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Diagnostics / faults and alarms
10.2 Diagnostics
10.2.3
Indicating and rectifying faults
The device features a wide range of functions that protect the drive against damage if a fault
occurs (faults and alarms).
Indicating faults and alarms
If a fault occurs, the drive displays the fault and/or alarm on the AOP30 operator panel.
Faults are indicated by the red "FAULT" LED and a fault screen is automatically displayed.
You can use the F1 Help function to call up information about the cause of the fault and how
to remedy it. You can use F5 Ack. to acknowledge a stored fault.
Any alarms are displayed by the yellow flashing "ALARM" LED. The system also displays a
note in the status bar providing information on the cause.
Every fault and alarm is entered in the fault/alarm buffer along with time the error occurred.
The time stamp refers to the relative system time in milliseconds (r0969).
Activate the "Set date/time - AOP synchronization -> Drive" setting to date- and time-stamp
errors on the AOP30.
What is a fault?
A fault is a message from the drive indicating an error or other exceptional (unwanted)
status. This could be caused by a fault within the converter or an external fault triggered, for
example, from the winding temperature monitor for the induction motor. The faults are
displayed and can be reported to a higher-level control system via PROFIdrive. In the
delivery condition, the message "Drive fault" is also sent to a relay output. Once you have
rectified the cause of the fault, you have to acknowledge the fault message.
What is an alarm?
An alarm is the response to a fault condition identified by the drive. It does not result in the
drive being switched off and does not have to be acknowledged. Alarms are "self
acknowledging", that is, they are reset automatically when the cause of the alarm has been
eliminated.
704
Converter cabinet units
Operating Instructions, 11/2017, A5E36652151A
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