Rockwell Automation 2364F RGU Isolation Board Replacement User Manual
Rgu™ isolation board replacement, Replacement kit instructions
 
Publication 2364F-5.13 June 1999
Replacement Kit Instructions
RGU™ Isolation Board Replacement
Contents
This document shows how to remove and replace the isolation board and 
burden resistors in a Regenerative DC Bus Supply Unit (RGU).
What This Kit Contains
Using the table below, verify that you have received the appropriate items in 
your kit.
If you have received an isolation board kit:
If you have received a burden resistor kit:
Note: Refer to Table A to verify that you have received the appropriate 
burden resistor kit.
Other Items Needed
Before you begin, be sure you also have the following:
•
Tools you will need for:
– Measuring voltages
– Removing, loosening, and tightening screws (including terminal
screws)
– Torquing screws (6 lb-in / 0.7 N-m)
•
Documentation:
– Your drive system schematics
– Publication 2364F-5.01, Regenerative DC Bus Supply Unit (RGU)–
User Manual
Note: If the existing burden resistors are damaged, you will need to 
order the appropriate resistor kit (see Table A on page 4).
For this part:
You should receive this quantity:
isolation board
1
ESD wrist strap
1
For this part:
You should receive this quantity:
burden resistors
2 (for Series A RGUs)
3 (for Series B RGUs)