ABB ACH550-UH HVAC Podręcznik użytkownika - Strona 8
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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.
3. Press UP and Down 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 following table lists the alarms by code number and describes each.
Alarm
Code
2001
2002
2003
2004
2005
Diagnostics
Alarm listing
below to find and address the root cause of the problem.
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.
Over voltage controller is active. Check for and correct:
OVERVOLTAGE
• Static or transient overvoltages in the input power supply.
• Insufficient deceleration time (parameters 2203
2206
Under voltage 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:
I
O COMM
• Fault setup (3018
• Communication settings (Group 51 or 53 as appropriate).
• Poor connections and/or noise on line.
Description
2).
ACCELER TIME
2).
DECELER TIME
DIRECTION
COMM FAULT FUNC
ACH550-UH User's Manual
1 and
ACCELER TIME
1 and
DECELER TIME
to allow direction change (if
and 3019
COMM FAULT TIME
).