Phase Failure; Automatic Error Acknowledgment - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

13.7

Phase Failure

A failure of one of the three motor or mains can lead to a damage in the frequency
inverter, the motor and the mechanical drive components. To prevent damage to
these components, the phase failure is monitored. Parameter
allows to adjust the behavior in case of a failure.
Phase Supervision
Mains
10 -
Error Switch-Off
Mains & Motor
11 -
Error Switch-Off
Mains
20 -
Shutdown
Mains & Motor
21 -
Shutdown
13.8

Automatic Error Acknowledgment

The automatic error acknowledgment enables acknowledgment of the faults Overcur-
rent F0500, Overcurrent F0507 and Overvoltage F0700 without intervention by an
overriding control system or the user. If one of the aforementioned errors occurs, the
frequency inverter switches the power semi-conductors off and waits for the time
stated with the parameter
speed of the machine is determined with the quick Search Run function and synchro-
nized to the rotating machine. The automatic error acknowledgment makes use of
"Quick Synchronization" operation mode, regardless of the
645. The information given on this function in chapter "Search run" must be
mode
observed.
With parameter
automatic error acknowledgements which are permitted within 10 minutes.
An acknowledgement repeated above the permissible number within 10 minutes will
result in the frequency inverter being switched off.
The errors Overcurrent F0500, Overcurrent F0507 and Overvoltage F0700 have sepa-
rate error acknowledgement counters.
No.
578 Allowed no. of auto-acknowl.
579 Restart delay
Operating Instructions ACU
06/13
576
In the case of a phase failure, the fault switch-off takes
place after 5 minutes, fault F0703 is displayed. During
this time, the warning message A0100 is displayed.
The phase monitor switches the frequency inverter off:
− immediately with error message F0403 in the case of
a motor phase failure,
after 5 minutes with error message F0703 in the case
−
of a mains phase failure.
In the case of a mains phase failure, the drive is stopped
after five minutes, fault F0703 is displayed.
The drive is stopped:
− immediately, in the case of a motor phase failure,
− after 5 minutes in the case of a mains phase failure.
Restart delay
Allowed no. of auto-acknowl.
Parameter
Description
Phase supervision
Function
579. If the error must be acknowledged, the
Search run operation
578, you can define the number of
Settings
Min. Max.
0 20
0 ms 1000 ms
576
Fact. sett.
5
20 ms
153