Fault; Alarm / Fault Messages; Fault Handling - ABB ACS5000 User Manual

10.3.2.2. Fault

A fault shuts down the drive. The type of shutdown depends on the origin of the
fault.
Depending on the type of fault, the drive opens the main circuit breaker (MCB) or
keeps it closed:
– Class 1 faults (FC 1) open the MCB.
– Class 2 faults (FC 2) do not open the MCB.
Since the MCB is controlled and monitored entirely by the drive, no external
opening command must be given to the MCB when a fault condition occurs.
A fault condition must be corrected and the fault be manually reset before the drive
can be started again.

10.3.2.3. Alarm / fault messages

When an alarm or a fault occurs, a specific message is saved in the fault history of
the drive. Information on the 64 most recent fault and alarm events are saved.

10.3.3. Fault handling

The faults are entered into the fault buffer as they occur and are numbered:
– The last fault entered has number 1.
– The first fault entered has the highest number.
Information of the fault classification (eg, FC 1 or FC 2) is also saved when the first
fault of the fault class is active. Date and time stamps facilitate fault tracing,
especially when a fault leads to several subsequent faults.
Example:
1) +Fault AMC: Fault Class 2
2) +Fault PPCS Communication
3) +Fault AMC: Fault Class 1
4) +Fault DC Undervoltage
In the above example:
1) +Fault AMC: Fault Class 2
2) +Fault PPCS Communication
3) +Fault AMC: Fault Class 1
4) +Fault DC Undervoltage
For more information on alarms and faults, see "Appendix G - Signal and
parameter table".
PRODUCT
ACS5000W
DOCUMENT KIND
User manual
PREVENTIVE AND CORRECTIVE MAINTENANCE
2008-01-08 16:58:24.3770
2008-01-08 16:58:24.3760
2008-01-08 16:56:02.1170
2008-01-08 16:56:02.1170
Classifies the fault
Represents a subsequent fault that
occurred 2 min. 22 s than the first fault
Classifies the fault
Reason for the failure of the drive system as
it occurred first
DOCUMENT ID.
3BHS799208 E01
REV. LANG. PAGE
F en 158/178