User Manual

Rockwell Automation Publication 20P-UM001K-EN-P - July 2014 215
Chapter 4
Troubleshooting
This chapter provides information to guide you in troubleshooting the
PowerFlex DC drive. Included is a listing and description of drive faults (with
possible solutions, when applicable) and alarms.
Faults and Alarms
A fault is a condition that always stops the drive and prevents it from starting
until the fault condition is corrected. There are two fault types.
An alarm indicates a drive error condition that does not stop the drive, but may
prevent it from starting. There are two types of alarms.
Topic Page
Faults and Alarms 215
Drive Status 216
Manually Clearing Faults 217
Fault Descriptions 218
Clearing Alarms 224
Alarm Descriptions 224
Common Drive Symptoms and Corrective Actions 227
Testpoint Codes and Functions 229
Type Description
1 User Configurable This type of fault allows you to configure the drive’s response to the condition that
caused the error.
• When configured for a fault, the drive will be stopped, the error condition will be
annunciated on the HIM or a via digital output (if programmed) and the drive will
not be allowed to start until the fault condition is corrected.
• When configured for an alarm, the error condition will be annunciated on the
HIM or via a digital output (if programmed) and the drive will continue to run
and/or be allowed to start.
• When configured for ignore or disabled, the error condition will not be
recognized by the drive or be indicated on the HIM or via a programmed digital
output.
2 Non-Configurable This type of fault is always enabled and will cause the drive to stop running to
protect the drive and/or motor from damage. In some cases, drive or motor repair
may be required. The cause of the fault must be corrected before the fault can be
cleared (via a fault reset using the HIM or programmed digital input). The fault will
be reset on power up after repair.
Type Description
1 User Configurable This type of alarm indicates a drive error condition but does not stop the drive from
starting or running. However, if this type of alarm is left uncorrected, a fault
condition may eventually occur.
2 Non-Configurable This type of alarm is always enabled and will prevent the drive from starting until
the alarm condition is corrected.