3 Stalls
0
4 OverTorques
14
5 Pk Torque
127%
6 TotRunTm
53268 S
7 High Temp
155 degF
8 Low Temp
23 degF
3E
3F
Diagnostics
1 Status
2 Tests
3 CW Torque
4 CCW Torque
5 Alarm Setup
6 RealTimeClock
3G
Calibration Trim
1 PresCPS V*
2.816 v
2 Loop(Dem)*
11.29 mA
3 Feedback*
11.29 mA
4 Trq/Thrust*
Disabled
5A
Dem Curve Spcl
1 DemNode1X
0 %
2 DemNode1Y
0 %
3 DemNode2X
5 %
4 DemNode2Y
5 %
•
•
•
DemNode21X
100 %
DemNode21Y
100 %
5B
LED Status
Status
OFF
Reverse
OFF
Forward
OFF
Demand
OFF
Position
OFF
Trq/Thrust
OFF
Stall
OFF
Temperature
OFF
FB Open
OFF
Limit
OFF
Acknowledge
OFF
5C
Operating Status
Dem <> Limits
OFF
Pos <> Limits
OFF
Temp <> Limits
OFF
Torq <> Limits
OFF
Over Torq Stop
OFF
Stalled
OFF
Feedback Open
OFF
Switch Block
OFF
5D
Switch Status
LV Lim CCW
OFF
LV Lim CW
OFF
OvrRd CCW
OFF
OvrRd CW
OFF
OvrRd Stop
OFF
HndSw CCW
OFF
HndSw CW
OFF
HndSw AUTO
OFF
5E
Local Cntrl Status
Calibrate
OFF
Set Pos 100%
OFF
Set Pos 0%
OFF
Set Dem 100%
OFF
Set Dem 0%
OFF
5F
CW Inhibitors
Balance
ON
Supervisory
OFF
Stall
OFF
OverTrq/Thr
OFF
Switch Block
OFF
Bad Pos Sig
OFF
Bad Dem Sig
OFF
Local Cal
OFF
5G
CCW Inhibitors
Balance
ON
Supervisory
OFF
Stall
OFF
OverTrq/Thr
OFF
Switch Block
OFF
Bad Pos Sig
OFF
Bad Dem Sig
OFF
Local Cal
OFF
5H
Alarm Mask
DemandLOS
ON
Trq/Thrust High
ON
Stall
ON
Trq/Thrust Stop
ON
Stop/Limit
ON
FeedbackLOS
ON
Temperature
ON
PositionLOS
ON
RTC Fail
ON
Torq/Thrust/MeasF
ON
PositionA/D Erro
ON
DemandMeasFail
ON
Reserved 1
ON
PositionLOS
ON
TemperatureMeasF
ON
MemoryFail
ON
InvalButtonPress
ON
DemandTooHigh
ON
DemUnderHART/FF
ON
DemUnderPAT Ctl
ON
(3) PROVIDES AN EXTENDED LIST OF DRIVE PARAMETERS
Tests
1 FB Out Test**
2 Board Self-Test**
3 Identify Device**
4 Board Reset**
Configuration
1 General Setup
2 PositionSensrSetup
3 Demand Setup
4 Feedback Setup
5 Torque Setup
6 Restore to Factory**
7 Use Default Setup**
Manual Operation
1 Op Mode*
Follow
2 Demand*
45.3%
3 Reset Stall**
Figure 1
BECK-MK2 HART COMMUNICATOR MENUS FOR THE DCM-2
275/375 HANDHELD COMMUNICATOR WIRING CONNECTIONS
I
O
1
2
3
4
5
7
6
9
0
8
.
_
A B C
D E F
F1
F2
F3
F4
G H I
J K L
M N O
P Q R
S T U
V W X
Y Z /
# % &
< >
* : +
HART Communicator
HART
FIELD COMMUNICATIONS PROTOCOL
CONTROLLER DEMAND
OUTPUT TO DRIVE
TERMINATION
FIELD JUNCTION BOX
OR
MARSHALLING CABINET
DEMAND SIGNAL
TO DRIVE WIRING
(TERMINAL AA& BB)
ACCEPTABLE
COMMUNICATOR
CONNECTION
POINTS
POLARITY
NOT
IMPORTANT
CONTROL
ROOM
FIELD
*
A 250 ohm load resistor
may be required for
proper HART communication
when the DCM has
been modified for
1–5 V Demand signal
operation.
*
AA BB CC DD EE
AA BB CC DD EE
DCM HART® INTERFACE Communication
The DCM board is the control center of the
drive. Drive configuration and calibration are
accessed and set through the DCM board. Using
the HART interface requires a HART® compatible
communicator. Typically, a universal model 275/375
HART® communicator is used, but any device,
computer or controller capable of communicating
with HART® devices and supporting the Beck DCM
device description can be used. This instruction
supports drives built after 12/1/06 equipped
with a DCM-2 (p/n 22-5012-59). The DCM-2 is
designed to interface using a new universal
device description (BECK-MK2) but the firmware
can be set to closely emulate older revisions
thus allowing a HART communicator to interface
with the new DCM-2 using an earlier revision
device description. This is an emergency
feature for when HART communications are
necessary, but the user does not have a new DD.
To access all DCM-2 features and ensure that
all engineering units are correctly displayed,
the user must load the BECK-MK2 device
description to the communicator. See page
69 for the serial command required to set the
firmware “HART type”. Please contact the
factory for instructions regarding setting the
HART type using a handheld communicator.
HART® INTERFACE
Figure 1, page 26, displays the interface menu
tree for communicating with a DCM-2 using the
BECK-MK2 Device Description. This menu tree
summarizes possible setup options, features and
available information.
HART® COMMUNICATORS FOR
BECK-MK2
The BECK-MK2 Device Description requires a
HART® Communicator that is fully HART 5 capable
and has the ability to import Device Description
Language Files (DDL) that are certified by the
HART® Communications Foundation.
USING THE HART®
COMMUNICATOR
The HART® Communicator leads should be
connected in parallel with the analog Demand
signal wiring (see Figure on page 27). This allows
the communicator to simultaneously communicate
over the analog input wires. This does not disturb
the analog command signal, or disrupt the DCM
functions. However, any program changes to the
DCM will momentarily suspend the operation of
the board (maintains last state) while the change is
implemented. Typically, this is only for a second or
two.
With the communicator connected in parallel
anywhere across the analog Demand wires, it is
ready to communicate. Turn on the communicator
and wait for communications to be established.
Once communicating, the “Online” display (Figure
1, menu block #1) will appear in the communicator
window. If the drive is multidropped with other
devices on a single HART® network, the first
display screen will list all devices and require a
selection before the “Online” display is shown.
The “Online” display provides online information
about the present drive operating conditions.
Entering any of the menus shown in Figure 1 is
accomplished by following the display and using the
communicator’s arrow keys. If the communicator
is unable to communicate with the DCM, it will
display the message, “No Device Found”. If
this occurs, check to make sure the leads are
securely connected to the Demand wiring and
retry. If communications still do not occur, the
communicator polling setup may be improperly
set. Check the “utility” menu and make sure
communications polling is set to “always poll”.
A communicator keypad and display is shown
on page 27. There are four sections: 1) the
liquid crystal message display, 2) four function
keys beneath the LCD display, 3) six navigational
keys in the center section, 4) alphanumeric entry
keys at the bottom. For a complete description
of the communicator, please see the HART®
Communicator manual that is shipped with the
communicator.
The alphanumeric keys are used to type in
entries. Whenever a selected menu or method
requires a value or description to be entered,
this key pad is used. Since each key represents
four different characters, three shift keys are
provided at the bottom of the pad. A particular
alphanumeric character is selected by pushing the
shift key then pushing the alphanumeric key.
(See Figure 1, Page 26)
Online Menu
(Block 1)
When communications are established with
the communicator, the Online menu is displayed.
This is the gateway to all the other menus and it
also provides current information about the drive.
Numbered items 2 through 7 provide live, dynamic
values of the drive’s output position in percent,
the Demand signal to the drive in percent, the
Demand signal in milliamps, the torque output of
the drive in percent, the drive temperature, and
the external position feedback signal in milliamps.
Select the first menu item, “Functions”, to gain
access to the Functions menu. Backing out of
the Online menu (using the left arrow key) results
in selection of the Offline menu.
Functions Menu
(Block 2)
From the Functions menu, any of the DCM
functional menus can be selected and accessed.
There are seven functional areas: Setup
Checklist, Device Information, Configuration,
Statistics, Manual Operation, Diagnostics, and
Calibration Trim.
The Setup Checklist (Block 3A) is a menu
that allows the user to setup the most important
items necessary for basic drive operation. After
completing the setup checklist, further setup can
be accomplished using the configuration menu.
The other six functional areas and menus are
described in more detail as follows.
Device Information Menu
(Block 3B)
The Device Information menu is strictly an
informational page. By entering this menu, a
selection of useful information can be viewed
and/or edited. There are a total of ten information
entries:
1. Tag - This 8 character entry can be used as
a unique label that correlates to a field device
label.
2. Descriptor - This entry is a 16 digit field
that can be used to provide any description
desired.
3. Message - This entry is a 32 digit field that can
be used to provide any message desired.
4. Model - This entry displays the model number
of the drive in which the DCM board is
installed. It normally is set at the factory if the
board is installed in a drive. The user can edit
the field if desired.
5. Drive S/N - This entry displays the serial
number of the drive in which the DCM board
is installed. It normally is set at the factory if
the board is shipped in a drive. If the DCM is
shipped as a spare or replacement part, the
“Drive S/N” field will be blank. The user can
edit the field if desired.
6. Installed - This is a date entry that is normally
used to indicate the date that the drive or
DCM board was installed. The date format is
mm/dd/yyyy and it can be edited.
7. Setup - This is a date entry that is normally
used to indicate the date that the DCM/drive
setup was performed. Although this entry
is viewed and can be edited in the “Device
Information” menu, the user is prompted at the
end of performing a “Setup” to enter a date.
Entering the date at the prompt automatically
updates the date displayed. The date format
is mm/dd/yyyy, and it can be edited.
8. Calibrated - This is a date entry that is
normally used to indicate the date that the
DCM/drive was last calibrated. Although
this entry is viewed and can be edited in
the “Device Information” menu, the user
is prompted at the end of performing any
“Calibration” method to enter a date. Entering
the date at the prompt, automatically updates
the date displayed here. The date format is
mm/dd/yyyy, and it can be fully edited.
9. Review - Scrolls through all device information
items, as well as all the other DCM settings,
without accessing each item individually. This
is an excellent tool for quickly determining
how a particular drive is setup. To edit
individual entries, the user must exit "Review"
and proceed to the appropriate menu and
item.
10. Poll Address - This entry can be edited;
however, it is normally set to 0. A polling
address from 1 to 15 can be entered if the
drive resides on a common HART® network
with other HART® devices.
DCM HART® INTERFACE Communication
Configuration Menu
(Block 3C)
The Configuration menu serves as the
gateway to all of the drive operating setup
parameters. The user can select any of five
different setup submenus that can be used
to configure the drive based on the physical
layout and the desired operation. The five setup
submenus are described below. In addition
to these five setup menus, there is a "Restore
to Factory" selection which resets the drive
configuration to its as-shipped settings. There is
also a "User Default Setup" setting which resets
the drive configuration to the settings typical of
the applicable drive model type.
General Setup Submenu
(Block 4B)
This menu sets drive operating parameters.
The nine parameter entries are as follows:
1. Drive dir - Defines the rotation of the drive
output shaft, given an increasing Demand
signal, looking into the output shaft.
Options available are clockwise (CW) or
counterclockwise (CCW).
When the drive direction parameter is
changed, the DCM automatically reverses
the analog position feedback signal such that
it is 4 mA at the 0% input signal position and
20 mA at the 100% position. No recalibration
of the CPS is required. This parameter is
normally set to CW on an increasing Demand
signal unless the user specified CCW prior to
shipment of the drive.
2. MaxTravel - The maximum available travel
distance of the output shaft in degrees.
This value is entered manually, and must
correspond to the actuator design.
3. Travel - The number of degrees of output
shaft travel for 100% span. Edit this value
to use a span shorter than the allowable
"MaxTravel".
4. StepSize - The typical change in Demand
signal that can occur before the output shaft
will reposition (expressed in percent of span).
5. Stall time - The DCM provides stall protection
to the entire drive by shutting off power to
the motor and providing a HART® alarm.
This entry configures the stall time required
to trigger the stall protection. At the factory,
stall time is normally set to 300 seconds, but
can be edited and set for any value between
30 and 300 seconds. This value should be
longer than the timing for full drive travel.
6. StallProt - This entry is set as either “Enabled”
or “Disabled". It is used to remove motor
power if "Stall time" is reached.
7. LimitSwitch - This entry is set as either
"Accept" or "Alert" and is used to define
whether contacting a limit switch outside of
the normal travel range (0% to 100%) will
cause an error condition.
8. PositionUnit - Sets the numeric unit of
measure for the output shaft position in
degrees ("deg").
9. Temperature Unit - The unit of measure
for temperature. May be set for Fahrenheit
("degF") or Celsius ("degC").
PositionSensrSetup Submenu
(Block 4C)
This menu is where all position sensor
and external position feedback signal setup is
performed. The eight parameter entries are as
follows:
1. Set Pos 0% - Selecting this parameter sets
the present position of the drive to the
minimum travel position. Equivalent to
pushing the SET POS 100% pushbutton.
2. Set Pos 100% - Selecting this item sets the
present position of the drive to the maximum
travel position. Equivalent to pushing the
SET POS 100% pushbutton.
3. PresCPS V - Displays the present value of
the internal Position Sensor voltage, which
may also be measured at TP4(+) and TP1(–)
on the DCM board. May be edited in the
Calibration Trim menu for trimming the
Position Sensor A/D converter.
4. CPS Zero% - Displays the CPS voltage at
the zero percent output shaft position. May
be edited to define the CPS voltage at the
lowest operating point of travel.
5. CPS Span - Displays the CPS voltage span
for the maximum allowable output shaft
travel.
6. CPS RngLwr - Displays the CPS voltage at
the lowest available point of travel. Normally
set by the factory.
7. CPS RngUpr - Displays the CPS voltage
at the highest available point of travel.
Normally set by the factory.
8. Pos S/N - A number which uniquely identifies
the position sensor. May be edited.
9. Snsr Dir - Displays which direction of output
shaft movement will yield an increasing
internal Position Sensor signal. Normally set
at factory to "CW Incr" (signal increases as
the output shaft rotates CW).
Demand Setup Submenu
(Block 4D)
This menu is where all the Demand input
signal related drive parameters are set. The eight
parameter entries are as follows:
1. DemRngLwr - The value of the Demand
signal (in mA) that corresponds to 0%.
Normally set to "4.00 mA", this value should
be set above the "DemLimLwr" value.
