ABB RELION REX640 Technical Manual page 1205

1MRS759142 C
REX640
Technical Manual
(+)
A
PSM100x.X2:4
PSM100x.X2:5
I
PODP1
PSM100x.X2:6
PSM100x.X2:7
TCS
PODP1
PSM100x.X2:8
Rext
coil
(-)
GUID-8FB06708-6B5D-48CA-8A2D-47140F5650F2 V1 EN
Figure 650: Operating principle of the trip-circuit supervision, single-pole
connection
If TCS is required only in a closed position, the external shunt resistance can be
omitted. When the circuit breaker is in the open position, TCS sees the situation as a
faulty circuit. One way to avoid TCS operation in this situation is to block the
supervision function whenever the circuit breaker is open.
It is also recommended to block the supervision function when the trip output is active.
Otherwise, TCS issues an alarm if the trip remains active over the set TCS Operate
delay time.
Figure 651 shows a double-pole connection of the trip circuit supervision. For the
static output, this requires using SPO5 or SPO6 output in series of the circuit.
Section 6
Supervision functions
+
B
BIO1002.X2:14
TCS
SP06
BIO1002.X2:13
Rext
coil
-
1199