6
following functions can be selected with the
switches of the SGR switchgroup on the front
panel:
Switch
Function
Factory User´s
setting
setting
SGR/1
Routes the external blocking signal to the neutral current module
1
SGR/2
Routes the start signal of stage I
0
>> to output relay D
1
SGR/3
Routes the start signal of stage I
0
> to output relay D
1
SGR/4
Routes the trip signal of stage I
0
>> to output relay D
1
SGR/5
Routes the trip signal of stage I
0
>> to output relay C
1
SGR/6
Routes the trip signal of stage I
0
>> to output relay A
1
SGR/7
Routes the trip signal of stage I
0
> to output relay C
1
SGR/8
Routes the trip signal of stage I
0
> to output relay B
1
Configuration of
output relays
The start signal of the I
0
> stage is permanently
wired to output relay F and the trip signal to
output relay A. The trip signal of the I
0
>> stage
is wired to output relay B. In addition, the
The circuit breakers can be directly controlled
with output relay A and output relay B. Thus
either operation stage may have its own output
relay or two separate circuit breakers can be
controlled with the same protection relay.
