ABB SPAU 140 C User Manual And Technical Description page 11

Intermodular
control signals
The figure below illustrates the configuration
of the blocking and control signals (SGB) and
SGB/3
CS13
SGB/1
BS13
U1
U3 SGF/1
SGF/2
SGB/4
CS23
SGB/2
BS23
U2
SGF/5
SGF/6
Fig. 6. Control signals between the modules of the synchro-check relay SPAU 140 C and the
configuration switches.
U1,U2,U3 Measured voltages
CB13 Close permission/close command, stage 1
CB23 Close permission/close command, stage 2
ALARM Alarm signal from stages 1 and 2
BS13 External blocking signal to stage 1
BS23 External blocking signal to stage 2
CS13 External control signal to stage 1, request for CB closing
CS23 External command signal to stage 2, request for CB closing
IRF Signal for internal relay fault
SGF Switchgroup for configuring the functions of the synchro-check relay
SGB Switchgroup for configuring the blocking and command functions
SGR Switchgroup for configuring the alarm functions
I
SGR/1
CS13
NC13
BS13
CSF13
U1
SGR/3
U3
SC13
SGF/3
> 1
VC13
SGF/4
I I
SGR/5
CS23
NC23
BS23
CSF23
U3
SGR/7
U2
SC23
SGF/7 > 1
VC23
SGF/8
alarm signals (SGR), and the selection of the
check functions (SGF) of the stages.
IRF
CB13
>1
CB23
ALARM
SPCU 3D45
D
C
B
A
SPTU __ R4
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