Safety Precautions; About Error Codes - Allen-Bradley 8720MC-RPS065 User Manual

Safety Precautions

About Error Codes

Troubleshoot the 8720MC-RPS Unit
This chapter provides troubleshooting tables and related information for your
8720MC-RPS regenerative power supply.
Topic
Safety Precautions
About Error Codes
Error Codes
Access and Clear the Error Log
Recover From Fatal Errors
Troubleshoot the 8720MC-RPS Unit
Observe the following safety precautions when troubleshooting the
8720MC-RPS regenerative power supply.
ATTENTION: Capacitors on the DC bus can retain hazardous voltages after
input power has been removed. Before working on the 8720MC-RPS unit,
measure the DC-bus voltage to verify it has reached a safe level or wait five
minutes for the DC bus to discharge completely. Failure to observe this
precaution could result in severe bodily injury or loss of life.
ATTENTION: Do not attempt to defeat or override the module fault circuits.
You must determine the cause of a fault and correct it before you attempt to
operate the system. Failure to correct the fault could result in personal injury
and/or damage to equipment as a result of uncontrolled machine operation.
ATTENTION: Provide an earth ground for test equipment (oscilloscope) used
in troubleshooting. Failure to ground the test equipment could result in
personal injury.
When an error occurs in the 8720MC-RPS unit, an error code corresponding
to the error is shown on the display. The error codes are two or three letter
codes flashing on the display.
Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
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