Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 106)

106 Rockwell Automation Publication 7760-UM001D-EN-P - October 2014
Chapter 8 Troubleshooting
Figure 44 - Sensing Board with mounting hardware placement
Current Loop Power Supply The current loop gate driver (CLGD) boards mounted on each PowerBrick (see
Figure 46 ) receive power from two sources:
1. The snubber circuit (while the SCR power modules are active).
2. The current loop power supply, which maintains a pre-charge level of
power during periods when the SCR power modules are inactive (this
allows SCR gating while the snubber circuit is being charged).
Mounting Hardware
Cable Ties
Mounting Hardware
Wire Guide Channels
High Voltage Wires
Mounting Hardware Mounting Hardware