REG 316*4 1MRB520049-Uen / Rev. F ABB Switzerland Ltd
3-273
NrOfPhases
Number of phases evaluated for measurement:
1 : neutral current direct from an c.t. input
3 : neutral current derived internally from the three
phases.
CurrentInp
defines the c.t. input channel. All the current channels are
available for selection. In the case of a three-phase
measurement, the first channel (R phase) of the group of
three must be selected.
IB-Setting
Reference current to take account of discrepancies with re-
spect to I
N
.
BlockingInp
I/P for the external blocking signal.
F: - unused
T: - function always blocked
xx: - all binary I/P's (or O/P's of protection functions).
Trip
Tripping signal.
Start
Pick-up signal.
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