2. DemRngUpr - The value of the Demand
signal (in mA) that corresponds to 100%.
Normally set to "20.00 mA", this value should
be set below the "DemLimUpr" value.
3. Dem Curve - Allows a choice in the relationship
between the applied Demand signal and the
desired position of the output shaft. Choices
are: Linear, Square Root, Dem Curve Special,
& Square.
4. Dem Curve Spcl - When "Dem Curve" above
is set to "Special", this command allows
access to a submenu to setup the preferred
Demand curve.
5. Los Mode - Sets the output shaft response
to a loss of Demand signal condition. Can be
set to "Stay" or "Go-to-Pos".
6. Los Pos - If "Los Mode" has been set to "Go-
to-Pos", this parameter allows the user to
define the position (in percentage of travel) to
where the output shaft will move during Loss
of Signal conditions. May be set between
-5.00% and 105.00%.
7. DemLimLwr - Sets the minimum usable
value of Demand. Below this value, the
Loss of Signal condition will be set. Values
between 0 mA and 12 mA may be selected.
This value should be set lower than the low
Demand Range ("DemRngLwr").
8. DemLimUpr - Sets the maximum usable
value of Demand. This value should be
set higher than the upper Demand Range
("DemRngUpr").
Feedback Setup Submenu
(Block 4E)
This menu is where all the Feedback signal
related drive parameters are set. The four
parameter entries are as follows:
1. FBRngLwr - The value of the Feedback
signal (in mA) that corresponds to a 0%
output shaft position. This value can range
between 3.0 mA and 16.0 mA.
2. FBRngUpr - The value of the Feedback
signal (in mA) that corresponds to a 100%
output shaft position. This value can range
between 7.0 mA and 21.0 mA.
3. Feedback - Enables or Disables the Feedback
signal.
4. FB Curve - Allows a choice in the relationship
between the applied Feedback signal and
the actual position of the drive. Choices are:
Linear & Inverted Demand ("InvDem").
Torque Setup Submenu
(Block 4F)
This menu is where all the Torque related
drive parameters are set. The five parameter
entries are as follows:
1. Trq/Thrust - Enables or Disables torque
related functions.
2. Ovt Prot - Enables or Disables over-torque
protection, which will remove power from the
motor if excessive torque is detected.
3. AlarmLevel - Sets the value that, if exceeded,
will cause the Torque Alarm to activate.
4. ShutDwnTrq - Sets the value that, if
exceeded, will cause the power to be removed
from the motor (if "Ovt Prot" is enabled; see
above). This will cause a shutdown alarm.
5. Trq Null - Sets the torque value that
corresponds to 0% torque applied. This
number is represented in "TK" units, and is
noted on the label inside the DCM-2 cover
(also referred to as "Torque Zero").
6. Trq Const - Sets the torque value that
corresponds to 100% torque applied. This
number is represented in "TK" units, and is
noted on the label inside the DCM-2 cover.
DCM HART® INTERFACE Communication
Statistics Menu
(Block 3D)
This menu is where all the drive’s stored
operating statistics are available. There are eight
different statistics available:
1. Starts - Logs and displays the total number of
starts the drive motor has made.
2. Reversals - Logs and displays the total
number of times the motor started in a
direction opposite to the previous start.
3. Stalls - Logs and displays the total number of
stalled conditions the drive has experienced.
For the drive to register a stall, the DCM
board must be unable to balance the drive
position against the Demand input signal for
a period exceeding the Stall Time set in the
General Setup menu.
4. OverTorques - Logs and displays the total
number of times that excessive torque was
detected at the output shaft.
5. Pk Torque - Logs and displays the maximum
torque sensed at the output shaft.
6. TotRunTm - Logs and displays the total run
time of the drive motor in seconds.
7. High temp - Logs and displays the highest
temperature in degrees Fahrenheit measured
by a temperature sensor resident on the DCM
board.
8. Low temp - Logs and displays the lowest
temperature in degrees Fahrenheit measured
by a temperature sensor resident on the DCM
board.
Manual Operation Menu
(Block 3E)
This menu is used to allow manual drive
operation with the HART® communicator.
There are three manual operation procedures
available:
1. Op mode (Block 4G) - This procedure allows
the user to select the operating mode of
the DCM. There are four possible choices:
“Follow”, “Hold”, “Stay” and “Stop”. The
“Follow” mode is the normal state of operation
and allows the DCM to control the drive
operation by responding to the analog input
Demand signal when the drive Handswitch is
in the automatic position. The “Hold” mode
causes positioning according to the HART
Interface Demand Value. The “Stay" mode
causes the output shaft to remain stationary
and maintain its present position. Note that
in "Stay" mode, the Handwheel cannot be
freely turned. The "Stop" mode removes
power from the motor. Note that in "Stop"
mode the Handwheel can be freely turned.
All operating modes can be overridden by the
drive Handswitch.
2. Demand - This procedure sets the effective
Demand signal. If Op mode is set to "Hold",
entering a valid value (-5% to 105%) will
control the motor. If Op mode is set to
"Follow", the value will follow the Demand
analog signal (unless an alarm condition
exists).
3. Reset Stall - This procedure resets normal
drive operation after a stall condition has
caused the drive to shut down. Selecting this
option and following the prompts will restore
operation. Note that stall conditions can
also be reset by simply reversing the input
Demand signal or cycling the drive ac power.
This menu provides access to all the DCM
stored online diagnostic information about drive
operation. The menu provides six submenus
accessing drive statistics and online drive status.
Status Submenu
(Block 4H)
This menu provides access to six submenus
displaying various drive status settings: LED
Status, Operating Status, Switch Status, Local
Cntrl Status, CW Inhibitors, and CCW Inhibitors.
LED Status Submenu
(Block 5B)
This menu displays the ON or OFF status of
each of the LEDs on the DCM. See below.
Operating Status Submenu
(Block 5C)
This menu displays the ON or OFF status of
eight drive parameters: Dem Limits, Pos Limits,
Temp Limits, Torq Limits, Over-Torq Stop, Stalled,
Feedback Open, and Switch Block. See below.
Switch Status Submenu
(Block 5D)
This menu displays the ON or OFF status
of the eight switch parameters: LV Lim CCW,
LV Lim CW, OvrRd CCW, OvrRd CW, OvrRd
Stop, HndSw CCW, HndSw CW, and HndSw
AUTO. The Switch Status menu displays the
status of the CW/CCW control override input, the
STOP control override or if the Handswitch is in
the CW/CCW or AUTO position.
Local Control Status Submenu
(Block 5E)
This menu displays the ON or OFF status of
five local interface drive parameters: Calibrate,
Set Pos 100%, Set Pos 0%, Set Dem 100%, and
Set Dem 0%. The Local Control Status submenu
indicates which buttons on the Local Control
board are pressed.
LED
HART
NAME
NAME
DESCRIPTION
STAT
"Status"
"ON indicates that an operating
condition is inappropriate see
Operating Status menu'"
REV
"Reverse"
"ON indicates that the Demand
signal is less than the Position
signal"
FWD
"Forward"
"ON indicates that the Demand
signal is greater than the
Position signal"
DEM_ERR
"Demand"
"ON indicates that a Demand
error condition exists check the
operating mode settings"
POS_ERR
"Position"
"ON indicates that the Position
signal may be out of range or
saturated"
TORQ_ERR
"Trq/Thrust"
STALL_ERR
"Stall"
"ON indicates that the motor
may be stalled"
TEMP_ERR
"Temperature"
"ON indicates that a
temperature fault exists"
FB_ERR
"FB Open"
"ON indicates that the
feedback loop is open or
out of range"
STOP_ERR
"Limit"
"ON indicates that a limit
switch has been triggered"
ACKN_ERR
"Acknowledge"
"Acknowledge indicator is
active"
CONDITION
DESCRIPTION
DEMAND_LOS
"The Demand Signal is outside
of the intended limits (see
Demand Setup menu)"
TRQ_THRUST_OVERRANGE
STALL
"Stall condition has been
detected (see General Setup
menu)"
OVERTRQ_THRUST_
PROTECTION
STOP_OR_LIMIT
"Motor power is blocked check
switches"
FEEDBACK_
"The Feedback signal is
DISCONNECTED
enabled but the loop is open"
TEMPERATURE_
"The temperature is outside of
OVERRANGE
–40F to 185F"
POSITION_OVERRANGE
"The Position signal is less
than –5% or greater than 105%"
DCM HART® INTERFACE Communication
3. Identify Device - This command will cause the
Acknowledge LED to blink for two seconds.
Used to verify proper HART communications
as well as an aid in identifying which drive is
being addressed when configuring multiple
drives for split range operation.
4. Board reset - This procedure resets the
board without powering down the drive. There
are many communicator procedures that
implement the reset procedure automatically
to ensure the proper initialization of the DCM
board; however, manually implementing the
reset procedure is not typically necessary.
CW Torque Submenu
(Block 4J)
This menu displays the torque applied over
ten segments of travel of the drive shaft.
CCW Torque Submenu
(Block 4K)
This menu displays the torque applied over
ten segments of travel of the drive shaft.
Alarm Setup Submenu
(Block 4L)
This menu allows customization of alarm
indication:
1. AlarmPol - This determines whether the alarm
relay "Drops Out" or "Pulls In" to indicate an
alarm.
2. Alarm Mask - This leads to a submenu where
alarm conditions may be set.
Alarm Mask Submenu
(Block 5H)
This menu allows alarm conditions
to be ignored; such as DemandLOS, Stall
FeedbackLOS, or other conditions which may
occur under normal operation and that may prove
a nuisance during normal HART operation.
CW Inhibitors Submenu
(Block 5F)
This menu displays the ON or OFF status of the
contributing sources of retract movement inhibitors
of motor operation: Balance, Supervisory, Stall,
OverTrq/Thr, Switch Block, Bad Pos Sig, Bad Dem
Sig, Local Cal. See below.
CCW Inhibitors Submenu
(Block 5G)
This menu displays the ON or OFF status of the
contributing sources of extend movement inhibitors
of motor operation: Balance, Supervisory, Stall,
OverTrq/Thr, Switch Block, Bad Pos Sig, Bad Dem
Sig, Local Cal. See table above.
Tests Submenu
(Block 4I)
This menu provides procedures that allow the
user to test, identify and reset the DCM board.
They are as follows:
1. FB out test - This procedure allows the user
to test the 4–20 mA position feedback output
signal. Following the prompts through this
procedure allows the user to physically verify
the output signal value at 4 mA, 20 mA, and
anywhere in between.
2. Board self-test - This procedure runs an
automatic board test that verifies the health of
the DCM control board. It runs a checksum
memory test and checks for the proper
installation of the position sensor (CPS rotor).
Running the test causes the drive to reposition
temporarily, so it should only be run offline.
The CPS test runs automatically as part of
some calibration and setup procedures. This
test should be implemented only if a DCM
problem is suspected.
CONDITION
DESCRIPTION
Balance
"ON indicates that the Demand and
Position are at balance"
Supervisory
"ON indicates that the DCM is
initializing"
Stall
"ON indicates a Stall condition"
OverTrq/Thr
Switch Block
"ON indicates that the Handswitch,
Override, or Limit Switch is inhibiting
movement"
Bad Pos Sig
"ON indicates that the Position signal
is out of range"
Bad Dem Sig
"ON indicates that the Demand signal
is out of range"
Local Cal
"ON indicates that a Local Calibration
button is pressed"
This menu allows the date and time to be set.
The settings are as follows:
1. RTC Day - Numerical entry sets the day of the
month.
2. RTC Month - Numerical entry sets the
month.
3. RTC Year - Numerical (4 digit) entry sets the
year.
4. Hour (24) - Numerical entry sets the hour of
the day (1–24).
5. Minute - Numerical entry sets the minute of
the hour.
Calibration Trim Menu
(Block 3G)
This menu displays/sets drive calibration
values:
1. PresCPS V - Displays the present value of the
internal Position Sensor voltage. This value
can also be measured at TP4(+) and TP1(–)
on the DCM board. This value can be edited
to trim the Position Sensor.
2. Loop(Dem) - Displays the Demand signal
as measured at the field wiring terminals.
When the Demand control loop signal is being
overridden by a special mode of operation,
the effective Demand will not correspond to
the mA value. This value can be edited to trim
the Demand to ensure accurate measurement
of the analog signal. Demand can only be
trimmed at 4.0 mA and 20.0 mA.
3. Feedback - Displays the mA signal
representing the output shaft position as
measured at the field wiring terminals. This
value can be edited.
4. Trq/Thrust - Displays the load measured at
the output shaft as a percentage. This value
can be edited.
DCM HART® INTERFACE Configuration and Setup
All drives are shipped completely configured
to the customer’s specifications and are ready
to be installed. If the need arises to change
the configuration of the drive (i.e., change
one or more of the setup parameters that
define how the drive operates), this may be
accomplished utilizing the HART® interface
and a communications tool (model 275 or 375
HART® Communicator) as described in the
Communications section of this manual. This
section of the manual covers how the drive is
configured and gives instructions for changing
each particular setup parameter available. It
is intended to build upon the Communications
Section, which provides a detailed description
of the HART® Menu Tree and defines all the
parameters and commands. If unfamiliar with
the HART® communicator and Beck drives,
please review the Communications section
before proceeding.
There are a number of configuration setup
parameters that can be changed to custom tailor
the drive’s operation to the application needs. The
remainder of this section provides instructions
for changing each of these parameters. The
instructions below assume that the user has a
model 275 HART® Communicator attached to the
Demand wiring (at drive terminals AA and BB or
anywhere across the wires all the way back to the
source of the Demand signal), has established
communications with a particular drive, and has
a copy of the HART® Menu Tree (Figure 1, page
26) available.
DRIVE SHAFT TRAVEL
Drive shaft travel refers to the direction the
output shaft of the drive moves in response to
an increasing Demand input signal. The travel
is either clockwise (CW) or counterclockwise
(CCW). The control loop operation and physical
design of the final control element determine
the drive travel suitable for an application. If
the drive travel needs to be changed, this is
easily accomplished by changing the DCM
configuration.
Changing Drive Shaft Travel
STEP 1 - From the HART® communicator
“Online” menu, move to the “General Setup”
menu and select the “Drive Dir” parameter. This
is accomplished by using the up and down arrow
keys to select the appropriate item in each menu
and then moving forward by pressing the right
arrow key. Follow the Menu Tree (Figure 1, page
26) to navigate.
STEP 2 - With the “Drive Dir” parameter
selected, press the right arrow key to display the
two entry choices: “CW incr” and “CCW incr”.
Use the up and down arrow keys to select the
desired parameter.
STEP 3 - With desired parameter selected,
push the F4 function key, which is defined as the
ENTER key at the bottom of the display. Pushing
this key enters the value and reverts the display
back to the “General Setup” main menu.
STEP 4 - At the bottom of the “General Setup”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change.
