History - ABB ACH550-01 User Manual

ACH550-01 User's Manual

History

For reference, the last three fault codes are stored into
parameters 0401, 0412 and 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
parameters), follow these steps:
1. In the control panel, Parameters mode, select parameter
0401.
2. Press EDIT.
3. Press the UP and DOWN keys simultaneously.
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
the problem.
Alarm listing
The following table lists the alarms by code number and
describes each.
Alarm
Display
code
2001
OVERCURRENT
2002
OVERVOLTAGE
Diagnostics and maintenance
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Group 04: FAULT HISTORY
below to find and address the root cause of
Description
The current limiting controller is active. Check for
and correct:
• excessive motor load
• insufficient acceleration time (parameters 2202
1 and 2205
ACCELER TIME
• faulty motor, motor cables or connections.
The overvoltage controller is active. Check for and
correct:
• static or transient overvoltages in the input
power supply
• insufficient deceleration time (parameters 2203
1 and 2206
DECELER TIME
2)
ACCELER TIME
2).
DECELER TIME
381