The restart delay time permits motor cooling if the device has tripped due to a temperature rise.
Possible indications on the display: RsDel
Blocking current monitoring
If the load current overshoots the value of the set threshold for overshoot (I▲) by a multiple of
n during operation, a blocking current error has occurred. The tripping delay time that is running
due to the current threshold overshoot is stopped and the outputs are switched.
Indication on the display: n x I▲
Residual current monitoring
If residual current monitoring has been activated (I >> = yes) and the total current of the load
currents at terminals 1/L1 - 2/T1, 3/L2 - 4/T2 und 5/L3 - 6/T3 rises above the permissible threshold
(S00: 1.5 A / S0: 4 A), the ON-delay time onDel, the tripping delay time Del, and the restart delay
time RsDel are stopped and both the CO contact and the semiconductor output change their
switching state immediately (≤ 200 ms).
Indication on the display: I >> = yes
Nominal fault current of the summation current transformer
The 3UL22 summation current transformers dier in size (size of the let-through opening) and
within each size by dierent nominal currents for which the summation current transformers are
rated.
For the 3UG4624 fault current monitoring relay to be able to indicate the real fault current, the
nominal fault current IΔn of the connected summation current transformer must be set.
Possible indications on the display: IΔn
Phase sequence monitoring
If phase sequence monitoring has been activated and the load currents exhibit the wrong phase
sequence, the CO contact and the semiconductor output will change their switching status
immediately (≤ 200 ms).
Possible indications on the display:
Parameters
SIRIUS 3UG4 / 3RR2 monitoring relay
286 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005
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