Theben RM 4 H FIX1 Manual 

Contents 1 Function description 3 2 Operation 4 3 Technical data 5 4 The FIX2 RM 8 H application programme 7 4.1 Selection in the product database 7 4.2 Overview of communication objects 8 4.3 Description of communication objects 10 4.4 Parameter pages overview 15 4.5 General parameters 16 5 Typical applications 34 5.1 2x switching with push button interface 34 5.2 Temperature-controlled domestic water heating 36 6 Appendix 38 6.1 The scenes 38 6.2 Conversion of percentages to hexadecimal and decimal values 41 ...

1 Function description • 4-fold FIX1 or 8-fold FIX2 switch actuator. • Up to 25 A switching current. • Connection cross-section up to a maximum of 6 mm2. • Energy-saving thanks to bistable relay. • No power connection required. • LED switching status indicator for each channel. • Manual operation on device. • Adjustable features: e.g. switching, delayed switching, pulse function. • Links, type of contact (NC contact/NO contact) and participation in central commands such as permanent On, permanent Off, Central switching and save/call up scene. • Switch functions: e.g. On/Off, pulse, On/Off delay, stair ...

2 Operation Each channel can be switched on and off independently of all parameters using the buttons on the device. A status LED displays the current switching status. All bus telegrams are ignored with manual operation switched on (manual button) and the channels are to be operated exclusively via the buttons.  Once the bus voltage has been connected or after a bus reset, it might take a few seconds until the relays switch. ...

3 Technical data KNX bus voltage 21 – 32 V DC KNX bus power input Typical: 6.5 mA1, 10 mA2 Maximum: 12.5 mA3, 17.5 mA4 Number of channels 4 or 8 Type of installation DIN-rail Width 4 TE5 or 8 TE6 Connection type KNX bus terminal, screw terminals Max. cable cross-section Solid: 6 mm² | strand with crimp terminal: up to 4 mm² Standby output min. 0.17 W/0.26 W Type of contact μ-contact, floating NO contact, contact gap < 3 mm; NO contact; the switching of any phase is permitted Switching capacity 25 A (at 240 V AC, cos ϕ = 1) 16 A (at 250 V AC, cos ϕ = 0.6) Minimum load 12 V/100 mA Switching SELV Possible if all chan ...

Fluorescent lamps (LLB) uncompensated/series compensated 5000 VA1 Fluorescent lamps (LLB) parallel compensated 2500 W, 200 μF2 Fluorescent lamps (EVB) 1650 W Compact fluorescent lamps (EVG) 410 W LED lamps < 2 W 75 W LED lamps 2 W – 8 W 850 W Pollution degree 2 Rated impulse voltage 4 kV Shortest switching interval, if all channels are switched at the same time 3 s 1 With 30,000 switching cycles 2 With 30,000 switching cycles ...

4 The FIX2 RM 8 H application programme 4.1 Selection in the product database Manufacturer Theben AG Product family Output Product type RM 4 H, RM 8 H Programme name FIX2 RM 8 H  The ETS database can be found on our website: www.theben.de/en/downloads_en Number of communication objects 83 Number of group addresses 254 Number of associations 255 ...

4.2 Overview of communication objects 4.2.1 Channel-related objects No. Object name Function Length R W C T DPT 0 Channel C1 Switch object 1 bit R W C - 1.001 Threshold as a percentage 1 byte R W C - 5.001 Threshold 0..255 1 byte R W C - 5.010 Threshold 0..65535 2 bytes R W C - 7.001 Threshold EIS 5 (DPT 9.xxx) 2 bytes R W C - 9.xxx 1 Channel C1 Logic input in OR gate 1 bit R W C - 1.002 Logic input in AND gate 1 bit R W C - 1.002 Logic input in XOR gate 1 bit R W C - 1.002 2 Channel C1 Block 1 bit R W C - 1.001 3 Channel C1 Call up/save scenes 1 byte R W C T 18.001 4 Channel C1 Block scenes = 1 1 bit R W C - 1.001 Enab ...

4.2.2 Common objects No. Object name Function Length R W C T DPT 78 C1 – C4 Manual 1 bit R W C T 1.001 79 C1 – C4 Collective feedback 4 bytes R - C T 27.001 158 C5 – C8 Manual 1 bit R W C T 1.001 159 C5 – C8 Collective feedback 4 bytes R - C T 27.001 240 Central permanent ON 1 bit R W C T 1.001 241 Central permanent OFF 1 bit R W C T 1.001 242 Central switching ON/OFF 1 bit R W C T 1.001 243 Central scenes Call up/save 1 byte R W C T 18.001 250 Version of bus coupling unit Send 14 bytes R - C T 16.001 251 Version C1 – C4 Send 14 bytes R - C T 16.001 252 Version C5 – C8 Send 14 bytes R - C T 16.001 ...

4.3 Description of communication objects 4.3.1 Channel-related objects Object 0 Switch object, threshold as a percentage, threshold 0..255, threshold EIS 5 (DPT 9.xxx), threshold 0..65535 Input object: this object activates the set channel function (see parameter: Channel function). The set channel function can either be activated via 1-bit telegram or by exceeding a threshold (8- or 16-bit telegram). Parameter Activation of channel function via Activation of function via Type of threshold object Switch object 1-bit telegram Exceeding the threshold Object type: Per cent (DPT 5.001) Exceeding per cent value Object type: C ...

