Rockwell Automation 20B Replacing a Balancing Resistor on a PowerFlex 700 Drive, Frames 8, 9, and 10 - Manual

Installation Instructions
Replacing a Balancing Resistor on a PowerFlex 700 Drive,
Frames 8, 9, and 10
Catalog Numbers SK-G1-RB1-F8, SK-G1-CBRB1-F8, SK-G1-RB1-F910, SK-G1-CBRB1-F910
Precautions and General
Information Qualified Personnel
Personal Safety
Topic Page
Precautions and General Information 1
Commonly Used Tools 2
Identifying Information on the PowerFlex 700 Drive Nameplate 2
Locating the Balancing Resistor 3
Replacing the DC+ Bus Bar with a Balancing Resistor 7
Additional Resources 17
ATTENTION: Only qualified personnel familiar with adjustable frequency AC
drives and associated machinery must plan or implement the installation,
startup and subsequent maintenance of the system. Failure to comply can
result in personal injury and/or equipment damage.
ATTENTION: To avoid an electric shock hazard, verify that the voltage on the
bus capacitors has discharged before performing any work on the drive.
Measure the DC bus voltage at the following points:
• +DC and -DC terminals of the power terminal block
• +DC terminal of the power terminal block and the chassis
• -DC terminal of the power terminal block and the chassis
The voltage must be zero for all three measurements.