Victor CUTMASTER - Page 43

TROUBLESHOOTING CUTMASTER 10MM, 12MM
Manual 0-5230 6-7 Troubleshooting
DC Bus Testing Multimeter Lead Placement Voltage with Supply voltage OFF
Upper capacitor bank
Positive meter lead to TP 30
Negative meter lead to TP 29
0 VDC
Lower capacitor bank
Positive meter lead to TP 32
Negative meter lead to TP 31
0 VDC
Table 6-1 DC BUS, Multimeter Set to Measure DC volts
IGBT Testing Multimeter Lead Placement Diode Voltage
IGBT 1
Positive meter lead to TP 3
0.2000 to 0.8000 VDC
Negative meter lead to TP 2
IGBT 2
Positive meter lead to TP 5
0.2000 to 0.8000 VDC
Negative meter lead to TP 4
IGBT 3
Positive meter lead to TP 8
0.2000 to 0.8000 VDC
Negative meter lead to TP 7
VIGBT 4
Positive meter lead to TP 10
0.2000 to 0.8000 VDC
Negative meter lead to TP 9
PFC IGBT 1
Positive meter lead to TP 14
0.2000 to 0.8000 VDC
Negative meter lead to TP 13
PFC IGBT2
Positive meter lead to TP 12
0.2000 to 0.8000 VDC
Negative meter lead to TP 11
PILOT IGBT1
Positive meter lead to TP 26
0.2000 to 0.8000 VDC
Negative meter lead to TP 25
Table 6-2 IGBT’s, Multimeter Set to Measure Diode Voltage