Functions
6-142 7SA522 Manual
C53000-G1176-C119-2
set to ∞. This does not suppress the pick-up annunciations, but merely prevents the
timer from expiring.
The setting parameter ,!7HOHS%, (address ) determines if it is possible to
use the binary input “!2&,QVW75,3” to bypass the trip delay times 7,SK! (ad-
dress ) and 7,! (address ). The binary input (if assigned) is common
to all stages of the overcurrent protection. With ,!7HOHS%, = <HV it is therefore
determined that the I>–stages trip without time delay following pick-up, if an operate
signal is present at the binary input; if the setting is ,!7HOHS%, = 1R the set trip
time delays always come into force.
If the I>-stage is to trip when switching the line on to a fault with or without a short de-
lay, 627)7LPH'(/$< (address , see above and refer to Sub-section “Gener-
al”), the parameter ,!627) (address ) is set to Yes. We recommend, however,
not to choose the sensitive setting for the switch on to fault function as energyzing of
the line causes a large fault current. It is important to avoid that the selected stage
picks up in a transient way when energizing the line.
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