ABB ACS2000 DFE User Manual page 136

136 ACS2000 DFE UM 3BHS360367 ZAB E01 REV. K
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10.3 Alarm / fault indications
When ACS2000 senses a fault condition in the system, it logs the fault,
generates an alarm and if necessary shuts down the drive.
10.3.1 Messages
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References
When a failure occurs in the drive or in the equip-
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ment monitored by the drive (eg, main circuit
10-2 Alarm / fault
identification
breaker, transformer, cooling system), the CDP
control panel displays a corresponding alarm or
fault message and the alarm / fault lamp on the
control compartment door lights up:
• Fault: permanent light
• Alarm: flashing light
The message can be saved and viewed in the fault
history of the drive when a PC with DriveWindow,
DriveDebug or DriveMonitor is connected to the
drive. The fault history can also be called up on the
CDP control panel.
10.3.2 Error message levels
Two error message levels are used in the drive:
Alarm
An alarm does not shut-down the drive. However, a
persisting alarm condition can often lead to a fault
if the condition causing the alarm is not corrected.
An alarm cannot be reset manually. The alarm mes-
sage will be deleted from the display as soon as the
alarm condition has been corrected.
600.0 rpm
1 L ->
ACS2000
FAULT
*** ***
MCB CloseControl
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10-2
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.
When one or more serious faults occur, the mes-
sage ResetLocked will be shown on the panel.
Before resetting a serious fault, possible hardware
failures must be excluded and the troubleshooting
guide must be followed.
In case of serious fault - please contact local ABB
service.
WARNING
!
!
Resetting these faults without properly checking
the system can cause serious HW damage.