LORCH X Series Operation Manual

Im Anwänder 24 - 26 71549 Auenwald-Germany Telefon: +49 7191 503-0 Telefax: +49 7191 503-199 Internet: www.lorch.eu E-Mail: [email protected] 909.1550.1-08 Operation Manual X Series EN ...

 11.18 Publisher Lorch Schweißtechnik GmbH Im Anwänder 24 - 26 71549 Auenwald, Germany Telephone: +49 (0) 7191 / 503-0 Fax: +49 (0) 7191 / 503-199 Website: www.lorch.biz Email: [email protected] Document number 909.1550.1-08 Issue date 30.11.2018 Copyright © 2012, Lorch Schweißtechnik GmbH This documentation including all its parts is protected by copyright. Any use or modification outside the strict limits of the copyright law without the permission of Lorch Schweißtechnik GmbH is prohibited and liable to prosecution. This particularly applies to reproductions, translations, microfilming and storage and processing in electronic systems. Te ...

11.18 909.1550.1-08 Table of contents 1 Machine elements. . . . . . . . . . . . . . . 4 2 Explanation of symbols. . . . . . . . . . 4 2.1 Meaning of the symbols in the operation manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Meaning of the symbols on the machine. . . . . . 4 3 Safety precautions . . . . . . . . . . . . . . 5 4 Ambient conditions. . . . . . . . . . . . . . 5 5 General regulation of use. . . . . . . . . 6 6 UVV inspection. . . . . . . . . . . . . . . . . 6 7 Unit protection. . . . . . . . . . . . . . . . . . 6 8 Noise emission. . . . . . ...

- 4 - 11.18 909.1550.1-08 1 Mains cable holder 2 Transportation belt 3 Handle (hoisting point) 4 Control panel 5 Accessories belt 6 Main switch 7 Remote control socket 8 Connection socket torch/electrode holder/compo- nent guide 9 Mains cable The carrying strap is exclusively for the transport by a person. Some depicted or described accessories are not included in the scope of delivery. Subject to change. i 1 Machine elements 4 5 6 7 8 8 9 2 3 1 Abb. 1: Machine elements 2 Explanation of symbols 2.1 Meaning of the symbols in the opera- tion manual Danger of physical injury or death! If the danger warnings are disregarded, this can ...

11.18 909.1550.1-08 3 Safety precautions Hazard-free working with the machine is only possible if you read the operating and safety instructions completely and strictly observe them. Please obtain practical training before us- ing the machine for the first time. Heed the safety regulation (UVV).* Before starting any welding work, clear away any solvents, degreasing agents, and other flammable materials from the working area. Non-movable flammable materials must be covered. Only weld if the ambient air contains no high concentra- tions of dust, acid vapours, gases or flam- mable substances. Special care must be taken during repa ...

11.18 909.1550.1-08 5 General regulation of use This machine is intended for use in the commercial and industrial sector. It is portable and is suitable for opera- tion on the mains supply or also on a power generator. ‰ ‰ The machine is intended for DC electrode welding of – – unalloyed steels, low and high-alloy steels – – nickel and its alloys ‰ ‰ Together with a TIG welding torch, the machine is suitable for TIG welding with direct current of – – unalloyed steels, low and high-alloy steels – – copper and its alloys – – nickel and its alloys – – special metals like titanium, zirconium and tanta- lum. ‰ ‰ ...

11.18 909.1550.1-08 11 Before start-up 11.1 Fasten transportation belt 2 12 13 Abb. 2: Transportation belt 2 Transportation belt 12 Plastic slides 13 Velcro fastener   Thread the transportation belt into the welding ma- chine and plastic slides. See sequence of the num- bering in the picture. 11.2 Fastening accessories belt 5 14 12 Abb. 3: Accessories belt 5 Accessories belt with fastener 12 Plastic slides 14 Closure   Thread the accessories belt into the handle and plas- tic slides. See sequence of the numbering in the pic- ture.   Plug the belt fasteners together. ...

