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Output relay
module
12
The output relay module SPTR 6B3 is located
behind the system front panel of the relay to-
gether with the power supply module. The out-
put relay module forms its own withdrawable
relay module after removal of the system front
Fig. 6. Block diagram for the output relay module SPTR 6B3.
TS1/U1
Tripping signal of U
TS2/U1
Tripping signal of U
SS1/U2
Starting signal of U>-stage
TS1/U2
Tripping signal of U>-stage
SS2/U2
Starting signal of U<-stage
TS2/U2
Tripping signal of U<-stage
BS1
External blocking input signal to U<-stage
A
Tripping output relay A (heavy-duty) for all stages, U
B
Alarm signal output relay B for stages U
C
Alarm signal output relay C for stage U>
D
Alarm signal output relay D for stage U<
E
Alarm signal output relay E for stage U
F
Self-supervision output relay F
IRF
Self-supervision input signal
SGR
Switchgroup for programming of starting and tripping signals
ENA
Enable output signal from control circuits
The input and output signals of the output re-
lay module are related to the fixed positions of
the relay modules which cannot be changed in
the relay housing. The output signals from each
relay module and PC-board location are wired
individually to the output relay module. It must
plate. The module contains all output relays,
A...F, the control circuits of the relays as well as
the electronic circuitry of the external control
inputs.
>-stage
0
>>-stage
0
>>, U> and U<
0
>
0
be pointed out that the relay modules have to
be plugged into the relay case as illustrated in
the figure on the front page in order to secure
that the connection diagram drawn for the re-
lay assembly also would correspond to the physi-
cal function of the protective device.
>, U
>>, U> and U<
0
0
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