Rockwell Automation Publication 520-UM001K-EN-E - August 2021 157
Chapter 4
Troubleshooting
This chapter provides information to guide you in troubleshooting the
PowerFlex 520-series drive. Included is a listing and description of drive faults
with possible solutions, when applicable.
Drive Status The condition or state of your drive is constantly monitored. Any changes will
be indicated through the integral LCD display.
See Display and Control Keys
on page 59 for information on drive status
indicators and controls.
Faults A fault is a condition that stops the drive. There are two fault types.
Topic Page
Drive Status 157
Faults 157
Fault Descriptions 159
Common Symptoms and Corrective Actions 162
ATTENTION: Risk of injury or equipment damage exists. Drive does not
contain user-serviceable components. Do not disassemble drive chassis.
Fault Types
Type Fault Description
1 Auto-Reset/Run
When this type of fault occurs, and A541
[Auto Rstrt Tries] is set to a value greater
than “0,” a user-configurable timer, A542 [Auto Rstrt Delay], begins. When the timer
reaches zero, the drive attempts to automatically reset the fault. If the condition that
caused the fault is no longer present, the fault will be reset and the drive will be
restarted.
2 Non-Resettable
This type of fault may require drive or motor repair, or is caused by wiring or
programming errors. The cause of the fault must be corrected before the fault can
be cleared.
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