Table Of Contents - Kemppi MasterTig 3500 Service Manual

Contents
General
Technical data, switches and connectors
Mastertig function panels
Operating principle
IGBT gate pulse (2800/3500)
Voltage over the lower IGBT (2800/3500)
Voltage after the secondary diodes (2800/3500)
IGBTgate pulse (1400-2200)
Voltage over the lower IGBT (1400-2200)
Voltage after the secondary diodes (1400-2200)
Troubleshooting
Power source control card A001 block diagram
Mastertig-power source´s TIG-section´s functions
Signals between control cards A001 and A002
Signals between control cards A002 and A004
Control card A001 layout (1400/1500)
Control card A001 layout (2000/2200)
Control card A001 layout (2800/3500)
MSD 1-meter unit layout
Control card A002 layout (1500/2200)
Control card A002 layout (2800/3500)
Control card A004 layout (2800/3500)
Control card A001 operation check
Control card A002 operation check
Control card A004 operation check
Notes
3
3-6
7-10
11
12
13
14
15
16
17
18-20
21
22
23
23
24
24
25
25
26
26
27
27
28-29
30
31
2