ABB ACS380 Series - Indications; Warningfault history

346 Fault tracing
Indications
 Warnings and faults
Warnings and faults indicate an abnormal drive status. The codes and names of
active warnings and faults are displayed on the control panel of the drive as well as in
the Drive composer PC tool. Only the codes of warnings and faults are available over
fieldbus.
Warnings do not need to be reset; they stop showing when the cause of the warning
ceases. Warnings do not latch and the drive will continue to operate the motor.
Faults latch inside the drive and cause the drive to trip, and the motor stops. After the
cause of a fault has been removed, the fault can be reset from parameter 31.11 Fault
reset selection) such as the control panel, Drive composer PC tool, the digital inputs
of the drive, or fieldbus. Reseting the fault creates an event 64FF Fault reset. After
the reset, the drive can be restarted.
Note that some faults require a reboot of the control unit either by switching the power
off and on, or using parameter 96.08 Control board boot – this is mentioned in the
fault listing wherever appropriate.
 Pure events
In addition to warnings and faults, there are pure events that are only recorded in the
event log of the drive. The codes of these events are included in the Warning
messages table on page 348.
Warning/fault history
 Event log
All indications are stored in the event log. The event log stores information on
• the last 8 fault recordings, that is, faults that tripped the drive or fault resets
• the last 10 warnings or pure events that occurred.
See section Viewing warning/fault information on page 346.
Auxiliary codes
Some events generate an auxiliary code that often helps in pinpointing the problem.
On the control panel, the auxiliary code is stored as part of the details of the event; in
the Drive composer PC tool, the auxiliary code is shown in the event listing.
 Viewing warning/fault information
The drive is able to store a list of the active faults actually causing the drive to trip at
the present time. The drive also stores a list of faults and warnings that have
previously occurred.