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18

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 

10 

Adjusting board PLW 

1 270 295 00 

A102

11 

Rotating knob 

1 440 214 00 

12 

Regulator board 

1 270 254 00 

A103

13 

Logic board 

1 270 447 00 

A104

14 

Flowmeter Pilot gas 0-7 l/min 

1 431 846 00 

14.1 

Flowmeter Pilot gas 0-1,1 l/min 

1 432 016 00 

15 

Flowmeter welding gas 0-20 l/min 

1 432 015 00 

15.1 

Flowmeter welding gas 0-20 l/min 

1 432 015 00 

16 

Signallamp green 

1 440 901 00 

16.1 

Lamp 60V 

1 440 902 00 

17 

Signal lamp white 

1 441 523 00 

18 

Switch 

1 441 381 00 

19 

Rotating knob 

1 430 941 00

Spare parts list for power source PLW 202 / 402

1

17

18

17

19

18

8

9

10

11

12

13

14

15

Summary of Contents for PLASMAWELD 202

Page 1: ...ruction manual PLW 202 1 010 210 00 PLW 402 1 010 177 00 Version 2 2008 L TEC Schwei technik GmbH Walzwerkstra e 8a D 57537 Wissen Phone 49 2742 75 0 Fax 49 2742 75271 E Mail info ltec wissen de Inter...

Page 2: ...W 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 Wirin...

Page 3: ...HEALTH Keep your head out of the fumes Use ventilation extraction of fumes at the arc or both to keep fumes and gases out of your breathing zone and the general area ARC RAYS CAN INJURE EYES AND BURN...

Page 4: ...0 85 Frequency Hz 50 60 Fuses slow blow A 35 20 16 Welding Current range DC 5 220 A Duty cycle Plasma 60 ED 220 A TIG 100 ED 170 A STICK Open circuit voltage DC 98V DC Construction Dimensions mm L W...

Page 5: ...Frequency Hz 50 60 Fuses slow blow A 63 35 35 Welding Current range DC 6 400 A Duty cycle Plasma 60 ED 400 A TIG 100 ED 310 A STICK Open circuit voltage DC 98V DC Construction Dimensions mm L W H 102...

Page 6: ...ting the welding operation The power supplies are equipped with a constant current control so variations of the mains voltage or different arc length do not effect the current of the main arc The foll...

Page 7: ...he cooling unit and check the water level Liquid level should be about 3 cm 1 below the filling hole If not top up the tank using LoDuct cooling fluid Caution Electrolytic corrosion may shorten the li...

Page 8: ...10 A If PT 75 or PT 150 resp PTM 150 are used pilot current must be reduced to 5A This is performed by eliminating jumper at resistor R105 The PLW 202 pilot arc current is factory set to 5A and can b...

Page 9: ...art lamp d will light 3 Keep torch away from work 4 Set switch i to symbol 5 set switch k to symbol 6 Push test button for plasma gas and adjust flow rate acc to data sheet plasma welding 7 set switch...

Page 10: ...utton E depressed and adjust welding current Amperage is preset at potentiometer a and can be read from ammeter D C TIG Pilot Welding Connection of the plasma torch and adjustment of power supply is d...

Page 11: ...l 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 pres...

Page 12: ...ke 4 To finish the welding operation down slope is initiated by actuating torch or foot switch 3 stroke closing of keyhole The Plasma key hole system is used for porosity free closing of key hole circ...

Page 13: ...F 2 Release torch or foot switch Welding with current up slope 3 Press torch or foot switch Current down slope 4 Release torch or foot switch End of welding and gas post flow C TIG pilot arc welding W...

Page 14: ...5 H2 Ar 12 30 3 0 L 80 Ar 0 7 5 H2 Ar 10 15 Carbon 1 5 II 80 Ar 0 7 Ar 10 20 Steel 3 0 L 100 Ar 0 7 Ar 10 20 Titanium 0 6 II 13 Ar 0 3 Ar 8 17 1 2 II 60 Ar 2 0 Ar 12 50 For torches PT 8 PT 300 Stainle...

Page 15: ...the unit Your attention is therefore drawn to all maintenance instructions included in this operating manual As a general rule each welding unit should be thoroughly inspected tested and serviced at...

Page 16: ...Main input voltage Fuses Gas supply Electrical connections Fault indications Digital readout Are fans and water pump running Unusual noise Mistake in operation Torch problems HF Open circuit voltage S...

Page 17: ...441 834 00 1 441 834 00 X107 3 Receptable for welding cable702 1 440 698 00 1 440 698 00 4 Central connection 1 260 795 00 1 260 795 00 ZA 5 Receptable 5 pol 1 440 162 00 1 440 162 00 X101 6 Main swi...

Page 18: ...ic board 1 270 447 00 A104 14 Flowmeter Pilot gas 0 7 l min 1 431 846 00 14 1 Flowmeter Pilot gas 0 1 1 l min 1 432 016 00 15 Flowmeter welding gas 0 20 l min 1 432 015 00 15 1 Flowmeter welding gas 0...

Page 19: ...K101 K103 K105 K106 23 Capacitor fan 3 F 400V 1 441 785 00 C103 24 Water pump incl capacitor 1 431 679 00 M105 C105 25 Fan 150mm 1 441 550 00 M106 M107 26 Relays board 1 270 517 00 A110 26 1 Water fl...

Page 20: ...530 00 A108 31 Steering roller 1 430 640 00 1 430 640 00 32 Main inductor 1 130 061 00 1 130 059 00 L101 33 HF inductor 1 130 037 00 1 130 080 00 L102 34 Pedestal mounted roller 1 430 639 00 1 430 639...

Page 21: ...use 1 6A slow blow 5x20mm 1 440 769 00 F103 F104 Fuse holder 1 443 008 00 Screw cap 1 443 009 00 39 Pilot and base current rectifier 1 441 529 00 V102 40 Gas solenoid valve 1 440 327 00 Y101 Y102 41 P...

Page 22: ...tch 4 stroke 2 stroke k Switch TIG welding MMA welding G 5 pol socket for remote controls Foot remite control FC 4 Manual remote control Puls unit E Switch adjust welding current b 5 pol socket for au...

Page 23: ...ctor for torch C Socket for pilot circuit G 5 pol socket for remote controls F Foot remote control FC 4 Manual remote control Puls unit H Socket for work return lead and electrode holder lead Spare pa...

Page 24: ...24 Wiring diagram...

Page 25: ...llowing shall be taken into account a Other supply cables control cables signalling and telephone cables above below and adjacent to the welding or cutting equipment b Radio and television transmitter...

Page 26: ...e the risk that the operator could recieve an electrical shock by touching these metallic components and the electrode at the same time The operator should be insulated from all such bonded metallic c...

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