PowerFlex Digital DC Drive User Manual -
Publication 20P-UM001C-EN-P - July 2008
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.
For information on…
See
page…
Common Drive Symptoms and Corrective Actions 4-10
Testpoint Codes and Functions
Type Description
➀
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.
➁
Non-Configurable
This type of fault is always enabled and will cause the drive to stop
running in order 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
➀
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.
➁
Non-Configurable
This type of alarm is always enabled and will prevent the drive from
starting until the alarm condition is corrected.