Manual

Chapter 3
Troubleshooting
Chapter 3 provides information to guide you in troubleshooting the LPM20
with High Performance Drive Control.
Faults and Alarms
A fault is a condition that stops the drive. There are two fault types.
An alarm is a condition that, if left untreated, may stop the drive. There are
two alarm types.
For information on ... See page ...
Faults and Alarms
3-1
Drive Status 3-2
Manually Clearing Drive Faults 3-3
Drive Fault Descriptions 3-3
Active Converter Fault Descriptions 3-3
Clearing Drive Alarms 3-3
Common Symptoms and Corrective Actions 3-4
Test Equipment Needed To Troubleshoot 3-6
Verifying That DC Bus Capacitors Are Discharged 3-6
Replacement Parts 3-7
Type Fault Description
➀
Non-Resettable This type of fault normally requires drive or motor repair. The cause of
the fault must be corrected before the fault can be cleared. The fault will
be reset on power up after repair.
➁
User Configurable These faults can be enabled/disabled to annunciate or ignore a fault
condition.
Type Alarm Description
➀
User Configurable These alarms can be enabled or disabled through [Alarm Config 1]
parameter.
➁
Non-Configurable These alarms are always enabled.