Object 4: Block scenes = 1, enable scenes = 1 Blocks the scene function with a 1 or a 0 depending on the configuration. As long as it is blocked, scenes cannot be saved or called up. Object 5: On/Off feedback Reports the current channel status. The status can also be inverted depending on configuration. Object 6: Time to next service, operating hours feedback Only available if the hour counter function is activated (Configuration options parameter page). Reports, depending on selected Type of hour counter (Hour counter and service parameter page), either the remaining period to the next service or the current status of t ...

4.3.2 Common objects Objects 78, 158: Manual Puts the corresponding channel block (C1 – C4 or C5 – C8) in manual mode or sends the status of the manual operation. Telegram Meaning Explanation 0 Auto All channels can be operated via the bus as well as via the buttons. 1 Manual The channels can only be operated via the buttons on the device. Bus telegrams will not work. Objects 79, 159: Collective feedback Sends the current switching status of all channels in the format DPT 27.001 (DPT_CombinedInfoOnOff). Object 240: Central permanent ON Central switch-on function. Enables simultaneous switching on of all channels with ...

Object 242: Central switching Central switch function. Enables simultaneous switching on or off of all channels with one single telegram. 0 = OFF 1 = ON Participation in this object can be set individually for each channel (Configuration options parameter page). With this object, every participating channel responds exactly as if its input object were receiving a switch command. Object 243: Call up/save central scenes Central object for using scenes. This object can be used to save and subsequently call up “scenes”. See appendix: Scenes Object 250: Version of bus coupling unit For diagnostic purposes only. Sends the ...

Object 251: Version C1 – C4 For diagnostic purposes only. Sends the software version (firmware) of the channel block C1 – C4 after reset or download. Can also be read out directly via the ETS. The version is issued as an ASCII character string. Format: Mxx Hyy Vzzz Code Meaning xx 19 = Module code RM 4 H / RM 8 H (hexadecimal). yy Hardware version 00..99 zzz Firmware version 000..999 EXAMPLE: M19 H01 V001 - Module $19 = RM 4 H / RM 8 H - Hardware version V01 - Firmware version V01 Object 252: Version C5 – C8 For diagnostic purposes only. Sends the software version (firmware) of the channel block C5 – C8 after res ...

4.4 Parameter pages overview Parameter page Description General General parameters: Collective feedback and relay switch delay. Channel C1 Configuration options Characteristics of channel and activation of additional functions (scenes, links, etc.). Contact characteristics Type of contact and status after download, bus failure, etc. Threshold Settings for triggering channel function through exceeding threshold. Block function Type of block telegram and response to blocking. Scenes Selection of scene numbers relevant to the channel. Feedback Status of feedback object, etc. Hour counter and service Type of hour counter and ...

4.5 General parameters 4.5.1 General Designation Values Description Device type RM 4 H 4-channel device FIX1 RM 8 H 8-channel device FIX2 Function of the manual button applies for 24 hours or until reset via object blocked applies until reset via object applies for 30 minutes or until reset via object applies for 1 hour or until reset via object applies for 2 hours or until reset via object applies for 4 hours or until reset via object applies for 8 hours or until reset via object applies for 12 hours or until reset via object Determines how long the device works manually and how this is ended. In manual mode, the channe ...

Designation Values Description None There is no added delay. 60 ms 100 ms 200 ms When a relay switches on, the next one can only switch on after the set delay is completed. The switch-on delay between the first and last relay is calculated according to the following formula: (Number of channels – 1) x delay Example: RM 4 H and 60 ms: = (4 channels – 1) * 60 ms = 180 ms  Channel C4 switches 180 ms after C1. ...

4.5.2 Channel C1: Configuration options A configurable copying function is not incorporated into the design. The ETS offers convenient and extensive copying functions via the CTRL key. Designation Values Description Channel function Switching On/Off.. On/off delay.. Pulse function.. Staircase light time switch with forewarning function.. Flashing.. Determines the basic functionality of the channel. Activation of function via Switch object The channel is operated via a 1-bit object. Exceeding the threshold The channel is operated through exceeding a 1 or 2- byte threshold. See below: the “Threshold” parameter page Adj ...

Designation Values Description at Central switching, Permanent On, Permanent OFF only in central permanent ON only in central permanent OFF only in Central switching only in Central switching and permanent ON only in Central switching and permanent OFF only in central permanent On and permanent OFF Which central objects are to be taken into account? Central objects enable simultaneous switching on and off of several channels with one single object. Adjust feedback Yes.. The feedback function can be individually adjusted. The relevant parameter page is shown. no The Feedback function works with the standard parameters: - ...

4.5.3 Contact characteristics Designation Values Description Type of contact NO contact Standard: The relay contact is closed when a switch- on command is issued. NC contact Inverted: The relay contact is opened when a switch- on command is issued. Status with download and bus failure After download or with bus voltage failure… OFF ..the relay switches off. ON ..the relay switches on. unchanged …the relay remains in the same state as before.  If several switching operations were executed immediately before the bus failure, the energy may not be sufficient for an additional switching operation. In this case, the re ...