Kemppi MasterTig AC/DC 2000 Service Manual

Also see for MASTERTIG AC/DC 2000: Operation instructions

Control card A002´s functional blocks:• PWM-development• Primary IGBT control• Current and voltage adjustment loop• Aux. Voltages development + 5, ± 15, + 16 and + 24 V• Secondary overvoltage watch• Primary current limiting circuit• Net overvoltage and undervoltage watch• Fan control power stage• Solenoid valve control power stage• Cooling unit control power supplyControl card A002 functions / connectors27X1/1 Machine size detection (1600/2500)X1/2 Set value from the remote controllerX1/3 Process selecting from the remote controllerX1/4 Overheat protections (PTC)X1/5 Machine size detection (2000)X1/6 Fan controlX1/7 Net voltage watch from the aux. Transformer T002 secondaryX1/8 -X1/9 Welding current; DC+ or AC positive half cyclesX1/10 Welding current; DC- or AC negative half cyclesX1/11 Welding voltage; DC+ or AC positive half cyclesX1/12 Welding voltage; DC- or AC negative half cyclesX1/13 Net overvoltage watchX1/14 Control amplifier (N6-A) outputX1/15 TIG-torch switchX1/16 AC TIG auxiliary pulse controlX2/1 Solenoid valveX2/2 TIG ignition spark controlX2/3 Set value from A001X2/4 PWM enableX2/5 Secondary IGBT controlX2/6 Secondary IGBT controlX2/7 + 16 VX2/8 + 16 VX2/9 + 5 VX2/10 + 5 VX2/11 GNDX2/12 GNDX2/13 Cooling unit startX2/14 Stop-command from the cooling unitX2/15 Inverter frequency 18/36 kHzX2/16 Machine size detection (3500)