206 ACS550 User’s Manual
Diagnostics
Fault Resetting
The ACS550 can be configured to automatically reset certain faults. Refer to
parameter Group 31: Automatic Reset.
Warning! If an external source for start command is selected and it is active,
the ACS550 may start immediately after fault reset.
Flashing Red LED
To reset the drive for faults indicated by a flashing red LED:
• Turn the power off for 5 minutes.
Red LED
To reset the drive for faults indicated by a red LED (on, not flashing), correct the
problem and do one of the following:
• From the control panel: Press RESET
• Turn the power off for 5 minutes.
Depending on the value of 1604, FAULT RESET SELECT, the following could also be
used to reset the drive:
• Digital input
• Serial communication
When the fault has been corrected, the motor can be started.
History
For reference, the last three fault codes are stored into parameters 0401, 0412,
0413. For the most recent fault (identified by parameter 0401), the drive stores
additional data (in parameters 0402…0411) to aid in troubleshooting a problem. For
example, parameter 0404 stores the motor speed at the time of the fault.
To clear the fault history (all of the Group 04, Fault History parameters):
1. Using the control panel in Parameters mode, select parameter 0401.
2. Press EDIT (or ENTER on the Basic control panel).
3. Press UP and Down at the same time.
4. Press SAVE.
Correcting Alarms
The recommended corrective action for alarms is:
• Determine if the Alarm requires any corrective action (action is not always
required).
•Use "Alarm Listing" below to find and address the root cause of the problem.
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