WARNING
Carefully follow on-screen warnings and
messages when proceeding; changing this
parameter will cause the drive to reposition.
This can adversely affect the process and
cause potentially dangerous conditions.
STEP SIZE
The step size is the incremental movement
of the drive shaft in response to signal changes.
The step size is factory set at 0.15% unless
otherwise specified at the time of order. The step
size is adjustable from 0.1% to 2.5%. To adjust
the step size, please follow the steps below.
Changing the Step Size
STEP 1 - From the HART® communicator
“Online” menu, move to the “General Setup”
menu and select the “StepSize” parameter. This
is accomplished by using the up and down arrow
keys to select the appropriate item in each menu
and then moving forward by pressing the right
arrow key. Follow the Menu Tree (Figure 1, page
26) to navigate.
STEP 2 - With the “StepSize” parameter
selected, press the right arrow key to display the
modifiable entry box, and using the alphanumeric
keypad, type in the desired dead band value.
Values between 0.1% and 2.5% are valid.
STEP 3 - With the desired value correctly
typed into the entry box, push the F4 function key
which is defined as the ENTER key at the bottom
of the display. Pushing this key enters the value
and reverts the display back to the “General
Setup” main menu.
STEP 4 - At the bottom of the “General Setup”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change.
Carefully follow on-screen warnings and
messages when proceeding; changing this
parameter will cause the drive to reposition.
This can adversely affect the process and
cause potentially dangerous conditions.
STALL PROTECTION
The DCM board protects the drive motor and
gearing in the event of a stalled condition. The
board senses when the drive is unable to balance
for a set period of time (stall time). If the DCM is
unable to balance the drive for a period greater
than the stall time, it shuts off power to the
motor and prevents the drive from continuing to
operate against the stall. Resetting the drive and
restoring normal operation is achieved in several
ways: Reversing the Demand signal to the drive,
performing a stall reset procedure (see Manual
Operation Menu, Figure 1, page 26), performing
a board reset procedure (see Diagnostics Menu,
Figure 1, page 26), or cycling the drive ac power.
Changing Stall Time
STEP 1 - From the HART® communicator
“Online” menu, move to the “General Setup”
menu and select the “Stall Time” parameter.
Use the up and down arrow keys to select the
appropriate item in each menu and then moving
forward by pressing the right arrow key. Follow
the Menu Tree (Figure 1, page 26) to navigate.
STEP 2 - With the “Stall Time” parameter
selected, press the right arrow key to display the
modifiable entry box, and using the alphanumeric
keypad, type in the desired stall trigger time in
seconds. It is normally set to a maximum of 300,
but can be changed to a minimum of 30 seconds.
WARNING
It is possible to set the stall time to a value
less than the full travel time of some drives.
This may lead to false stall conditions when
making very large changes. Typically, this
would only occur during start-up, shut
down or a condition requiring a large
change in Demand from the controller.
STEP 3 - With the desired value correctly
typed into the entry box, push the F4 function key
which is defined as the ENTER key at the bottom
of the display. Pushing this key enters the value
and reverts the display back to the “General
Setup” main menu.
STEP 4 - At the bottom of the “General Setup”
menu, the F2 function key should now be defined
as the SEND key. Press to execute the change.
WARNING
Carefully follow on-screen warnings and
messages when proceeding; changing this
parameter will cause the drive to reposition.
This can adversely affect the process and
cause potentially dangerous conditions.
OVERTRAVEL ANNUNCIATION
When communicating between the DCM
and 275 HART® Communicator, different
informational messages may display for certain
conditions. One such message is “H/S in STOP
or drive at limit sw”. This displays when the DCM
is attempting to reposition the output shaft, but
cannot due to a break in the electrical power to the
motor. This can happen if the Handswitch is put
in STOP or if an over-travel limit switch is open.
Normally, this is a useful message that should
be displayed; however, in certain situations like
split range operation (see split ranging, page
48), it can become a nuisance. For example, in
a split range operation one or more of the drives
will be interpreting the Demand input signal as
out of range (i.e., either above 100% Demand or
below 0% Demand) and will be against an over-
travel limit switch at any given time. Since this is
normal for split range operation, the message will
be a nuisance rather than informational.
Setting the “Overtravel Annunciate” feature
to “Ignore” will eliminate the message, but only
when the Demand signal is above 100% or below
0% and an over-travel limit switch is open. This
eliminates the nuisance message, but does not
eliminate the message for other scenarios like
the Handswitch being in the STOP position.
Changing Overtravel
Annunciation
STEP 1 - From the HART® communicator
“Online” menu, move to the “General Setup”
menu and select the “LimitSwitch” parameter.
Use the up and down arrow keys to select the
appropriate item in each menu and then move
forward by pressing the right arrow key. Follow
the Menu Tree (Figure 1, page 26) to navigate.
STEP 2 - With the “LimitSwitch” parameter
selected, press the right arrow key to display
the modifiable entry box, select either "Accept"
to turn off the HART warning or "Alert"
to ensure the HART warning is transmitted.
STEP 3 - With the desired selection highlighted,
push the F4 function key (which is defined as the
ENTER key at the bottom of the display). Pushing
this key enters the value and reverts the display
back to the "General Setup" main menu.
Continued
DCM HART® INTERFACE Configuration and Setup
STEP 4 - At the bottom of the "General Setup"
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change.
POSITION FEEDBACK SIGNAL
DCM boards are equipped with a Feedback
Sourcing module that provides a 4–20 mA analog
output signal that represents the drive output shaft
position in terms of 0–100% of full directional travel.
This signal can be remotely monitored or used by a
controller or indicator. The signal can be enabled or
disabled. Normally, the signal should be enabled,
but in a situation where the feedback is present, but
unused (i.e., not wired to a load) a HART® alarm
message will be present while communicating
using the 275/375 Communicator. This message is
helpful in alerting to open feedback wiring, but is a
nuisance when feedback is purposely disconnected
or unused. Disabling the feedback signal turns off
the output and eliminates the message.
Enabling / Disabling Position
Feedback Signal
STEP 1 - From the HART® communicator
“Online” menu, move to the “Setup Checklist”
menu and select the “Feedback” parameter.
Use the up and down arrow keys to select the
appropriate item in each menu and then press the
right arrow key. Follow the Menu Tree (Figure 1,
page 26) to navigate.
STEP 2 - With the “Feedback” parameter
selected, press the right arrow key. Use the
up and down arrow keys to select the desired
parameter. “Enabled” enables the output signal,
while “Disabled” disables the output.
STEP 3 - Push the F4 function key (defined
as the ENTER key at the bottom of the display).
This enters the selected parameter and reverts the
display to the “Setup Checklist” main menu.
STEP 4 - At the bottom of the “Setup Checklist”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change. This change should not effect drive
positioning but, as with all configuration changes,
carefully follow the on-screen warnings and
messages when proceeding.
DEMAND SIGNAL
CHARACTERIZATION
The Beck DCM is designed to receive a
4–20 mA (1–5 V dc) input Demand signal and
respond by repositioning the drive output shaft
Overtravel annunciatiOn, cOnt’d.
in proportion to the signal. There are four ways
in which the DCM can interpret the Demand
signal: Linear, Square Root, Dem Curve Special
and Square. Linear is the most common setting
and simply causes the drive to position the
output shaft in a one-to-one relationship with the
Demand. For example, a 1% change in Demand
will cause a 1% position response. The Square
Root setting produces a response proportional
to the square root of the Demand Signal. Dem
Curve Special allows a customized Demand
curve to be setup through a special submenu.
Square produces a non-linear drive response
proportional to the square of the Demand
signal. For example, a 25% input Demand is
interpreted as 0.252 or 0.0625 (6.25%). The
square relationship helps to linearize flow
response of final control elements that have
quick opening characteristics.
Changing Characterization
STEP 1 - From the HART® communicator
“Online” menu, move to the “Demand Setup”
menu and select the “Dem Curve” parameter.
Use the up and down arrow keys to select the
appropriate item in each menu and then press the
right arrow key. Follow the Menu Tree (Figure 1,
page 26) to navigate.
STEP 2 - With the “Dem Curve” parameter
selected, press the right arrow key to display the
four entry choices: “Linear”, "Square Root", "Dem
Curve Special" or “Square”. Use the up and down
arrow keys to select the desired parameter.
STEP 3 - With parameter selected, push the
F4 function key (defined as the ENTER key at
the bottom of the display). This key enters the
selected parameter and reverts the display back
to the “Demand Setup” main menu. If "Dem Curve
Special" is selected, proceed to the "Dem Curve
Special" sub-menu to setup the desired curve.
STEP 4 - At the bottom of the “Demand Setup”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change.
WARNING
Carefully follow on-screen warnings and
messages when proceeding; changing this
parameter will cause the drive to reposition.
This can adversely affect the process and
cause potentially dangerous conditions.
LOSS OF DEMAND INPUT
SIGNAL
The DCM board has the capability of
determining when the Demand input signal to the
drive is lost, and then responding in the method
most appropriate for the application. There are
three setup parameters that must be configured
in order to define this capability: “LOS Mode”,
“LOS Pos” and “DemLimLwr”. The “LOS Mode”
parameter determines how the drive responds
to the loss of the Demand input signal. Choices
are “STAY” (the drive holds its current position
when the signal is lost) or “GO-TO-POSITION”
(the drive moves to a predetermined position). If
the “Go-to-Pos” option is selected, the “LOS Pos”
parameter is used to determine what output shaft
position the drive must achieve when the input is
lost. Finally, a loss of signal is sensed by the DCM
when the signal drops below the value set by the
“DemLimLwr” parameter. This value is represented
in mA of the Demand input signal range. Therefore,
the standard 3.2 mA value normally used for this
parameter suggests that when the Demand input
signal drops 5% below the calibrated 0% value, the
DCM senses a lost Demand input and executes the
configured loss-of-signal action.
Changing Loss (LOS) of Signal
Action
STEP 1 - From the HART® communicator
“Online” menu, move to the “Demand Setup”
menu and select the “LOS Mode” parameter. This
is accomplished by using the up and down arrow
keys to select the appropriate item in each menu
and then moving forward by pressing the right
arrow key. Follow the Menu Tree (Figure 1, page
26) to navigate.
STEP 2 - With the “LOS Mode” parameter
selected, press the right arrow key to display the
two entry choices: “Stay” or “Go-to-Pos”. Use
the up and down arrow keys to select the desired
parameter.
STEP 3 - With desired choice selected, push
the F4 function key which is defined as the ENTER
key at the bottom of the display. Pushing this key
enters the selected parameter and reverts the
display back to the “Demand setup” main menu. If
the “Go-to-Pos” choice was selected, go to STEP 4,
if “Stay” was selected, go to STEP 6.
STEP 4 - After entering “Go-to-Pos”, select
the “LOS Pos” parameter and use the right arrow
key to display the modifiable entry block. Unless
otherwise specified, this value is set to 50% at the
factory. Using the keypad, enter the desired loss of
signal position as a percentage of full output shaft
travel. Values from -5% to 105% are valid.
STEP 5 - With desired value correctly typed
into the entry box, push the F4 key which is defined
as the ENTER key at the bottom of the display.
Pushing this key enters the value and reverts the
display to the “Demand Setup” main menu.
STEP 6 - At the bottom of the “Demand Setup”
menu, the F2 function key should now be defined
as the SEND key. Press to execute the change.
WARNING
Carefully follow on-screen warnings and
messages when proceeding; changing this
parameter will cause the drive to reposition.
This can adversely affect the process and
cause potentially dangerous conditions.
Changing LOS Trip Point
STEP 1 - From the HART® communicator
“Online” menu, move to the “Demand Setup” menu
and select the “DemLimLwr” parameter. This is
accomplished by using the up and down arrow
keys to select the appropriate item in each menu
and then moving forward by pressing the right
arrow key. Follow the Menu Tree (Figure 1, page
26) to navigate.
STEP 2 - With the “DemLimLwr” parameter
selected, press the right arrow key to display the
modifiable entry block. Using the alphanumeric
keypad, enter the desired Demand signal lower
limit value in mA outside of the Demand signal
range.
STEP 3 - With desired value correctly typed
into the entry box, push the F4 function key which
is defined as the ENTER key at the bottom of the
display. Pushing this key enters the value and
reverts the display back to the “Demand Setup”
main menu.
STEP 4 - At the bottom of the “Demand Setup”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change.
TORQUE OPTIONS
DCM-2 boards have the capability to measure
the drive’s torque output. This, in turn, makes
it possible to provide several torque-related
features. The features include a live display
of the torque output on the 275/375 HART®
Communicator display or any other device
capable of communicating and displaying HART®
transmitted variables. Included is the ability to
store peak torque values within the DCM-2 and
view them by accessing the device information
menu. To protect the drive gearing and related
equipment, the drive can be configured to shut
off if the torque exceeds 150% of the drive torque
rating. The DCM-2 also provides a high torque
alarm, via HART® communications, that alerts the
user to a high torque condition when the torque
output exceeds a set value (normally set at 105%
of the drive rating).
DCM HART® INTERFACE Configuration and Setup
Enabling Torque Functions
STEP 1 - From the HART® communicator
“Online” menu, move to the “Torque Setup” menu
and select the “Trq/Thrust” parameter. This is
accomplished by using the up and down arrow
keys to select the appropriate item in each menu
and then moving forward by pressing the right
arrow key. Follow the Menu Tree (Figure 1, page
34) to navigate.
STEP 2 - With the “Trq/Thrust” parameter
selected, press the right arrow key to display the
two entry choices: “Enabled” or “Disabled”. Use
the up and down arrow keys to select the desired
parameter. Enabling this parameter will activate
the torque measurement features and displays,
while disabling the parameter will turn them off.
STEP 3 - With the desired choice selected,
push the F4 function key, which is defined as
the ENTER key at the bottom of the display.
Pushing this key enters the selected parameter
and reverts the display back to the “Torque setup”
main menu. Carefully follow the on-screen
warnings and messages to return to normal
operation.
Enabling Over-torque
Protection
STEP 1 - From the HART® communicator
“Online” menu, move to the “Torque Setup”
menu, make sure that the “Trq/Thrust” parameter
is enabled (if not, enable it using the prior
procedure) and select the “Ovt Prot” parameter.
This is accomplished by using the up and down
arrow keys to select the appropriate item in each
menu and then moving forward by pressing the
right arrow key. Follow the Menu Tree (Figure 1,
page 34) to navigate.
STEP 2 - With the “Ovt Prot” parameter
selected, press the right arrow key to display the
two entry choices: “Enabled” or “Disabled”. Use
the up and down arrow keys to select the desired
parameter. Enabling this parameter will activate
the over-torque protection, while disabling the
parameter will turn it off.
STEP 3 - With the desired choice selected,
push the F4 function key, which is defined as the
ENTER key at the bottom of the display. Pushing
this key enters the selected parameter and
reverts the display back to the “Torque Setup”
main menu.
