Rockwell Automation 20C PowerFlex 700H Drives Programming - Manual (Page 63)

Rockwell Automation Publication 20C-PM001F-EN-P - March 2012 63
Troubleshooting Chapter 3
Faults and Alarms A fault is a condition that stops the drive. There are three fault types.
An alarm is a condition that, if not addressed, may stop the drive. There are two
alarm types.
See Fault and Alarm Descriptions on page 64 .
Manually Clear Faults
Type Fault Description
1 Auto-Reset Run When this type of fault occurs, and [Auto Rstrt Tries] (see page 32 ) is set to a value
greater than “0,” a user-configurable timer, [Auto Rstrt Delay] (see page 32 ) 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 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.
3 User Configurable These faults can be enabled/disabled to annunciate or ignore a fault condition.
Type Alarm Description
1 User Configurable These alarms can be enabled or disabled through [Alarm Config 1] on page 44 .
2 Non-Configurable These alarms are always enabled.
Step Key(s)
1. Press Esc to acknowledge the fault. The fault information will be
removed so that you can use the HIM.
2. Address the condition that caused the fault.
The cause must be corrected before the fault can be cleared.
3. After corrective action has been taken, clear the fault by one of these
methods.
– Press Stop
– Cycle drive power
– Set parameter 240 [Fault Clear] to “1.”
– “Clear Faults” on the HIM Diagnostic menu.
Esc