Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control (PanelView 550) - Manual (Page 73)

Rockwell Automation Publication 7000-UM151E-EN-P - January 2013 73
Component Definition and Maintenance Chapter 3
Figure 51 - Removing Resistor Bank from PowerCage (heatpipe model)
6. Place the new resistor bank assembly back into the PowerCage.
7. Slide the retaining rod into place and push the clips back into place.
8. Connect the leads to the resistor bank
9. Install the PowerCage as outlined in
Removing the PowerCage on page 67 .
Sharing Resistors
Sharing resistors provides equal voltage sharing when using matched devices in
series. SGCT PowerCages for 2300V systems do not need matched devices and
have no sharing resistor.
SCR PowerCages always have sharing resistors even if matched devices are not
necessary. Sharing resistors in SCR PowerCages provide a diagnostic function.
You can verify the resistance value of the sharing resistors without removing the
PowerCage from the cabinet. For more information, see
Snubber Testing on
page 265 .
RESISTOR
BANK
RESISTOR RETAINING
BRACKET