11.18 909.1550.1-08 Connecting the inert gas cylinder 26 23 25 28 27 24 22 Abb. 4: Gas connection   Place the inert gas cylinder 28 in a suitable location and secure to prevent it from falling over. ‰ ‰ The cylinder can be secured using a wall bracket or cylinder trolley.   Briefly open the gas cylinder valve 27 several times in order to blow out any dirt particles that are present.   Connect the pressure reducer 22 to the inert gas cyl- inder 28.   Screw the inert gas hose 24 to pressure reducer 22 and open the gas cylinder valve 27. Setting the inert gas quantity   Open the valve 19 on the TIG welding torch ...

11.18 909.1550.1-08 11.6 Connecting the ground cable   Connect the ground cable to the free minus or plus 8 socket and secure the cable by rotating it clockwise. Fastening the ground clamp Abb. 5: Attaching the ground clamp - Correct!   Fasten the grounding clamp in the immediate vicinity of the welding area, so that the welding current can- not seek its own return path across machine parts, ball bearings or electric circuitry.   Connect the ground clamp firmly to the welding bench or the workpiece. Abb. 6: Attaching the ground clamp - Wrong! ‰ ‰ Do not place the ground clamp on the welding ma- chine or the gas cylin ...

11.18 909.1550.1-08 12 Start-up 44 45 46 47 48 49 34 35 39 42 41 43 40 38 36 32 33 55 56 57 54 53 52 31 30 50 51 37 Abb. 8: Control panel X 350 Control Pro 44 45 47 48 49 34 35 39 42 41 43 40 56 57 52 55 58 53 Abb. 9: Control panel X 350 Basic Plus 30 Selection button Up / Arc Force / Pulsesis used to select uphand seam welding, arc dynamics and / or pulsing. 31 Selection button Hotstart / Regular is used to se- lect Hotstart (increased `start current) or regular start current. 32 The Regular LED lights up with regular start cur- rent. (without Hotstart) 33 The Hotstart LED lights up when Hotstart is se- lected. 34 The Fault LED lights ...

11.18 909.1550.1-08 35 The Remote control LED lights up when a remote control is connected. Control knob 56 specifies the maximum value for the control range of the remote control. If 100A has been set, for example, 10A - 100A can be called up using the remote control. 36 The Pulse LED lights up when the pulse function has been selected. (the pulse is carried out be- tween welding current I1 and I2) 37 The Up (uphand seam welding) LED lights up when the vertical up-welding function has been selected. 38 The Up Force (arc dynamics) LED lights up when the arc dynamics function has been selected. (short time current increase with short arc ...

11.18 909.1550.1-08   Repeat the operations for setting the Hotstart time "tSt" secondary parameter.   Exit the secondary parameters by pressing the Menu button 55. ‰ ‰ Alternatively, the Hotstart secondary parameter can be called up by keeping the selection button 31 pressed for 2 secs. with Hotstart (LED 33 lights up) selected. (Control Pro) Arc dynamics (Arc Force) ‰ ‰ The electrode is prevented from burning in in the weld pool by means of a brief current increase with a short arc.   Press button 30 until the ARC symbol (LED 38) lights up. (Control Pro)   Press button 55 to call up the secondary parameters.   ...

11.18 909.1550.1-08 12.2 TIG welding process Switch on the system   Switch on the system at the main switch 6.   Press button 50 (Control Pro) or 58 (BasicPlus) re- peatedly until the desired TIG operating mode is se- lected. 9 9 The TIG symbol (LED 44) lights up.   Press button 30 to turn the Pulse function on or off. (Control Pro)   Use control knob 56 to set the desired welding cur- rent. TIG welding current Range Factory setting Welding current I1 10 to 350 A 100 Tab. 3: TIG welding current Arc ignition   Open the valve 19 on the TIG welding torch.   Briefly touch the workpiece with the tip of the elec- trode ...

