Instruction Manual

PowerFlex® 700S and 700H Frame 12 DC Bus Connector Kit 31
Publication PFLEX-IN022A-EN-P
4. Complete the forward and reverse biased diode tests on the Output Power
Modules as indicated in Table E
through Table H below.
Important:If the drive fails any of these measurements, replace all Output
Power Modules. Refer to the Hardware Service Manual for
PowerFlex 700S and 700H Drives (Frame 12), publication
PFLEX-TG004…, for details.
Table E Forward Biased Diode Tests - Output Power Modules for Power Structure #1
Meter Leads
Nominal meter reading+-
DC- 1U/T1
Meter should display “.0L” (zero load)
DC- 1V/T2
DC- 1W/T3
1U/T1 DC+/R+
(1)
(1)
If the drive does not contain the brake chopper option, the DC+/R+
terminal will be labeled DC+.
1V/T2 DC+/R+
1W/T3 DC+/R+
Table F Forward Biased Diode Tests - Output Power Modules for Power Structure #2
Meter Leads
Nominal meter reading+-
DC- 2U/T1
Meter should display “.0L” (zero load)
DC- 2V/T2
DC- 2W/T3
2U/T1 DC+/R+
(1)
(1)
If the drive does not contain the brake chopper option, the DC+/R+
terminal will be labeled DC+.
2V/T2 DC+/R+
2W/T3 DC+/R+
Table G Reverse Biased Diode Tests - Output Power Modules for Power Structure #1
Meter Leads
Nominal meter reading+-
1U/T1 DC-
Meter should beep once and value
should gradually rise to about 0.5V
1V/T2 DC-
1W/T3 DC-
DC+/R+
(1)
(1)
If the drive does not contain the brake chopper option, the DC+/R+
terminal will be labeled DC+.
1U/T1
DC+/R+ 1V/T2
DC+/R+ 1W/T3
Table H Reverse Biased Diode Tests - Output Power Modules for Power Structure #2
Meter Leads
Nominal meter reading+-
2U/T1 DC-
Meter should beep once and value
should gradually rise to about 0.5V
2V/T2 DC-
2W/T3 DC-
DC+/R+
(1)
(1)
If the drive does not contain the brake chopper option, the DC+/R+
terminal will be labeled DC+.
2U/T1
DC+/R+ 2V/T2
DC+/R+ 2W/T3