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Summary of Contents for L-TEC PLASMAWELD 202
- Page 1 L-TEC Schweißtechnik GmbH Walzwerkstraße 8a | D-57537 Wissen Phone: (+49) 27 42 / 75-0 | Fax: (+49) 27 42 / 7 52 71 E-Mail: info@ltec-wissen.de | Internet: www.ltec-wissen.de...
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Page 2: Table Of Contents
Index Safety advice ............................................3 Technical data PLW 202 ......................................4 Technical data PLW 402 ......................................5 Technical description ........................................6 Installation .............................................7-12 Starting up / Welding ........................................13 Data sheet plasma welding ....................................14 Accessoires ............................................15 Maintenance .............................................15 Trouble shooting ..........................................16 Spare parts ..........................................17-23 Wiring diagram .......................................... -
Page 3: Safety Advice
Safety advice WARNING ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAUTIONS WHEN WELDING. ASK FOR YOUR EMPLOYER‘S SAFETY PRACTICES WHICH SHOULD BE BASED ON MANUFACTURER‘S HAZARD DATA . ELECTRIC SHOCK ... CAN KILL! Install and earth the welding or cutting equipment in accordance with applicable standards. ... -
Page 4: Technical Data Plw 202
Technical data PLW 202 Mains: Mains voltage (V) 3-phase Permanent power (kVA) Permanent current 24,4 14,0 11,2 Max. current 31,4 18,0 14,5 Power factor cos phi 0,85 0,85 0,85 Frequency (Hz) 50/60 Fuses, slow blow Welding: Current range 5 - 220 A Duty cycle Plasma, 60% ED 220 A... -
Page 5: Technical Data Plw 402
Technical data PLW 402 Mains: Mains voltage (V) 3-phase Permanent power (kVA) 19,4 19,4 19,4 Permanent current Max. current Power factor cos phi 0,85 0,85 0,85 Frequency (Hz) 50/60 Fuses, slow blow Welding: Current range 6 - 400 A Duty cycle Plasma, 60% ED 400 A 100% ED 310 A... -
Page 6: Technical Description
Technical description The plasma arc welding machines PLASMAWELD 202 and 402 have been developed for welding with transferred arc, i. e. the main arc transfers from the tungsten to the work piece. These units can also be used for TIG, TIG pilot arc and manual metal arc (MMA) welding. -
Page 7: Installation
Installation On the last page of these instruction manual a picture of the unit marked with symbols is located. Please unfold and refer to this page in conjunction with the following instructions. 1. Mains connection The units are factory connected to 400 V 50/60 Hz. They also can be used on 230 V 50/60 Hz and 500 V 50/60 Hz mains. - Page 8 Installation 4. Torch connection The manual welding torches PT 75 and PT-150 as well as the machine torches PT-8 and PT 300 can be connected with the central connector B easily and without tools. Make sure, that the water in- and outlet hoses are connected to the corresponding colour coded quick connections.
- Page 9 Installation 8. Connection for automatic welding With socket b the machine can be connected to an automatic control (see wiring diagram) Wiring diagram of 5-pole socket on adjusting board Start Pilot extern on* View of the front Current relais * When switching on the pilot arc about the contacts 1 and 3 of the socket b the switch f remains into mid position.
- Page 10 Installation Adjustment of tungsten with torch PT-8 Set switch F to mid position and operate torch switch or foot switch. HF will start. Check whether HF sparks over to nozzle on all sides. If not, readjust tungsten electrode of torch. This adjustment is very im- portant and should be repeated regularly.
- Page 11 Installation E. Manual Metal Arc Welding Remove TIG- or plasma-torch control cable plug (Water pump is now out of operation). 2. Connect electrode holder 3. Set switch k to symbol 4. Set switch f to mid position 5. Keep button E depressed and adjust welding current. Amperage is preset at potentiometer a and can be read from ammeter D.