11.18 909.1550.1-08 12.4 Call up the secondary parameters   Press button 55 to call up the secondary parameters.   Set the desired secondary parameter by rotating the control knob 56. 9 9 The parameter code and the corresponding setting are displayed alternately in the 7-Segment display 41.   Confirm the secondary parameter by pressing the control knob 56.   The setting can be adjusted by rotating the control knob 56.   Confirm the setting by pressing the control knob 56.   The previous or next secondary parameter is dis- played by rotating the control knob 56. ‰ ‰ Different secondary parameters are available d ...

11.18 909.1550.1-08 12.5 Special functions Gouging ‰ ‰ Gouging is used for working out the roots or faulty points and serves for preparing the weld seam. ‰ ‰ A special torch is required for gouging that has car- bon electrodes and compressed air connection.   Press and hold the electrode button 50 (Control Pro) or 58 (Basic Plus) for at least 2 seconds. 9 9 The Electrode CEL LED 49 flashes.   Set the desired current by rotating the control knob 56. Up / Pulses (Control Pro) ‰ ‰ The Up and Pulses function can be activated or de- activated. The Up (LED 37) and Pulses (LED 36) functions are only available in an active state. ...

11.18 909.1550.1-08 Function lock ‰ ‰ The Function lock can be activated or deactivated. The function lock can only be switched on in an active state. When the function lock is switched on, all but- tons on the control knob are blocked. Function lock activation / deactivation   Press button 55 to call up the secondary parameters.   Select the Function lock secondary parameter (Code "LOC") by rotating the control knob 56.   Confirm the secondary parameter by pressing the control knob 56.   Set the desired value by rotating the control knob 56. – – "On " = Activated – – "OFF" = Deactivated   Confirm the setti ...

11.18 909.1550.1-08 machine) to maximum (set welding current on the machine). If the setting is 100A, for example, the remote control can call up 10A - 100A. 61 The polarity switch is used to change the polarity (only machines with polarity reverser) The machine is protected against multiple chang- es at short intervals by a 2-second delay. 62 The standby switch is used to activate / deactivate standby mode (idle state) The switching position of the remote con- trol has priority over the settings on the welding machine. Remote control without polarity and standby switch ‰ ‰ When using the Lorch remote control without polarity and stan ...

11.18 909.1550.1-08 13 Graphs 13.1 Electrode bPU Pulse duty cycle FPU Pulse frequency I Power I1 Welding current I2 Second current ISt Hotstart t Time tSt Hotstart time Abb. 12: Electrode current routing diagram bPU Pulse duty cycle FPU Pulse frequency I Power I1 Welding current I2 Second current ISt Start current Iz Ignition current t Time tIu Upslope tSt Start current time Abb. 13: TIG current routing diagram 13.2 TIG I Power I1 Welding current I2 Second current t Time uP1 Up welding current uP2 Up second current uPF Up frequency uPU Up duty cycle Abb. 14: Up current routing diagram 13.3 Up ...

11.18 909.1550.1-08 14 Messages 14.1 Status messages ‰ ‰ An error code is displayed in the 7 segment display 41 in event of an error. After the message has been output, the machine will only function to a limited ex- tent; the error must be corrected as quickly as possible. The status message can be deleted by pressing the control knob 56. i 14.2 Error messages ‰ ‰ An error code is displayed in the 7 segment display 41 in event of an error. Press any button to display the sub-error (Sub-Code). As long as there is an error code on display welding is not possible. i Code Note Cause Possible remedy H08 Short-circuit Short-circuit in th ...

11.18 909.1550.1-08 15 Welding basics 15.1 Stick electrode welding Coated stick electrodes are used for the widely-used manual metal arc welding process (stick electrode weld- ing). The coating of the electrode melts off during the welding process together with the core wire. The coating generates the shielding gas. Additionally the burning- off coating compensates alloy elements, which are de- stroyed in the molten pool. A slag layer forms on top of the welding seam, which covers and protects the cooling welding seam against the air. The coatings of the electrodes differ according to thick- ness and type, i.e. chemical compositio ...