Table Of Contents - Kemppi WeldForce KPS 3500 Service Manual

Contents
Technical data.....................................................3
Switches and connectors.........................................3
Operation principle.............................................4
Simplified main circuit diagram...............................5
Main circuit components.......................................5-8
Control cable connectors.......................................9
Troubleshooting diagram........................................10
Control card A001 layout.......................................11
Control card A001 jumper..........................................11-12
Control card A001 leds.........................................12
IGBT gate pulse...................................................13
Voltage over the lower IGBT...................................14
Voltage after the secondary diode cards.....................15
Cooling unit control.................................................16
Structure (Kemppi WELDFORCE TM
4500)..................... 17
Notes...................................................................18
2