STEP 4 - At the bottom of the “Torque Setup”
menu, the F2 function key should now be defined
as the SEND key. Push this key to execute the
change. This change should not effect drive
positioning but as with all configuration changes,
carefully follow the on-screen warnings and
messages when proceeding.
DCM HART® INTERFACE Calibration
All Beck drives are shipped completely
calibrated to the customer specifications, and
are ready to be installed. If the need arises to
change the drive calibration, confirm that the
drive is installed as specified and operating
properly before proceeding with the change. It
is also helpful to verify the drive configuration.
This can be done by reviewing the settings in the
Configuration menu.
With the exception of the settings for the over-
travel limit switches, auxiliary limit switches and
CPS, all calibration is performed using the HART
interface and a communications tool (model
275/375 HART Communicator), as described in
the Communications section of this manual. If
unfamiliar with the HART communicator and
Beck drives, please review the Communications
section of this manual before continuing.
The DCM can be calibrated by using the
"Position Setup" and "Demand Setup" menus.
Normally, calibration should not require
adjustment; however, if the Position or Demand
requires minor adjustment, the "Calibration Trim"
menu may be used.
Any calibration changes that are made
using any of the above described methods, can
be reversed by using the “Restore to Factory”
feature in the "Configuration" menu. Note that
implementing the “Restore to Factory” feature
returns all settings to the as-shipped factory
settings.
DIRECTION OF SHAFT
ROTATION (CW VERSUS CCW)
Direction of shaft rotation is determined when
looking at the end of the output shaft (see figure
at right). Direction of rotation is defined as the
direction of output shaft rotation produced by
an increasing demand signal. Unless otherwise
specified at the time of order, the output shaft is
factory-set to rotate clockwise in response to an
increasing signal.
CALIBRATION PRIORITY
Model 11-439 drives are equipped with fixed,
non-adjustable, built-in mechanical stops. All out-
put shaft rotation must occur within these stops,
which are approximately 108° apart.
The over-travel limit switches are used to limit
the electrical control range of the drive. These
switches are cam operated and are set slightly
wider apart then the drive’s intended full range
of electronic operation (typically 100°). The limit
switches are positioned to provide an electrical
overtravel protection (typically 101°).
CLOCKWISE
COUNTERCLOCKWISE
If the drive is short-stroked—i.e., the full travel
rotation from 0–100% is reduced to less than the
standard 100° rotation (see page 45)—it may be
desirable to reset the over-travel limit switches
(see page 42). If the limit switches are not reset,
Handswitch operation of the drive (CW, CCW)
will still result in the original full range of travel.
It is best to calibrate the drive and then set the
limit switches when short-stroking the drive. The
switches should be set just outside the calibrated
range to avoid tripping the switch at the 0% and
100% positions.
The auxiliary switches are also cam operated,
but have no affect on drive and DCM operation.
Therefore, the auxiliary switches can be adjusted
at any time without affecting performance or cali-
bration.
NOTE: Your Beck drive was shipped from
the factory ready for installation; no electri-
cal adjustments are required before placing
it in operation. Each drive is set up and cali-
brated to the specifications that were written
into the equipment order.
Under normal operating conditions there is no
need to recalibrate the control drive. However, if
the application requirements change or are dif-
ferent than specified on the equipment order, the
drive should be recalibrated according to the fol-
lowing procedures.
SWITCH ADJUSTMENTS
Control drives are shipped with over-travel
limit switches factory-set for 101° of travel
unless otherwise specified at time of order. Limit
switches must be set inside the range of the
fixed, non-adjustable, built-in mechanical stops
to prevent stalling of the motor. Limit switches
can be reset to limit travel of the output shaft to
any angle down to a minimum of 60°. Auxiliary
switches are set as shown in the figure at left
unless otherwise specified at time of order.
NOTE: The over-travel limit switches are the
switches located closest to the drive body. To
adjust the over-travel limit switches, it is nec-
essary to remove the control end cover.
Switches are operated by cams which are
clamped onto the control shaft. Setting a switch
involves loosening the cam, moving the output
shaft to the desired position, and positioning the
cam so that it just operates the switch at that point.
In the following procedure, the use of a continu-
ity meter is recommended to determine when the
switch opens or closes. If such a meter is not
available, it is possible to hear the switch click as
the contacts open and close.
CAUTION
Do not attach the meter or attempt to move the
switch cams until the drive is discon nected
from the line voltage and auxiliary switches are
disconnected from external power sources.
Setting Over-travel Limit
Switches CW and CCW
This procedure should be used if the factory
over-travel limit switch settings must be changed
in the field. It is advisable to operate the drive fully
in each direction, using the electric Handswitch to
check switch settings before attempting to change
them. Follow these instructions if they require ad-
justment:
1. Remove the control end cover and terminal
block cover (1/2" bolt heads).
2. Use the electric Handswitch to drive the con-
trol shaft so that the CW switch cam screw is
accessible. Using a 7/64" hex wrench, loosen
the screw so that the cam is just snug on the
shaft (see illustration below).
3. Move the output shaft clockwise to the desired
CW limit.
Standard Over-travel Limit and
Auxiliary Switch Settings
DCM HART® INTERFACE Calibration - Switches
4. Turn the Handswitch to the “STOP” position.
5. Disconnect power from the drive.
6. Turn the Handswitch to the "AUTO" position.
7. Connect the continuity meter across terminals
B and M. Rotate the cam until the meter shows
no continuity (switch contacts open, switch
clicks).
8. Tighten the cam locking screw to 5 Ib-in
torque.
9. Disconnect meter and turn the Handswitch to
the "STOP" position.
10. Reconnect drive power.
11. Rotate the drive’s output shaft in the CCW
direction away from the CW travel limit. Note
the direction of rotation of the lobe of the cam.
The correct cam lobe motion is away from the
switch lever with the switch lever on the lower
part of the cam. If not correct, return to step 2
and reset the cam to the proper orientation.
12. Rotate the output shaft again to the desired CW
travel limit. If the stopping point is reached, the
switch is properly set.
13. Repeat instructions for setting CCW travel
limit switch (noting that referenced directions
of rotation should be opposite of those used for
CW switch setting). Connect continuity meter
across terminals B and N.
14. Replace covers and tighten cover bolts to
10 Ib-ft torque.
15. Rotate index to correspond with output shaft
rotation.
Setting Auxiliary Switches
Standard switch settings for drives with 2 or 4
auxiliary switches are shown on the diagram on
page 42. The heavy line indicates a closed circuit.
Follow these instructions to change the operating
point of auxiliary switches:
NOTE: In the following procedure, it is as-
sumed that switch settings are to be adjusted
so that contacts are open when the desired
position is achieved. If they are to be adjusted
to close, it may be necessary to reverse the
operating mode of the switch by moving the
wire lead to the other terminal on the switch
itself. Be sure to disconnect power from the
switch terminals first.
1. Remove the control end cover and the terminal
block cover (1/2" bolt heads).
2. Use the electric Handswitch to drive the shaft
so that the switch cam is accessible. Using a
7/64" hex wrench, loosen the screw so that the
cam is just snug on the shaft.
3. Move the output shaft to the desired position.
4. Turn the Handswitch to the “STOP” position.
5. Disconnect power from the drive and switch
terminals.
6. Connect the continuity meter across the ap-
propriate terminals. See the diagram on page
9 or the drive wiring diagram. Rotate the cam
to operate the switch.
7. Tighten the cam locking screw to 5 Ib-in
torque.
8. Disconnect the meter and reconnect power.
9. Move the drive’s output shaft in the desired
direction so that the cam lobe moves away from
the switch lever. If not correct, return to step 2
and reset the cam to the proper orientation.
10. Replace covers and tighten cover bolts to 10
Ib-ft torque.
Loosening Switch Cam
DCM HART® INTERFACE Calibration - Position
POSITION SENSOR SETUP
In order to correctly position the drive output
shaft in response to the input Demand signal,
the DCM board receives a position signal from
the drive’s position sensor (CPS) and compares
this actual position to the desired Demand input.
This process requires that the DCM interprets
the CPS signal appropriately for the full range
of desired travel. The "PositionSensrSetup"
submenu is used to set the DCM to accept the
CPS position signal and interpret the appropriate
0–100% range.
All Beck drives are shipped completely set
and calibrated to the customer specifications
and are ready for installation. Normally, no
adjustments are necessary.
If, however, the position calibration needs to
be changed, the "PositionSensrSetup" submenu
must be used. The "PositionSensrSetup" is
accessible through the "Configuration" menu.
The "PositionSensrSetup" submenu will allow
resetting of the minimum travel position of the
drive (Set Pos 0%) and the CPS voltage at the
minimum travel position (CPS Zero%). Online
help is available through the communication
device.
Crank arm may be adjusted to any start angle orientation.
The orientation shown above has been randomly
selected for the purpose of this example.
NOTE:
Example showing actuator short-stroked to 80% of full travel.
Short-stroke Operation
(Reducing Full Travel)
Typically, it is best to use the full 100% travel
of the drive in response to the 0–100% Demand
input signal.
In certain applications, as a last resort, it may
become necessary to reduce the full travel of the
drive. In these applications, the DCM can be
calibrated to accommodate reduced stroke. The
recommended minimum full travel is 60%, although
it is advisable to make the range as close to 100%
as possible for the highest position resolution
attainable with the CPS and to avoid possible
reduction in torque.
Reducing the full travel is referred to as
“short-stroking” the drive. This can be easily
accomplished by using a HART communication
device.
First, navigate to the Configuration menu.
Select the General Setup submenu. Select the
Travel parameter. Reduce the stroke by entering
a percentage of full travel (not less than 60%) of
the maximum travel of the drive.
DCM HART® INTERFACE Calibration - Feedback
FEEDBACK SIGNAL
CALIBRATION
DCM boards have the capability of providing
a 4–20 mA output signal so that the drive’s true
output shaft travel can be monitored remotely.
The signal comes calibrated from the factory to
provide a precise 4–20 mA signal corresponding
to 0–100% drive travel. Normally, calibration
is not required even if the position reference
calibration or direction of travel are changed,
because the DCM automatically compensates
for these changes and appropriately scales the
position feedback signal.
If the Feedback must be changed, it is
accomplished by using a Hart communication
device. First, navigate to the Configuration menu.
Next, select the Feedback Setup submenu.
Through this submenu, the Feedback range may
be changed, as well as the curve. Online help is
available through the communication device.
DCM HART® INTERFACE Calibration - Demand
DEMAND SIGNAL
CALIBRATION
DCM boards are designed to accept a
4–20 mA (or 1–5 V dc) analog Demand signal.
Narrower spans within this range can also
be accommodated for split range operation
(see explanation following). The input comes
calibrated from the factory for the full range
unless otherwise specified. It is not necessary
to calibrate the Demand input when the drive is
installed.
If the Demand must be changed, it is
accomplished using a HART comunication
device.
First, navigate to the Configuration menu.
Select the Demand Setup submenu. Through
this submenu, the Demand range limits and
curve specifications may be changed. Online
help is available through the communication
device.
DCM HART® INTERFACE Calibration - Demand / Torque
Split Range Operation
It is sometimes desirable or necessary to have
more than one final control element controlling
a single process. Often, this type of control
strategy requires that two to four Beck drives
each respond to different portions of one 4–20
mA Demand signal from the control system.
This type of operation is called split range
operation. For example, consider the most
common split range scenario—two drives split
ranged for 50% of the 4–20 mA Demand signal
input. Both drives are wired in parallel to
receive the same 4-20 mA signal (note that
the total loop resistance should be 250 Ohms
as specified by the HART® communications
protocol. The 250 Ohm input resistor (R11; see
DCM illustration on page 67) must be removed
from one of the two drive DCM boards to allow
HART® communications. If more than two drives
are split ranged, the R11 input resistor must be
removed from all the DCM boards but one), but
each drive’s interpretation of the signal must be
different. One drive must interpret 4–12 mA as
0–100% Demand, and one drive must interpret
12–20 mA as 0–100% Demand. This requires
that the drives have different Demand signal
calibrations.
Split-ranging is easily accomplished by
determining the break points (12 mA in the
example above) and using a HART communication
device.
First, navigate to the Configuration menu.
Next, select the Demand Setup submenu.
Change appropriate Demand range limit
accordingly. In the example above, one drive's
upper Demand range (DemRngUpr) would be
changed from 20.00 mA to 12.00 mA; and the
other drive's lower Demand range (DemRngLwr)
would be changed from 4.00 mA to 12.00 mA.
NOTE: Ensure that the L.O.S. (Loss of
Demand input signal) settings of the drives
are appropriate for the new configuration.
This would involve changing the appropriate
Demand LOS limits (DemLimLwr or
DemLimUpr). Typically, these settings are -5%
and 105% of the Demand range. See page 13
for a description of the LOS function.
TORQUE MEASUREMENT
CALIBRATION
DCM-2 boards have the capability of
measuring the drive output torque and providing
several torque-related features. The torque
measurement is calibrated to the drive’s rated
output at the factory. There is normally no reason
to recalibrate this feature in the field, unless a
new DCM-2 board has been installed.
In the event that calibration is required,
it is easily accomplished by using a HART
communication device.
First, navigate to the Configuration menu.
Next, select the Torque Setup submenu. Select
the Trq Null parameter, which will allow the 0%
torque value to be edited. Enter the number
corresponding to the 0% torque value that is
shown on the inside of the DCM-2 cover. Next,
select the Trq Const parameter, and enter the
number corresponding to the 100% torque
value that is shown on the inside of the DCM-2
cover. Online help is available through the
communication device.
DCM HART® INTERFACE Maintenance - Alarm Messages
COMMON HART® MESSAGES
HART® protocol maintains both standard and
device specific informational messages that are
displayed on the 275/375 Handheld Communicator
when various conditions occur. They can also
be used to trigger alarms and messages in other
HART® compatible monitoring systems. These
messages alert the user to various alarm conditions
and make it much easier to diagnose problems.
Below is a table of typical Beck drive messages
and message sequences. It does not include all
possible messages, only the most common.
Handswitch and Limit Switch Messages
Message
Description
“Motor power is blocked, check switches” This message will appear if a condition prevents current flow to
the motor. Some of the most common conditions are: The drive
Handswitch is put in the STOP position; either of the drive over-
travel limit switches are open; or the motor control triacs fail.
Demand Signal and Process Variable Messages
Message
Description
“Process applied to the non-primary
variable is outside the operating limits of
the field device”
“The Demand Signal is outside of the
intended limits (see Demand Setup
menu)”
“Demand out of accurate measurement
range”
This is a standard HART®-defined message that appears whenever
one of the three HART® non-primary variables (Demand signal,
Torque, Temperature) are outside their design or calibrated ranges.
