Control Card A004 Layout (2800/3500); Control Card A001 Operation Check - Kemppi MasterTig 3500 Service Manual

Control card A004 layout (Master / Mastertig 2800/3500)
X6
F1 1,6AT
R1
X5
X4
Control card A001 functional testing
Control card power supply ?
(2 x 13 Vac)
Temperature watch PTC ?
Set value information ?
Control card A001 develops the IGBT gate pulses. If the power supply part is OK, the
fuses are intact, the temperature watch PTCs are OK and correct set value info is received
from the potentiometer, then the gate pulses should be seen on connectors X10 and X11.
When the machine is idling, one must note that it is actually running intermittently.
R13
R1
R13 Voltage (Spark)
Power (Spark)
IGBT gate pulses
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