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Page 12: Installation
Installation Welding A. Plasma-welding Current down slope time can be adjusted at poti c to give a delay time of 0,5 to 5,0 s. after the third operation in the 4-stroke mode has been activated (see t in diagram). 2. Position of poti h defines duration of current up-slope (see t in diagram), whereas time of down- slope tf is set at poti m. -
Page 13: Starting Up / Welding
Starting up / Welding B. TIG-Welding Position of poti h defines the duration of up-slope, while time of down-slope is set at poti m. 2. Depending on the position of switch i, the machine can be operated in 2- or 4-stroke mode: 2-stroke mode Symbol 1. - Page 14 Data for plasma welding Data for plasma welding (recommended values) Material Material- Edge- Welding Pilot gas Welding gas Travel- thickness prepa- current Gasrate Flow Gasrate Flow speed (mm) ration (l/min) (l/min) (cm/min) For torch PT-150 / PTM-150 Stainless Steel Carbon- Steel Titanium For torches PT-8 / PT-300...
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Page 15: Accessoires
Unnoticed wear can become dangerous both for the equipment and the user. Have this unit inspected and maintained by authorised dealers at regular intervals. Note: Use original L-TEC parts throughout; otherwise the warranty will rendered null and void. -
Page 16: Trouble Shooting
Trouble shooting All L-TEC units are subjected to a thorough quality control check and final inspection. Nevertheless, if there is a malfunction, please make a first check for general faults as follow: Main input voltage Fuses Gas supply ... -
Page 17: Spare Parts
Spare parts list for power source PLW 202 / 402 Item Designation PLW 202 PLW 402 Designation Part No. Part No. on circuit diagram Control panel PLW 202/402 kpl. 1 170 168 00 1 170 168 00 A101 Pilot receptable 1 441 834 00 1 441 834 00 X107... - Page 18 Spare parts list for power source PLW 202 / 402 Item Designation PLW 202/402 Designation on Part No. circuit diagram Display board 1 270 363 00 A107 Gas test push bottom 1 442 005 00 Adjusting board PLW 1 270 295 00 A102 Rotating knob 1 440 214 00...
- Page 19 Spare parts list for power source PLW 202 / 402 2.1 Item Designation PLW 202/402 Designation on Part No. circuit diagram HF-Generator SIG 3. 1 1 170 100 00 G101 Contactor 42V 1 442 708 00 K101-K103,K105, K106 Capacitor fan 3µF/400V 1 441 785 00 C103 Water pump incl.
- Page 20 Spare parts list for power source PLW 202 / 402 Item Designation PLW 202 PLW 402 Designation on Part No. Part No. circuit diagram Filter board 1 270 614 00 1 270 614 00 A106 Thyristorbridge 1 443 024 00 1 441 530 00 A108 Steering roller...
- Page 21 Spare parts list for power source PLW 202 / 402 Item Designation PLW 202/402 Designation on Part No. circuit diagram Fuse 4A slow blow (5x20mm) 1 440 459 00 F101, F102 Fuse 1,6A slow blow (5x20mm) 1 440 769 00 F103, F104 Fuse holder 1 443 008 00...
- Page 22 Spare parts list for power source PLW 202 / 402 Ammeter Lamp green – machine ready Lamp white – pilot arc Switch – left position start pilot – mid position HF test – right position TIG welding Lamp white – welding current Switch potentiometer –...
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Page 23: Spare Parts
Spare parts list for power source PLW 202 / 402 5 pol socket for control plug Central connector for torch Socket for pilot circuit 5 pol socket for remote controls Foot remote control FC 4 – Manual remote control – Puls unit Socket for work return lead and electrode holder lead... -
Page 24: Wiring Diagram
Wiring diagram... -
Page 25: Annex Emc
Annex EMC Installation and use under the aspect of electromagnetic compatibility (EMC) The user is responsible for installing and using the welding or cutting equipment according to the manufacturers instructions. If electromagnetic disturbances are detected, then it shall be the responsibility of the user of the welding or cutting equipment to resolve the situation with the technical assistance of the manufacturer. -
Page 26: Annex Emc
Annex EMC A.2.2 Maintenance of the welding and cutting equipment The welding and cutting equipment should be routinely maintained according to the manufacturers re- commendations. All access and service doors and covers should be closed and properly fastened when the equipment is in operation. The welding or cutting equipment should not be modified in any way except for those changes and adjustments covered in the manufacturers instructions.
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