The Demand input signal to the drive is typically the problem
source; however, the message can also appear if either the torque
measurement (optional) or temperature measurement is outside
the design or calibrated ranges. The Beck specific messages
below provide more descriptive information.
This is a Beck-specific message that can appear after the HART®-
defined message above. It specifically pinpoints the Demand
input signal to the DCM as the problem source, and indicates that
the signal is outside the calibrated range limits. The lower limit
is configurable as a percentage of the calibrated range (default
is -5%). The upper range is the highest readable input voltage
(5.5 VDC) expressed as a percentage of the calibrated range
(e.g., approximately 112% for a 4–20 mA* or 1–5 V dc standard
input range).
This is a Beck-specific message that can appear after the “Demand
signal out of range” message above. It further defines the demand
signal problem by indicating that the signal is not only out of the
calibrated range, but also out of the design range of the drive. The
lower and upper limits are 0.1 V dc and 5.55 V dc respectively.*
*Note that current input DCM boards utilize a 250 Ohm input resistor to convert the current signal to voltage.
DCM HART® INTERFACE Maintenance - Alarm Messages
Demand Signal and Process Variable Messages (con't)
Message
Description
“The Torque/Thrust is greater than the
output rating”
“Motor power has been removed due to
excessive output torque”
“The temperature is outside of –40F to
185F”
"Demand Signal is out of limit"
"Loop Current Detected while under
HART/FF Control"
"Loop Current Detected while set for LOS
PAT"
This is a Beck-specific message that can appear after the HART®-
defined (“Process applied to the non-primary variable is outside
the operating limits of the field device”) message mentioned
previously. It serves to further define the condition, and indicates
that the drive’s torque output is exceeding 105% of the calibrated
torque range of the drive.
This Beck-specific message appears after the “Torque is excessive”
message if the torque measurement has exceeded 150% of the
calibrated range and thus gone into a protective mode of operation
to prevent excessive torque in the event of an obstruction or
other problem. The drive ceases driving against the load until the
condition is reset. Although unlikely, it is possible to also get a
“Drive in stall” message (see misc. messages) with this message.
This is a Beck-specific message that can appear after the HART®-
defined (“Process applied to the non-primary variable is outside
the operating limits of the field device”) message mentioned
previously. It serves to further define the condition, and indicates
that the drive’s internal temperature is outside the -40° to 195°F
(-40º to 91ºC) range.
The Demand Signal has exceeded its measurable limits and has
entered saturation. The value reported for Demand does not
reflect the actual value.
This is a Beck specific alarm message that alerts the user that
analog current is present on the Demand terminals while operating
the drive using the HART configurator Manual Operation menu. It
is used to avoid confusion when a board is left in one of the manual
operation modes and is not properly restored to "FOLLOW" mode.
PAT mode (Proportional mode) is a special Demand mode where
discrete logic inputs are used in place of the Analog Demand
signal. When operating in PAT mode, no Demand current should
be present. If current is detected, this alarm will be asserted.
Position Signal Messages
(The position signal is defined as the signal from the position sensor (CPS) to the DCM-2)
Message
Description
“Process applied to the primary variable
is outside the operating limits of the field
device”
This is a standard HART®-defined message that appears
whenever the HART® primary variable (Position signal) is outside
the design or calibrated range. The DCM-2 is designed to accept
a maximum position signal range of 0.25 to 5.35 V dc, and can be
calibrated anywhere within this range depending on the type of
CPS and desired stroke of the drive. Normally, new drives would
be calibrated for a 1–5 V dc position signal. Retrofit applications
are typically calibrated for a 0.45–2.6 V dc range.
“Analog output 1 and its digital
representation are outside the operating
range limits, and not responding to input”
“The Position Signal is less than –5% or
greater than 105%”
“Position signal in LOS”
“Position out of accurate measurement
range”
This is an additional standard HART®-defined message that
appears whenever the HART® primary variable (Position signal)
is outside the design or calibrated range. It accompanies the
message above.
This is a Beck-specific message that appears after the HART®-
defined messages above. It specifically pinpoints the position
signal to the DCM as the problem source, and indicates that the
signal is outside the calibrated range limits. The upper and lower
limits are -5% and 105% of the calibrated range respectively.
This is a Beck-specific message that appears after the HART®-
defined messages above. It specifically pinpoints the position
signal to the DCM as the problem source, and is intended to
indicate a CPS or wiring failure. The message is triggered when
the position signal is outside the minimum and maximum limits
of 0.25 V dc and 5.35 V dc respectively. In this case, the LOS
message above will also be present.
This is a Beck-specific message that appears after the HART®-
defined messages previously mentioned. It specifically pinpoints
the position signal to the DCM as the problem source, and
indicates that the signal is outside the 0.25–5.35 V dc design
range. The LOS message above will also be present when this
message is present.
Miscellaneous Messages
Message
Description
“The Feedback Signal is enabled but the
loop is open”
“Stall condition has been detected (see
'Stall Time' in the 'General Setup' menu)”
"Feedback is in fixed mode"
This is a Beck-specific alarm message that alerts the user that
external position feedback signal is installed and enabled, but
not wired to an external load. If the signal is wired to an external
load and this message appears, it implies that a wiring failure
somewhere between the drive and the monitoring device has
occurred. If the DCM board is equipped with the feedback module,
but the signal is not being used, this message can be eliminated
by disabling the feedback in the configuration.
This is a Beck-specific alarm message alerting the user that the
drive is in a stalled condition and is no longer trying to fight the
load. This condition occurs if the drive cannot reach the demand
position in the ime allotted by the stall time setting (configurable
from 30–300 seconds, default 300 sec.). In drives equipped with
optional torque measurement, this message may not occur due
to the pre-emptive action of overtorque protection.
The "FB Out Test" diagnostic allows the user to set Feedback to
a fixed value, rather than the normal mode of having Feedback
follow the Position value. If the Feedback value is left in the "fixed"
mode, this error will be reported to alert the user that Feedback
is not following the Position value.
Message
Description
DCM HART® INTERFACE Maintenance - Troubleshooting
ELECTRO / MECHANICAL -- CHART 1
CHECK DRIVE
R / C NETWORK
PER TABLE 2,
PG. 68
CHECK SLM
FOR
WEAR
FROM
PAGE 55
GO TO
PAGE 53
GO TO
PAGE 53
DOES DRIVE
WORK PROPERLY
WITH THE
HANDSWITCH?
IS PROPER AC
POWER VOLTAGE
CONNECTED
ACROSS TERMI-
NAL C+ AND B-?
IS JUMPER FROM
TERMINAL A TO C
PRESENT AND
INTACT?
DOES IT WORK
PROPERLY CW?
DOES IT WORK
PROPERLY CCW?
GO BACK
TO
START
DOES MOTOR
APPEAR TO
ENERGIZE?
DOES MOTOR
APPEAR TO
ENERGIZE?
ARE THE R / C
COMPONENTS &
CONNECTIONS
OK?
DOES OUTPUT
SHAFT MOVE WITH
HANDSWITCH IN
“STOP”?
DOES DRIVE RUN
RANDOMLY AND/
OR ERRATICALLY?
DOES HAND-
WHEEL RUN
FREELY BUT DRIVE
WILL NOT
REPOSITION?
DOES HAND-
WHEEL SHUDDER
ABOUT ONE
POSITION?
IS BINDING OR
AN OBSTRUCTION
PRESENT?
CONSULT
FACTORY FOR
ASSISTANCE
REPLACE
AS
NECESSARY
REPAIR OR
REMOVE
OBSTRUCTION
REPLACE SLM
AS
NECESSARY
CONSULT
FACTORY
INSTALL
JUMPER
CONNECT
PROPER
POWER
START
CHECK
LINKAGE &
DRIVEN
ELEMENT
CHECK
SLM &
PINION
CALL
FACTORY
FOR
ASSIS-
TANCE
REPLACE
FAULTY
COMPO-
NENTS
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
B1
C1
A1
ON, IS THE AC
VOLTAGE ACROSS
DCM-H FUSE “F1”
ABOUT 0 V (SEE
FIG., PG.67)?
ARE JUMPERS
INSTALLED FROM
F TO N & D TO M?
ARE EITHER OF
THESE LEDs
LIT?
GO TO
CHART 2,
PG. 54
INSTALL
JUMPERS
DOES DRIVE RUN
AT ALL IN AUTO?
PLACE HAND-
SWITCH IN AUTO &
MODULATE
CONTROL SIGNAL
TO DRIVE
REMOVE
DCM COMPART-
MENT COVER AND
VIEW FWD & REV
LEDs (SEE FIG.,
PG.56)
REMOVE
CONTROL END
COVER TO CHECK
CW LIMIT
SWITCH
FROM
PAGE 52
FROM
PAGE 52
IS PROPER AC
POWER VOLTAGE
PRESENT ON CCW
LIMIT SWITCH RED
WIRE & TERM. B?
IS SUPPLY VOLT-
AGE ACROSS
TERMINAL C & B
BETWEEN
102 & 132 V AC?
IS PROPER AC
POWER VOLTAGE
PRESENT ON CW
LIMIT SWITCH GRN
WIRE & TERM. B?
IS RED WIRE
CONNECTED TO
THE CCW LIMIT
SWITCH NC
CONTACT?
IS GRN WIRE
CONNECTED TO
THE CW LIMIT
SWITCH NC
CONTACT?
CONSULT
FACTORY FOR
ASSISTANCE
CONSULT
FACTORY FOR
ASSISTANCE
CONSULT
FACTORY FOR
ASSISTANCE
REPLACE
HANDSWITCH,
SEE PG. 66
REPLACE
HANDSWITCH,
CHECK WIRING
APPLY
CORRECT
POWER
REPLACE CW
LIMIT SWITCH,
SEE PG. 65
REPLACE CCW
LIMIT SWITCH,
SEE PG. 65
MOVE
HANDSWITCH
TO THE CCW
POSITION
MOVE
HANDSWITCH
TO THE CW
POSITION
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
IS PROPER AC
POWER VOLTAGE
ACROSS
TERMINAL A & V?
IS PROPER AC
POWER VOLTAGE
ACROSS
TERMINAL A & U?
IS PROPER AC
VOLTAGE
PRESENT FROM
N TO B & M TO B?
IS PROPER AC
VOLTAGE
PRESENT FROM
V TO B & U TO B?
REMOVE
CONTROL END
COVER TO CHECK
CCW LIMIT
SWITCH
B1
C1
DCM HART® INTERFACE Maintenance - Troubleshooting
ELECTRONICS DIAGNOSTICS -- CHART 2
WILL BOARD
COMMUNICATE?
IS POWER (”PWR”)
LED LIT?
WILL DCM BOARD
COMMUNICATE?
ARE ANY HART
ERROR MESSAGES
DISPLAYED ON THE
COMMUNICATOR?
DOES THE DISPLAY-
ED “DEMAND” IN %
CORRESPOND TO
EXPECTED VALUE?
IS PROPER DC SIG-
NAL VOLTAGE PRES-
SENT ACROSS TER-
MINAL AA+, BB-?
IS PROPER DC
VOLTAGE
PRESENT?
DOES THE “RAW
POS” VOLTAGE
CORRESPOND TO
THE DRIVE POS?
DOES THE DRIVE
APPEAR TO
OSCILLATE ABOUT
A FIXED POINT?
DOES “LOOP (DEM)”
IN mA CORRESPOND
TO THE EXPECTED
DRIVE DEMAND
INPUT SIGNAL?
DOES THE DISPLAY-
ED “POSITION” IN %
CORRESPOND TO
EXPECTED DRIVE
POSITION IN %?
DOES COMMUNI-
CATOR DISPLAY
“NO DEVICE FOUND”
MESSAGE?
DO LEDs LIGHT
ALTERNATELY
WITH DRIVE
CYCLE?
IS PROPER
VOLTAGE PRESENT
(0-100% = 1-5 V)?
VIEW ALL
DYNAMIC INFOR-
MATION DISPLAYED
IN THE “ONLINE”
MENU
REMOVE
DCM COMPART-
MENT COVER TO
VIEW LEDs
CONNECT
HART COMMUNI-
CATOR & ESTABLISH
COMMUNICATIONS
GO TO THE
“DETAILED STATUS”
MENU UNDER DIAG-
NOSTICS AND VIEW
THE “RAW POS”
PARAMETER
GO TO THE
“DETAILED STATUS”
MENU AND VIEW
THE CW & CCW
“MOVEMENT
INHIBITORS"
PUT CON-
TROLLER IN
MANUAL MODE AND
CHECK THE HART
COMMUNICATOR
PER FIG, P.35
ANY PARAMETERS
THAT DISPLAY “ON”
STATUS INDICATE
THAT IT IS PREVENT-
ING THE DRIVE
FROM MOVING --
READ PARAMETERS
AND ACT ACCORD-
INGLY
CALL FACTORY FOR
ASSISTANCE
SET TO “ALWAYS
POLL” SEE PG.29
CHECK DRIVE DE-
MAND CALIBRATION
& RECALIBRATE IF
NECESSARY
REMOVE
COMPART-
MENT COVER AND
VIEW “FWD” &
“REV” LEDs
DCM
CHECK FOR
SOURCES OF
SIGNAL NOISE
AND CORRECT
REPLACE
SLM
CHECK POSITION
CALIBRATION AND
RECALIBRATE IF
NECESSARY
REPLACE CPS
CALL FACTORY
FOR ASSISTANCE
CHECK/REPAIR CON-
TROLLER OR SIGNAL
SOURCE & WIRING
CHECK VOLTAGE AT
TEST POINTS
TP2(+) & TP1(-)
SEE FIG, P.67
DCM
CHECK VOLTAGE AT
DCM TEST POINTS
TP4(+) & TP1(-)
SEE FIG, P.67
CALL FACTORY
REPLACE DCM
CONSULT
FACTORY
REPLACE DCM
BOARD
A2
A2
B2
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
NO
FROM
PAGE 65
WILL BOARD
COMMUNICATE?
IS POWER (”PWR”)
LED LIT?
WILL DCM BOARD
COMMUNICATE?
HAS ERROR BEEN
ELIMINATED?
ARE ANY HART
ERROR MESSAGES
DISPLAYED ON THE
COMMUNICATOR?
DOES THE DISPLAY-
ED “DEMAND” IN %
CORRESPOND TO
EXPECTED VALUE?
IS PROPER DC SIG-
NAL VOLTAGE PRES-
SENT ACROSS TER-
MINAL AA+, BB-?
IS PROPER DC
VOLTAGE
PRESENT?
DOES THE “RAW
POS” VOLTAGE
CORRESPOND TO
THE DRIVE POS?
DOES THE DRIVE
APPEAR TO
OSCILLATE ABOUT
A FIXED POINT?
DOES “LOOP (DEM)”
IN mA CORRESPOND
TO THE EXPECTED
DRIVE DEMAND
INPUT SIGNAL?
