Operating Instructions ACTIVE 06/07112
112 Operating Instructions ACTIVE 06/07
12.8 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 these errors occurs, the frequency
inverter switches off the power semi-conductors and waits for the time defined by the
parameter
Restart Delay 579. If the error must be acknowledged, the speed of the
machine is determined via the quick catching function and it is synchronized to the
rotating machine. The automatic error acknowledgment makes use of quick catching
operation mode, regardless of the parameter for search run,
Operation Mode 645.
The information given on this function in chapter "Search run" must be observed.
With parameter
Allowed No. of Auto-Acknowl. 578, you can define the number of
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 separate error acknowledgement
counters.
Parameter Settings
No. Description Min. Max. Fact. sett.
578 Allowed No. of Auto-Acknowl. 0 20 5
579 Restart Delay 0 ms 1000 ms 20 ms
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