GE Industrial Solutions AF-650 GP MultiPulse Drive Panel - Manual (Page 21)

MULTIPULSE DRIVE PANEL
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TEST CHART for VFD with diodes connected to BUS CAPACITORS
Diode Meter RED Diode Meter BLK Expected Actual
L1 +DC Bus 0.2-0.6VDC
L2 +DC Bus 0.2-0.6VDC
L3 +DC Bus 0.2-0.6VDC
+DC Bus L1 Charging
+DC Bus L2 Charging
+DC Bus L3 Charging
L1 -DC Bus Charging
L2 -DC Bus Charging
L3 -DC Bus Charging
-DC Bus L1 0.2-0.6VDC
-DC Bus L2 0.2-0.6VDC
-DC Bus L3 0.2-0.6VDC
TEST CHART for (R2, S2, T2) or (2,5,8) with Bus removed
Diode Meter RED Diode Meter BLK Expected Actual
R2 +DC Bus Cathode 0.2-0.6VDC
S2 +DC Bus Cathode 0.2-0.6VDC
T2 +DC Bus Cathode 0.2-0.6VDC
+DC Bus Cathode R2 Open
+DC Bus Cathode S2 Open
+DC Bus Cathode T2 Open
R2 -DC Bus Anode Open
S2 -DC Bus Anode Open
T2 -DC Bus Anode Open
-DC Bus Anode R2 0.2-0.6VDC
-DC Bus Anode S2 0.2-0.6VDC
-DC Bus Anode T2 0.2-0.6VDC
TEST CHART (R3, S3, T3) or (3,6,9) with Bus removed
Diode Meter RED Diode Meter BLK Expected Actual
R3 +DC Bus Cathode 0.2-0.6VDC
S3 +DC Bus Cathode 0.2-0.6VDC
T3 +DC Bus Cathode 0.2-0.6VDC
+DC Bus Cathode R3 Open
+DC Bus Cathode S3 Open
+DC Bus Cathode T3 Open
R3 -DC Bus Anode Open
S3 -DC Bus Anode Open
T3 -DC Bus Anode Open
-DC Bus Anode R3 0.2-0.6VDC
-DC Bus Anode S3 0.2-0.6VDC
-DC Bus Anode T3 0.2-0.6VDC