Correcting Alarms - ABB ACQ550-x1-06A6-2 User Manual

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The ACQ Control Panel provides additional information about the fault history. See
section
To clear the fault history (all of the
1. Using the control panel in the Parameters mode, select parameter 0401.
2. Press EDIT.
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 the table in section
the problem.
Alarm listing
The following table lists the alarms by code number and describes each.
Alarm
code
2001
2002
2003
2004
2005
2006
Diagnostics
Fault History Mode on page
Alarm listing
Display
Current limiting controller is active. Check for and correct:
OVERCURRENT
• Excessive motor load.
• Insufficient acceleration time (parameters 2202
2205
• Faulty motor, motor cables or connections.
Overvoltage controller is active. Check for and correct:
OVERVOLTAGE
• Static or transient overvoltages in the input power supply.
• Insufficient deceleration time (parameters 2203
2206
Undervoltage controller is active. Check for and correct:
UNDERVOLTAGE
• Undervoltage on mains.
The change in direction being attempted is not allowed. Either:
DIR LOCK
• Do not attempt to change the direction of motor rotation, or
• Change parameter 1003
reverse operation is safe).
Fieldbus communication has timed out. Check for and correct:
IO COMM
• Fault setup (3018
• Communication settings
Group 53: EFB PROTOCOL
• Poor connections and/or noise on line.
1 Analog input 1 is lost, or value is less than the minimum setting.
AI LOSS
Check:
• Input source and connections.
• Parameter that sets the minimum (3021).
• Parameter that sets the alarm/fault operation (3001),
49 for more information.
Group 04: FAULT HISTORY
below to find and address the root cause of
Description
2).
ACCELER TIME
2).
DECELER TIME
DIRECTION
COMM FAULT FUNC
(Group 51: EXT COMM MODULE
as appropriate).
ACQ550-U1 User's Manual
parameters):
1 and
ACCELER TIME
1 and
DECELER TIME
to allow direction change (if
and 3019
COMM FAULT TIME
or
).