DOES THE DISPLAY-
ED “POSITION” IN %
CORRESPOND TO
EXPECTED DRIVE
POSITION IN %?
DOES COMMUNI-
CATOR DISPLAY
“NO DEVICE FOUND”
MESSAGE?
DO LEDs LIGHT
ALTERNATELY
WITH DRIVE
CYCLE?
IS PROPER
VOLTAGE PRESENT
(0-100% = 1-5 V)?
VIEW ALL
DYNAMIC INFOR-
MATION DISPLAYED
IN THE “ONLINE”
MENU
REMOVE
DCM COMPART-
MENT COVER TO
VIEW LEDs
CONNECT
HART COMMUNI-
CATOR & ESTABLISH
COMMUNICATIONS
GO TO THE
“DETAILED STATUS”
MENU UNDER DIAG-
NOSTICS AND VIEW
THE “RAW POS”
PARAMETER
GO TO THE
“DETAILED STATUS”
MENU AND VIEW
THE CW & CCW
“MOVEMENT
INHIBITORS"
PUT CON-
TROLLER IN
MANUAL MODE AND
CHECK THE HART
COMMUNICATOR
PER FIG, P.35
INDICATES THAT
THE DEMAND SIG-
NAL TO THE DRIVE
IS OUTSIDE THE
CALIBRATED RANGE
OR LOST
-- VERIFY SIGNAL
-- CHECK DEMAND
CAL
-- RECAL. DEMAND
IF NECESSARY
ANY PARAMETERS
THAT DISPLAY “ON”
STATUS INDICATE
THAT IT IS PREVENT-
ING THE DRIVE
FROM MOVING --
READ PARAMETERS
AND ACT ACCORD-
INGLY
CALL FACTORY FOR
ASSISTANCE
SET TO “ALWAYS
POLL” SEE PG.36
CHECK DRIVE DE-
MAND CALIBRATION
& RECALIBRATE IF
NECESSARY
REMOVE
COMPART-
MENT COVER AND
VIEW “FWD” &
“REV” LEDs
DCM
CHECK FOR
SOURCES OF
SIGNAL NOISE
AND CORRECT
REPLACE
SLM
CHECK POSITION
CALIBRATION AND
RECALIBRATE IF
NECESSARY
REPLACE CPS
CALL FACTORY
FOR ASSISTANCE
CHECK/REPAIR CON-
TROLLER OR SIGNAL
SOURCE & WIRING
CHECK VOLTAGE AT
TEST POINTS
TP2(+) & TP1(-)
SEE FIG, P.78
DCM
CHECK VOLTAGE AT
DCM TEST POINTS
TP4(+) & TP1(-)
SEE FIG, P.78
CALL FACTORY
REPLACE DCM
CONSULT
FACTORY
REPLACE DCM
BOARD
DEMAND SIGNAL
OUT OF RANGE
NEXT
PREV
DISPLAY
A2
A2
B2
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
NO
NO
FROM
PAGE 65
HAS ERROR BEEN
ELMINATED?
IS “BAD POS SIG”
PARAMETER “ON”?
HAS ERROR BEEN
ELIMINATED?
REVIEW THE
MESSAGES
PRESS
NEXT
USING
THE NEXT KEY
PAGE THROUGH
ADDITIONAL
MESSAGES
GO TO THE
“DETAILED STATUS”
MENU AND VIEW
THE CW & CCW
“MOVEMENT
INHIBITORS"
THIS MESSAGE INDI-
CATES THE DRIVE
HAS SHUT DOWN
AS A RESULT OF A
STALL CONDITION
OF DURATION
LONGER THAN THE
SET STALL TIME
PARAMETER. IF A
STALLING PROBLEM
EXISTS, IT SHOULD
HAVE BEEN FOUND
ON CHART 1.
A NUMBER OF ADDI-
TIONAL MESSAGES
WILL BE PRESENT
THAT INDICATE AN
OUT OF RANGE OR
ABSENT POSITION
SIGNAL FROM THE
CPS TO THE DCM.
THE LIKELY CAUSE
IS A CPS FAILURE.
THIS MESSAGE INDI-
CATES THAT AN
OPEN CIRCUIT IS
PREVENTING CUR-
RENT FROM DRIVING
THE MOTOR. THE
HANDSWITCH IN
STOP-OR AN OPEN
LIMIT SWITCH-WILL
CAUSE THIS MSG,
BUT SO WILL AN
DCM TRIAC FAIL-
URE.
-- VERIFY HAND-
SWITCH IN AUTO
-- VERIFY LIMIT
SWITCHES ARE
CLOSED
INDICATES THAT
THE DEMAND SIG-
NAL TO THE DRIVE
IS OUTSIDE THE
CALIBRATED RANGE
OR LOST
-- VERIFY SIGNAL
-- CHECK DEMAND
CAL
-- RECAL. DEMAND
IF NECESSARY
DRIVE IS IN STALL
CALL FACTORY IF
DRIVE STILL DOES
NOT OPERATE
CORRECTLY
CALL FACTORY IF
DRIVE STILL DOES
NOT OPERATE
CORRECTLY
CALL FACTORY
PERFORM BOARD
RESET
REPLACE DCM
OR
OR
REPLACE DCM
BOARD
REPLACE
CPS-2
NEXT
PROCESS APPLIED
TO THE PRIMARY
VARIABLE IS OUT-
SIDE THE OPER-
ATING LIMITS OF
THE FIELD DEVICE
NEXT
DISPLAY
PROCESS APPLIED
TO THE NON-PRI-
MARY VARIABLE IS
OUTSIDE THE OPER-
ATING LIMITS OF
THE FIELD DEVICE
NEXT
DISPLAY
DISPLAY
H/S IN STOP OR
DRIVE IS AT LIMIT
NEXT
DISPLAY
DEMAND SIGNAL
OUT OF RANGE
NEXT
PREV
DISPLAY
A1
B2
GO TO
PAGE 52
GO TO
PAGE 54
YES
NO
YES
NO
NO
YES
ADDITIONAL ERROR MESSAGES AND WARNINGS MAY BE DISPLAYED
ON THE HART COMMUNICATOR. THOSE NOT MENTIONED HERE
ARE EITHER REDUNDANT OR NOT RELATED TO ERRORS THAT PREVENT
THE DRIVE FROM RESPONDING & POSITIONING CORRECTLY; MOST ARE
DESCRIPTIVE AND ARE DISCUSSED UNDER THE APPROPRIATE SECTION
ELSEWHERE IN THIS MANUAL.
NOTE:
HAS ERROR BEEN
ELMINATED?
IS “BAD POS SIG”
PARAMETER “ON”?
HAS ERROR BEEN
ELIMINATED?
REVIEW THE
MESSAGES
PRESS
NEXT
USING
THE NEXT KEY
PAGE THROUGH
ADDITIONAL
MESSAGES
GO TO THE
“DETAILED STATUS”
MENU AND VIEW
THE CW & CCW
“MOVEMENT
INHIBITORS"
THIS MESSAGE INDI-
CATES THE DRIVE
HAS SHUT DOWN
AS A RESULT OF A
STALL CONDITION
OF DURATION
LONGER THAN THE
SET STALL TIME
PARAMETER. IF A
STALLING PROBLEM
EXISTS, IT SHOULD
HAVE BEEN FOUND
ON CHART 1.
A NUMBER OF ADDI-
TIONAL MESSAGES
WILL BE PRESENT
THAT INDICATE AN
OUT OF RANGE OR
ABSENT POSITION
SIGNAL FROM THE
CPS TO THE DCM.
THE LIKELY CAUSE
IS A CPS FAILURE.
THIS MESSAGE INDI-
CATES THAT AN
OPEN CIRCUIT IS
PREVENTING CUR-
RENT FROM DRIVING
THE MOTOR. THE
HANDSWITCH IN
STOP-OR AN OPEN
LIMIT SWITCH-WILL
CAUSE THIS MSG,
BUT SO WILL AN
DCM TRIAC FAIL-
URE.
-- VERIFY HAND-
SWITCH IN AUTO
-- VERIFY LIMIT
SWITCHES ARE
CLOSED
INDICATES THAT
DRIVE TORQUE OUT-
PUT IS GREATER
THAN 150% OF THE
DRIVE RATING AND
OVERTORQUE PRO-
TECTION IS
ENABLED.
-- CHECK FOR BIND-
ING OR EXCESSIVE
LOADS
-- CHECK LINKAGE
SETUP
-- CORRECT AS
NECESSARY
-- CHECK TORQUE
CAL.
-- RECAL. IF NEC.
DRIVE IS IN STALL
CALL FACTORY IF
DRIVE STILL DOES
NOT OPERATE
CORRECTLY
CALL FACTORY IF
DRIVE STILL DOES
NOT OPERATE
CORRECTLY
CALL FACTORY
PERFORM BOARD
RESET
REPLACE DCM
OR
OR
REPLACE DCM
BOARD
REPLACE
CPS-2
NEXT
PROCESS APPLIED
TO THE PRIMARY
VARIABLE IS OUT-
SIDE THE OPER-
ATING LIMITS OF
THE FIELD DEVICE
NEXT
DISPLAY
PROCESS APPLIED
TO THE NON-PRI-
MARY VARIABLE IS
OUTSIDE THE OPER-
ATING LIMITS OF
THE FIELD DEVICE
NEXT
DISPLAY
DISPLAY
H/S IN STOP OR
DRIVE IS AT LIMIT
NEXT
DISPLAY
TORQUE IS EXCES-
SIVE
NEXT
PREV
DISPLAY
A1
B2
GO TO
PAGE 62
GO TO
PAGE 64
YES
NO
YES
NO
NO
YES
ADDITIONAL ERROR MESSAGES AND WARNINGS MAY BE DISPLAYED
ON THE HART COMMUNICATOR. THOSE NOT MENTIONED HERE
ARE EITHER REDUNDANT OR NOT RELATED TO ERRORS THAT PREVENT
THE DRIVE FROM RESPONDING & POSITIONING CORRECTLY; MOST ARE
DESCRIPTIVE AND ARE DISCUSSED UNDER THE APPROPRIATE SECTION
ELSEWHERE IN THIS MANUAL.
NOTE:
DCM SERIAL INTERFACE Setup
COMMUNICATIONS
The Beck Digital Control Module (DCM) is
equipped with a serial interface which allows for
direct communication with a computer. Using
a communication cable, connect the DCM to
the computer using the DCM’s RS-232 (J20)
connector (see illustration on this page) and the
computer’s COM port. Ensure that the COM port
on the computer is active, and that the cable is
plugged into the proper COM port if more than one
is present (e.g., COM1, COM2, etc.). Note that a
plug end adapter may be necessary for connection
to the computer’s COM port.
Once connected, communication can be
established between the DCM and the computer
using a terminal emulation program, such as
HyperTerminal®. This method of communication
will allow for configuration, calibration and
verification of drive DCM settings without the use
of custom software applications.
HyperTerminal® Software
HyperTerminal is the standard ASCII terminal
emulation software provided with Microsoft®
Windows®. If using HyperTerminal®, the following
instructions will assist in setup. Note that some
variation to these instructions may be necessary
depending on the version of HyperTerminal® being
used.
Once the computer has been connected to the
DCM, access HyperTerminal® by clicking first on
"Start", then "Programs", then "Accessories", then
"Communications", then "HyperTerminal".
Double-click on the "Hypertrm.exe" icon to start
the program. Once HyperTerminal® is running, it is
necessary to set up a file with the proper settings to
communicate with the DCM. Proceed as follows:
1. If prompted to install a modem, answer "no".
Proceed to enter a name (e.g., "DCM") and
select an icon (any will suffice) in the "Connection
Description" box. Click the "OK" button.
2. The "Connect to" box should open next. At
the bottom of the box, set the "Connect using"
selection to the computer COM port that has
been connected to the DCM. Click the "OK"
button.
3. The COM port properties box should open next.
This is where the communication settings are
established. The correct settings are:
a. Bits per second = "1200"
b. Data bits = "8"
c. Parity = "none"
d. Stop bits = "1"
e. Flow control = "none"
4. With the appropriate settings entered from Step
3, above, click "OK". Communications should
now be enabled.
5. Press the "Enter" key twice. "Ok" should be
displayed indicating that HyperTerminal® is
communicating with the DCM.
RS-232
CONNECTOR
Hyperterminal® is a product of Hilgraeve, Inc.
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
ACKNOWLEDGE
TEMP F
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
DCM SERIAL INTERFACE Commands
COMMANDS AND ARGUMENTS
Commands can be used for a variety of functions
including changing the operating configuration of
the drive, verifying operation settings, calibration
and accessing diagnostic information. There are
essentially four different types of commands:
1. Dual-purpose commands. These
commands can be used to either modify
drive configuration settings or display the
settings already set in the drive. In order
to set or make a change to the settings,
the command requires an argument (n). If
the command is used for display purposes
only, the argument is omitted. Examples of
these commands include "dead band" and
"demlos".
2. Display only commands. These commands
are used to display diagnostic or operating
information like present signal values. No
arguments are required. Examples include
the "stat" command and the "signals"
command.
3. Set only commands. These commands
serve only to make a parameter change.
Typically, they apply to the drive calibration.
This type of command requires an argument,
but unlike dual-purpose commands, they
return an error message when entered
without an argument. Examples include the
"demis" and "posis" commands.
4. Execute action commands. These
commands serve to reset, enable or disable
features and do not require an argument.
Entering these commands produces an
immediate action. Examples include the
"revert" and "torqen" command.
The available commands are listed at right
and each is described in more detail on pages 58
through 61. The command description explains the
use or uses of the command, while the argument
column describes the applicable arguments
for those commands that require them. In the
command tables, arguments are denoted as n.
Note that the commands described as "sets and/or
displays" signify dual purpose commands that can
be used with or without an argument for setting or
verifying configuration settings.
SERIAL COMMANDS
General Configuration Commands (p. 58)
stepsize
drvdir
stalltime
sernum
Reset Factory Settings Commands (p. 58)
restoremodes
harttype
Demand Signal Commands (p. 58 & 59)
dem0pctma
dem100pctma
trimdem4ma
trimdem20ma
demfunc
demlos
demlosgtp
Position & Feedback Signal Commands (p. 60)
posisd
psisp
fdbk0pctma
fdbk100pctma
trimfdbk4ma
trimfdbk20ma
fdbkfunc
travel
Torque Sensing Commands (p. 60 & 61)
torq0k
torqconst
torq0pct
torq100pct
torqenable
Diagnostic and Information Commands (p. 61)
signals
stat
tempf
torque
The following is a list of serial commands
available through the RS-232 interface. Error
codes associated with these commands are listed
on page 62.
DCM SERIAL INTERFACE Commands
Note: For specific information on the following functions, see the HART interface section of the manual.
Command
stepsize n
drvdir n
stalltime n
sernum n
Description
Sets and/or displays the size (in
degrees) of one incremental movement
of the output shaft.
