Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 111)

Rockwell Automation Publication 7760-UM001D-EN-P - October 2014 111
Troubleshooting Chapter 8
9. Measure DC resistance between "C1" and "C2" at the gate driver boards.
The value should be 32.5 ±1.7 k. If this point is open, the sharing resistors
are damaged, or wire connections are open. Repair or replace the
PowerBrick (refer to Appendix C).
10. If the PowerBrick is replaced, ensure that all components are securely
connected per
Figure 48 . Check DC resistance values per step 5 above.
11. Replace the PowerBrick in the power pole assembly.
Figure 48 - PowerBrick Component Wiring Diagram
Thermistor
SCR1
SCR2
Sharing Resistors
Snubber