Rockwell Automation PF700 PowerFlex 700 Drive Components Replacement - Frame 9 - Manual (Page 52)

52 Rockwell Automation Publication 20B-IN025B-EN-P - January 2011
Chapter 3 Component Replacement Procedures
Balancing Resistor See Chapter 1 - Drive Components to locate the component detailed in these
instructions.
Remove Components
1. Read and follow the Safety Precautions on page 8 and Important Initial
Steps on page 10 .
2. Perform Remove Main Control Panel on page 22 .
3. Perform Remove Stacking Panel on page 25 .
4. Locate the Balancing Resistor as shown below.
5. Label and disconnect all wires for the Balancing Resistor.
Black: Negative (–) Busbar
Yellow: Bus Capacitor Busbar
Blue: Converter (+) Busbar
6. Remove the Balancing Resistor mounting screws.
7. Remove the Balancing Resistor and dispose of it properly.
Install Components
1. Install the new Balancing Resistor. Hand tighten the two mounting screws.
2. Reconnect all wires for the Balancing Resistor.
Black: Negative (–) Busbar
Yellow: Bus Capacitor Busbar
Blue: Converter (+) Busbar
3. Torque the two Balancing Resistor mounting screws to 2.9 N•m
(26 lb•in).
4. Reassemble remaining components in reverse order.
5. Replace all safety shields and enclosure covers before applying power to the
drive.
Screw for Resistor black wire
Screw for Resistor blue wire
Screw for Resistor yellow wire
Balancing Resistor and Mounting Screws