Sets and/or displays the drive output
shaft direction resulting from an
increasing Demand signal.
Sets and/or displays the time allowed
for the drive to reach its Demand target.
If the drive cannot reach the target in
the allotted time, a stall condition is
initiated.
Sets the serial number of the drive in
which the DCM is installed. Model
number information is derived from the
serial number.
Argument n and Information
n = stepsize in degrees. The minimum
value that can be entered is "0.10";
which is also the standard value. The
maximum value is "2.50".
n = "0" (indicates Extend); or
n = "1" (indicates Retract).
n = time in seconds. Time to stall is
configurable from 30 to 300 seconds.
The default value is 300 seconds.
n = serial number.
General Configuration Commands
Command
restoremodes 1
harttype n
Description
Resets the drive configuration back to
the original factory settings.
Sets and/or displays the DCM HART
device type.
Argument n and Information
No additional argument required.
n = "1" (ESR-D);
n = "10" (DCM); or
n = "239" (BECK-MK2)
Reset Factory Settings Commands
Command
dem0pctma n
Description
Sets the Demand signal value that
corresponds to 0% drive position.
Argument n and Information
n = the Demand signal as a
decimal in milliamps. The minimum
acceptable value is 0.50 mA. The
maximum acceptable value is 100%
Demand less 4.00 mA. For example,
if the 100% Demand signal is 20.00
mA, then the 0% Demand signal
must be 16.00 mA or less.
Demand Signal Commands
Sets the Demand signal value that
corresponds to 100% drive position.
Calibrates the Demand signal at 4 mA. This
command should only be used when the
Demand signal at the drive is 4 mA. If the
Demand signal at the drive is greater or less
than 4 mA, an error will be returned. Note:
This parameter is factory configured and
normally does not require recalibration.
Calibrates the Demand signal at 20 mA.
This command should only be used when
the Demand signal at the drive is 20 mA. If
the Demand signal at the drive is greater or
less than 20 mA, an error will be returned.
Note: This parameter is factory configured
and normally does not require recalibration.
Sets and/or displays the Demand signal
input characterization function. The DCM
provides linear, square root, special curve or
square function characterization.
Sets and/or displays the Demand signal
threshold below which the DCM recognizes
that the signal is lost. The threshold is
entered as a value in mA. This command
also sets and/or displays the action initiated
by the drive during LOS (Loss Of Signal).
LOS action options are "sip" (stay in place) or
"gtp" (go to position). Note that the command
always reports both settings, but only sets
one argument at a time. The command must
be used twice to set the threshold and action.
If the action is "gtp", then the command
demlosgtp (see below) must also be set.
The option "pat" is also available to prevent
error messages if the DCM is not being used
with a Demand signal.
Sets and/or displays the position to which
the drive will run upon loss of the Demand
signal (LOS). This command has no effect if
the drive is set to "sip" (stay in place).
Argument n and Information
n = the Demand signal as a
decimal in milliamps. The minimum
acceptable value is the Demand at
0% plus 4.00 mA. For example, if the
0% Demand signal is 4.00 mA, then
the 100% Demand signal must be
8.00 mA or greater. The maximum
acceptable value is 21.00 mA.
A 4 mA Demand signal must be
present at drive terminals 14 & 15.
A 20 mA Demand signal must be
present at drive terminals 14 & 15.
n = "0" (linear)
n = "1" (square root)
n = "4" (special curve)
n = "5" (square).
n = the Demand signal in mA below
which LOS occurs. For example, in a
4–20 mA drive, if the desired LOS is
5% below the minimum signal, then
n = "3.20" mA.
— OR —
n = "sip", "gtp" or "pat".
Note: n values must be set
separately.
n = the desired position of the drive
expressed as a percentage of drive
travel (e.g., if the desired LOS
position is 50%, then n = "50.00").
DCM SERIAL INTERFACE Commands
Note: For specific information on the following functions, see the HART interface section of the manual.
Command
travel n
fdbk0pctma n
fdbk100pctma n
fdbkfunc n
posis n
trimfdbk4ma n
trimfdbk20ma n
Description
Sets and/or displays the value that
represents 100% travel.
Sets and/or displays the mA value of the
Feedback signal that represents the 0%
drive position.
Sets and/or displays the mA value of
the Feedback signal that represents the
100% drive position.
Sets and/or displays whether or not the
drive Feedback signal is enabled.
Sets the point of drive travel in relation
to the drive's current position. This
command should only be used when the
drive is at a known position of travel.
Trims the Feedback signal at 4 mA. If the
Feedback signal is not within 1 mA of 4
mA, an error will be returned. Note: The
Feeback sourcing circuit is factory calibrated
and normally does not require recalibration.
Trims the Feedback signal at 20 mA. If the
Feedback signal is not within 1 mA of 20
mA, an error will be returned. Note: The
Feeback sourcing circuit is factory calibrated
and normally does not require recalibration.
Argument n and Information
n = the desired length of travel in
degrees.
n = the desired Feedback signal for
0% drive position in mA. The minimum
value is 3 mA ("3.00") and the maximum
value is at least 4 mA less than the
Feedback signal value for the 100%
drive position.
n = the desired Feeback signal for 100%
drive position in mA. The minimum
value must be at least 4 mA greater
than the Feedback signal value for the
0% drive position. The maximum value
is 21mA ("21.00").
n = "0" (no feedback) or "1" (feedback).
n = the present drive position as a
degree of full drive travel to establish
where the 0% point of travel should be.
n = the present Feedback signal
from the drive as measured in mA at
terminals 16 & 17. The minimum value
is 3 mA ("3.000") and the maximum
value is 5 mA ("5.000").
n = the present Feedback signal
from the drive as measured in mA at
terminals 16 & 17. The minimum value
is 19 mA ("19.000") and the maximum
value is 21 mA ("21.000").
Position and Feedback Signal Commands
Command
torq0k n
Description
Assigns the count value to be
associated with 0 torque. This number
is unique to each drive.
Torque Sensing Commands
Assigns the count value to be
associated with the torque span. This
number is unique to each drive.
Enables or disables the torque
measurement feature of the drive.
Argument n and Information
n = the torque span value in counts.
This number is determined during
manufacture and is noted on a tag
affixed to the drive body within the
electronics compartment.
n = "0" (disabled) or "1" (enabled).
Torque Sensing Commands (con't)
Command
signals
stat
tempf
torq
Description
Displays the present Position signal
of the drive in volts and the Demand
signal in milliamps.
Displays information on the status of
the drive, including:
Time / Date
Demand (% and settings)
Position (% / inches)
Error (%)
Stepsize (inches / %)
Deadband (inches / %)
Motor Status
Run Time
Line Frequency
Starts (ext./ret./total)
Reversals/Stalls
Overloads
Positive & Negative Peak Load (%)
Positive & Negative Peak Torque
(% / inches)
Extend and Retract Inhibit Setting
Alarms
Displays measured temperatures in the
drive (°F.):
Low extreme
Present temperature
High extreme
Displays the drive's present torque
measurement as a percentage of rated
torque.
Argument n and Information
No argument.
No argument.
No argument.
No argument.
Diagnostic and Information Commands
DCM SERIAL INTERFACE Command Error Codes
Code
2
3
4
5
6
9
10
14
32
64
Description
Invalid selection
Value too big
Value too small
Data length error
General error
Process too high
Process too low
Span too small
Busy
Not implemented
Information
Displayed when an unknown command
has been entered.
Displayed when an entered numeric
value exceeds expected parameters.
Displayed when an entered numeric
value is less than expected parameters.
Displayed when the wrong number of
arguments is entered.
Displayed when a combination of
circumstances prevents a better
description of the error.
Displayed when the entered value
exceeds acceptable parameters when
calibrating a 0% value.
Displayed when the entered value is
less than acceptable parameters when
calibrating a 100% value.
Displayed when entered values for a 0%
point and a 100% point are too close.
Displayed when a memory store is
requested and another memory store is
already in process.
Displayed when an entered command is
defined, but cannot be implemented.
Command Error Codes
When an error is encountered using the serial commands, an "ERROR XX" message is returned. The
table below provides a description of the error codes ("XX").
The Beck 11-439 drive requires only minimal
routine maintenance. Periodic lubrication of the
gearing is recommended to extend gear life. Pe-
riodic visual inspections are recommended to ver-
ify that the connection to the final control element
is intact and operating normally. If vibration is
present, check the electrical terminal connections
and other hardware for tightness. Inspections of
body mounting bolts and crank arm linkages are
also recommended to ensure the drive elements
are secure and operating normally.
LUBRICATION
It is recommended that during major outages,
drives be inspected to determine the need to
relubricate the drive gear train. It is also recom-
mended that the linkage rod ends be lubricated at
this time to extend life.
CAUTION
Before removing the 11-439 from the gear re-
duction unit, block the crank arm to prevent
the crank arm and the gear train from moving
when the 11-439 is removed.
Remove the assembly gear module. Remove
the gears from their shafts and clean them thor-
oughly, removing all old lubrication.
Examine the gear teeth, shaft bore, and gear
shafts for signs of excessive wear, scoring, or
other damage. If evidence of this damage is
present, the drive should be returned to the
factory for a detailed examination of the main
gear, which requires complete disassembly of
the drive. See "HOW TO OBTAIN SERVICE" on
page 71.
If there is no evidence of damage to the gear-
ing, recoat the teeth and shaft bores of all gears
with a heavy layer of Fiske Lubriplate GR-132 or
equivalent (GR-132 is an E.P. grease with poly-
mer additives). The ball bearing on the output
shaft and crown gear shaft have double grease
seals and require no maintenance for the life
of the bearings. Inspect all grease seals and
replace any that show wear. Reassemble the
drive.
To inspect the gears on the gear reduction
unit, remove the gear inspection plug (see photo
below for location). If possible, move the output
shaft to the full CW or CCW limit of travel. This
will expose the gear teeth in use on the output
gear. Turn the Handswitch to the STOP position.
Recoat the gear teeth with a heavy layer of Fiske
Lubriplate GR-132 or equivalent. Replace the
gear inspection plug.
GEAR INSPECTION
PLUG
MAINTENANCE COMPONENT REPLACEMENT
This section covers replacement of many
components of the 11-439 drive. Note that some
components are not field repairable.
If it should ever be necessary to replace the
output gear, shaft, or output shaft bearings, a
major overhaul is required and the drive should
be returned to the factory.
GASKETS
During routine service, inspect the cover, mo-
tor, and change gear plate gaskets for wear or
damage. In order to protect internal components,
worn or damaged gaskets should be replaced.
To remove, scrape all of the old adhesive and
gasket material from the body housing and cover.
Cement the new gasket to the drive body using
a gasket cement such as 3M #847 Rubber and
Gasket Adhesive, or equivalent.
The gasket between the body halves should
be replaced if the body halves are taken apart.
No cement is used on this gasket. Trim the
outside edges of the gasket after assembly as
required.
SEALS
Under normal service, seals should last for
the life of the drive. If seals should become worn
or damaged, however, they should be replaced.
Contact the factory for assistance.
BEARINGS
Under normal service, bearings should last
for the life of the drive. If bearings should be-
come worn or damaged, however, they should be
replaced. Contact the factory for assistance.
MOTOR
The control motor is not field-repairable.
Dis assembly of the motor will result in a loss of
torque that can only be restored by returning the
motor to the factory for remagnetizing.
CAUTION
Disconnect line voltage. Before removing
the control motor, block the control drive
crank arm to prevent the crank arm and the
gear train from moving when the motor is
removed. Also, disconnect line voltage from
drive.
To remove the motor, first disconnect the
motor wires in the terminal compartment of the
control drive. The wiring is under the terminal
board. Remove the terminal block and plate as
an assembly. Remove the black wire from the
terminal post, cut the green motor wire near the
green-yellow-red butt joint and disconnect the
red wire from the motor capacitor. Remove the
mounting bolts and motor. Carefully slide the
motor out of the drive body.
To install the motor, insert the three-wire
sleeve through the wire hole in the motor mount
and into the terminal compartment. Carefully
slide the motor into the drive body, rotate the mo-
tor shaft if necessary to engage the pinion with
the first combination gear. Install motor mounting
bolts and torque to 16 lb-ft. Reconnect the motor
wires.
See the following section for reinstalling the
terminal plate.
Motor Resistor and Capacitor
CAUTION
Disconnect line voltage before replacing
motor resistor and / or capacitor.
The motor resistor and capacitor are located
under the terminals in the terminal compartment.
To replace a resistor or capacitor, remove the
terminal cover. Remove the terminal plate. Re-
move the existing part and transfer the wires one
at a time to the replacement part. Inspect the ter-
minal plate gasket and replace if necessary. To
ensure a watertight seal between the plate and
gasket, coat the gasket with a thin film of grease
before replacing the terminal plate. Torque the
screws to 3 Ib-ft.
OVER-TRAVEL LIMIT AND
AUxILIARY SWITCHES
CAUTION
Do not replace switches until the drive is
disconnected from line voltage and auxiliary
switches are disconnected from external
power sources.
Complete switch assemblies may be re-
placed. It is not possible to replace individual
switches. To replace switch assemblies, remove
the control end cover (1/2” bolt heads) and exten-
sions, if applicable. Remove the screws holding
the switch assembly to the plate and slide it out to
the side.
Transfer the wires one at a time to the re-
placement assembly using the push-on lugs
provided. Install the replacement assembly and
note that it rotates around one screw to permit
an adjustment of the cam-to-switch lever spacing
and switch operating point. To properly set the
switch, use a .030” shim between the cam and
switch lever and loosely position the switch as-
sembly so that the switch is just actuated. The
switch lever should be on the low or minimum
radius portion of the cam when setting the switch-
es. DO NOT overstress the switch lever. Tighten
both screws to 10 Ib-in torque and remove the
shim. When properly adjusted, the switch lever
should remain in contact with the cam throughout
the control drive travel.
Adding Switches
It is usually possible to add switches to a
control drive in the field. Remove the control
end cover (1/2” bolt heads) and extensions, if ap-
plicable. If the drive has no auxiliary switches, it
is possible to add up to four more switches.
Install wiring onto the switch push-on lugs
and route the wires into the control drive termi-
nal area. Remove the terminal cover and solder
wires to the underside of the terminal assembly
according to the wiring diagram included with the
new switch assembly. Install the new switch as-
sembly and adjust according to the preceeding
instructions. See Table 1, page 68, for switch
part numbers.
SELF-LOCKING MECHANISM
(SLM)
In normal service, the SLM will last for many
years. Accelerated wear is possible, however, in
any drive operating near its rated torque and with
a frequency of operation greater than one per
minute on a 24 hour schedule.
If the drive fails to hold the load, it may be
indicative of damaged SLM components. Order
the SLM Rebuild Kit (part no. 12-8060-13) and
follow the instructions provided.
The SLM Rebuild Kit consists of spring, spring
pin, thrust bearing, pinion, steel balls, locking
disc, steel shims, control motor gasket, terminal
joints, slip-on terminals and instruction sheet.
See the illustration below to identify the com-
ponents of the SLM.
Motors 20-2201-32 & -33
Before replacing the Handswitch, ensure
that the drive is disconnected from the line
voltage and that all external power sources
are also disconnected.
To replace the Handswitch, remove the ter-
minal cover, and then remove the terminal plate.
Clip the five wires from the old Handswitch. Re-
move the knob and the nut under the knob to
remove the switch. Install the new Handswitch
as shown below. Splice the wires color for color.
Inspect the terminal plate gasket and replace if
necessary. To ensure a watertight seal between
the plate and the gasket, coat the gasket with
a thin film of grease before replacing the termi-
nal plate. Torque the screws to 3 Ib-ft. Do not
over-torque. Replace the terminal cover. Torque
bolts to 10 Ib-ft.
NOTE: When the Handswitch is turned fully
clockwise, “AUTO” should be indicated.
DCM BOARD
CAUTION
To prevent Electro-Static Discharge damage
to the electronics, wear a grounding strap
during this procedure.
Field service of the DCM board is not recom-
mended. The factory maintains a stock of re-
placement boards for immediate shipment. To
replace the DCM board, remove the Digital Con-
trol Module compartment cover (1/2" bolt heads).
If applicable, disconnect the torque sensing
wires from the bottom of the customer interface
panel by gently pulling on the connector. Loosen
the four captive screws holding the board to its
mounting pads. Note the “L” shaped mounting
bracket on the end of the board. To remove the
board, pull the mounting bracket away from its
mating surface. See illustration below.
MAINTENANCE COMPONENT REPLACEMENT
To install a DCM board, lightly press the board
connector into its receptacle until the mounting
bracket is flush with its mating surface. Tighten
the four captive screws to 8 lb-in. If applicable,
connect the torque sensing wires to the bottom of
the customer interface panel by gently pressing the
connector into its receptacle. Replace the com-
partment cover. Torque cover bolts to 10 lb-ft.
CPS-2
Field repair of the CPS-2 assembly is not
recom mended. The factory maintains a stock of
re placement assemblies for immediate shipment.
If it is necessary to replace the CPS-2, replace
both the rotor and stator / circuit board assem-
bly. When returning the CPS-2 to the factory
for service, include the rotor and stator / circuit
board assembly. Do not separate the stator or
circuit boards from their mounting plates. The
rotor should be held inside the stator with rubber
bands for protection during shipment.
To remove the CPS-2:
1. Run the control drive to its midpoint of travel
with the local Handswitch. (If the standard
rotation of 100° has been reduced to 80°, the
midpoint of travel is 40°.)
2. Disconnect 120 V ac power to the drive. Re-
move the terminal, DCM compartment and
control end covers (1/2" bolt heads).
3. Record the wire colors on the terminal block
of the CPS-2 (see illustration at right), then
disconnect the wires. The terminals are
spring-loaded. To remove a wire, press the
tip of a 3/32” screwdriver into the slot at the
top of the small lever. Push down to open the
spring-loaded contact and release the wire.
4. Pull the wires from the transformer (see illus-
tration at right) back through the wire hole in
the CPS-2.
5. Loosen and remove the 3 hex studs that
clamp the CPS-2 in place. Ensure that the
inboard hex stud is not loosened as the out-
board stud is loosened.
6. Slide the CPS-2 stator assembly off the three
mounting bolts.
7. Note the position of the rotor clamp, then
loosen the rotor clamp screw and remove the
rotor from the shaft.
To install the new CPS-2:
1. Remove the rotor from the replacement
CPS-2 assembly. Slide the rotor, clamp end
first, onto the control shaft as close to the
mounting plate as possible. Leave the clamp
loose. Position the clamp in the same gen-
eral location as the one removed previously.
2. Slide the new CPS-2 assembly over the studs
and rotor. Replace the hex nuts but do not
tighten. Carefully slide the rotor back into the
CPS-2 assembly. Twist the rotor while sliding
to prevent damage to the assembly. Tighten
hex nuts to 5 Ib-ft.
3. Thread the wires through the wire holes in the
CPS-2 and reconnect them to the transformer
and terminal block.
4. Restore 120 V ac power to the drive and con-
nect a meter to the output.
5. Insert a 0.031" feeler gauge between the rotor
clamp and stator. Position the clamp 0.031"
from the stator.
6. Rotate the rotor (only a minor adjustment
should be necessary) on the control shaft un-
til the output voltage measured across DCM
test points TP4 and TP1 (see illustration at
right) reads 50% (approx. 3 volts) of the sig-
nal span. Tighten clamp to 5 lb-in torque.
7. Perform a position calibration procedure as
described on page 22 or page 46.
CPS-2 Components
Location of DCM Test Points and Resistor R11
POSITION
DEMAND
TRQ/THRUST
STALL
FB OPEN
STOP/LIMIT
ACKNOWLEDGE
TEMP F
CALIBRATE
SET POS
100%
SET DEM
100%
SET DEM
0%
SET POS
0%
R
FWD
REV
STAT
PWR
TP4
TP1
R11
TP3
TP2
FUSE
F1
SERIAL
PORT
RECOMMENDED SPARE PARTS
It is recommended that certain replacement
parts be stocked for quick availability in the event
that service of your Beck control drive is required.
The types of parts are listed in Table 1, below.
HOW TO ORDER SPARE PARTS
Select the needed parts from the spare parts
list given below. Specify the drive’s model / serial
number (e.g., 11-439-031891-01-02) given on the
nameplate to allow the factory to verify the part
selection. Parts may be ordered by mail, telephone
or fax, with the confirming order sent to the factory
(see back cover).
TABLE 1: RECOMMENDED SPARE PARTS
TABLE 2: MOTORS, CAPACITORS AND RESISTORS
APPENDIX SPARE PARTS
DESCRIPTION
PART NO.
DESCRIPTION
PART NO.
Limit switch assembly
20-3202-10
Motor resistor
See Table 2, below
Auxiliary switch assembly
Motor capacitor
See Table 2, below
(2 switches)
20-3202-11
(4 switches)
20-3202-12
DCM Board
22-5012-59
Gasket set
20-3110-03
Fuse, 7A, 125V
11-1373-01
Control motor
See Table 2, below
CPS-2
20-3400-09
37.5 *
37.5 *
18 *
24 *
25 f
8 f
25 f
25 f
6 f
25 f
8 f
6 f
MOTOR
PART NO.
VOLTAGE
HERTZ
AMP.
CAPACITOR
PART NO.
VALUE
RESISTOR
PART NO.
VALUE
14-2840-15
14-2840-05
14-2840-15
14-2840-15
14-2840-09
14-2840-15
14-2840-05
14-2840-09
20-1971-04
20-1971-04
20-1971-06
20-1971-10
20-2201-32
20-2201-33
120
120
2.20
2.20
3.00
3.00
60
50
60
50
*This is a resistor assembly.
SPUR
GEARING
RATIO / 1
60 Hz
120 RPM
60 Hz
72 RPM
50 Hz
60 RPM
GEAR MODULE
GEAR SET
OUTPUT SHAFT
ASSEMBLY
THIRD COMB.
GEAR
756
525
108
72
180
120
216
144
14-9732-02
14-9732-07
14-9872-10
14-9872-10
14-9692-03
14-9692-03
20-2201-33
20-2201-32
MOTOR
STROKING SPEED
sec / 100
GEAR PART NUMBER
o
TABLE 3: MODEL 11-439 GEARS
Sleeve, pilot tube
3
Output shaft assembly with main gear
15
Gasket, sleeve, pilot tube
4
Spring washer
16
O-ring
5
Ball bearings, output shaft
17
Spur gear, 1st combination
6
Gear, 3rd combination
18
Spur gear, 2nd combination
7
Pin, 3rd combination gear
19
Washers, flat fiber
8
Thrust washers
20
Pin, 2nd combination spur gear
9
Gear module assembly, see Table 3, page
21
Pin, 1st combination spur gear
68, for a complete list of part numbers
22
Gasket, control motor
10
Control motor, see Table 2, page 68, for a
23
Gasket, body
complete list of part numbers
24
Gasket, change gear plate
11
Handwheel, 6 1/2" O.D.
25
Gasket, control end cover
12
Control end cover
*To ensure exact replacement parts, include all nameplate data of the Beck drive with the order.
APPENDIX COMPONENTS
TABLE 4: DRIVE COMPONENTS*
Application reviews .......................................... 71
Beck linkage kits ...........................................3, 11
Components .................................................... 69
Component replacement ........................... 64–67
Contactless Position Sensor ............................ 13
Control motor ............................................. 12, 64
DCM HART® interface ............................... 26–55
Alarm messages .................................... 49–51
Calibration ............................................. 40–48
Communication ...................................... 26–35
Communicator menu tree ............................ 26
Configuration and setup ........................ 36–39
Troubleshooting ..................................... 52–55
DCM Local interface .................................. 15–25
Calibration ............................................. 17–23
Operation ............................................... 15–16
Troubleshooting ..................................... 24–25
DCM Serial interface ................................. 56–62
Commands ............................................ 57–61
Error codes .................................................. 62
Setup ........................................................... 56
Digital Control Module (DCM), introduction ..... 14
Direction of travel, changing ................ 23, 41, 58
Feedback signal .............................................. 13
Gears ............................................................... 68
Gear train ......................................................... 12
Handswitch ...................................................... 12
Handwheel ....................................................... 12
Housing ........................................................... 12
Installation, electrical ......................................... 9
Installation, mechanical ..................................... 8
Linkage requirements ...................................... 10
Link-Assist™ .................................................... 10
Loss of Demand input signal ........................... 13
Maintenance, routine ....................................... 63
Motors, capacitors and resistors table ............. 68
Outline dimension drawings .......................... 6–7
Product demonstrations ................................... 71
Product description ............................................ 3
Repairs - how to obtain service ....................... 71
Safety precautions ......................................... 2, 8
Service ............................................................. 71
Short-stroke operation ............................... 22, 45
Site surveys ..................................................... 71
SLM ........................................................... 12, 65
Spare parts, recommended ............................. 68
Specifications, general .................................. 4–5
Specification writing ......................................... 71
Split-range operation ................................. 21, 48
Stall protection and annunciation .................... 13
Start-up instructions ..........................................11
Stop/Limit indication ........................................ 13
Storage information ........................................... 8
Switches .......................................................... 12
Table of contents ............................................... 2
Temperature .................................................... 13
Torque protection and information ................... 13
Unpacking .......................................................... 8
Warranty .......................................................... 71
Wiring ................................................................ 9
INDEX
Each of Beck’s Sales Engineers has access
to a complete set of drive models so that he can
demonstrate virtually any of their features at your
location. In order to arrange to see a Beck drive
in your plant or office, contact Beck’s Sales De-
partment.
SITE SURVEYS
Beck Sales Engineers are available to dis-
cuss your process control requirements. Often
a visit to your location is the best way to gain a
thorough understanding of your needs, in order
to meet them most accurately and completely.
Mounting hardware, torque requirements,
linkage, control signal information, and optional
equipment can be analyzed most effectively at
the work site. Beck’s analysis at the job site can
help ensure that specifications are accurate, es-
pecially in the case of complex applications.
APPLICATION REVIEWS
By sharing your needs with a Beck Sales
Engineer you can take advantage of the best ap-
plication advice for the type of control you need.
This review will yield a better understanding of
the versatility of Beck drives for your installa-
tions, as well as complete details on options and
accessories to make the process as effective as
possible.
SPECIFICATION WRITING
Beck provides specification writing assistance
in order to help you specify and order the right
drives for your applications. Beck Sales Engi-
neers will work with you to make it easier for you
to obtain the proper equipment and give you con-
fidence that no details are overlooked.
HOW TO OBTAIN SERVICE
Factory repair of drives or subassemblies is
available for both normal and emergency service.
To assure prompt processing, contact the fac-
tory to receive a Returned Material Authorization
(RMA) number. If a repair estimation is desired,
please send the name and phone number of your
contact for service authorization. It is helpful to
include a description of the work desired with the
shipment or, in the event of a problem, the mal-
function being experienced.
THREE YEAR LIMITED WARRANTY STATEMENT
Harold Beck & Sons, Inc. (Beck) warrants that our equipment shall conform to Beck’s standard specifications. Beck warrants said
equipment to be free from defects in materials and workmanship. This warranty applies to normal recommended use and service for
three years from the date on which the equipment is shipped. Improper installation, misuse, improper maintenance, and normal wear
and tear are not covered.
The Buyer must notify Beck of any warranty issues within 37 months of original shipment date and return the goods in question,
at Buyer’s expense, to Beck for evaluation. If the product fails to conform to the warranty, Beck’s sole obligation and the Buyer’s
exclusive remedy will be: 1) the repair or replacement, without charge, at Beck’s factory, of any defective equipment covered by this
warranty, or 2) at Beck’s option, a full refund of the purchase price. In no event will Beck’s liability exceed the contract price for the
goods claimed to be defective.
THIS WARRANTY IS ExPRESSLY IN LIEU OF ANY OTHER ExPRESS OR IMPLIED WARRANTY, INCLUDING IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND ALL OTHER OBLIGATIONS OR
LIABILITIES OF BECK. In no case shall Beck be liable for any special, incidental or consequential damages based upon
breach of warranty, breach of contract, negligence, strict tort, or any other legal theory. Such damages include, but are not
limited to, loss of profits, loss of revenue, loss of use of the equipment or any associated equipment, cost of capital, cost
of any substitute equipment, facilities or service, downtime, the claims of third parties including customers and injury to
property.
Buyer acknowledges its responsibilities under OSHA, related laws and regulations, and other safety laws, regulations, standards,
practices or recommendations that are principally directed to the use of equipment in its operating environment. Buyer acknowledges
that the conditions under which the equipment will be used, its use or combination with, or proximity to, other equipment, and other
circumstances of the operation of such equipment are matters beyond Beck’s control. Buyer hereby agrees to indemnify Beck
against all claims, damages, costs or liabilities (including but not limited to, attorney’s fees and other legal expenses),
whether on account of negligence or otherwise, except those claims based solely upon the negligence of Beck and those
claims asserted by Beck’s employees which arise out of or result from the operation or use of the equipment by Beck’s
employees.
© Copyright 2004 by Harold Beck & Sons, Inc.
Beck Control Drives are covered by the following patents: 3,667,578; 4,690,168; 6,563,412 B2 and
6,639,375 B2 with other patents pending.
11 TERRY DRIVE NEWTOWN, PENNSYLVANIA 18940 USA
PHONE: 215-968-4600 FAX: 215-860-6383 www.haroldbeck.com
HAROLD BECK & SONS, INC.
R