Setting Notes - Siemens SIPROTEC 4 7SJ61 Manual

Functions
2.8 Monitoring Functions
contact (if the circuit breaker is closed) or through the bypass resistor R by the 52b circuit breaker auxiliary
contact. Only as long as the trip contact is closed, the binary input is short circuited and thereby deactivated
(logical condition "L").
If the binary input is continuously deactivated during operation, this leads to the conclusion that there is an
interruption in the trip circuit or loss of control voltage.
As the trip circuit supervision does not operate during system faults, the closed trip contact does not lead to a
fault message. If, however, tripping contacts from other devices operate in parallel with the trip circuit, then
the fault message must be delayed (see also
Alarm Delay. A message is only released after expiry of this time. After clearance of the fault in the trip
circuit, the fault message is automatically reset.
[7sj6x_ausloesekreis_1_binaerein-050906-he, 1, en_US]
Figure 2-49
The following figure shows the logic diagram for the message that can be generated by the trip circuit
monitor, depending on the control settings and binary inputs.
[7sj6x_ausloesekreis_meldelogik-150502-kn, 1, en_US]
Figure 2-50
2.8.2.2

Setting Notes

General
The function is only effective and accessible if address 182 (Section
Binary Inputs or 1 Binary Input during configuration, the appropriate number of binary inputs has
been configured accordingly for this purpose and the function FCT 74TC is ON at address 8201. If the alloca-
tion of the required binary inputs does not match the selected supervision type, a message to this effect is
generated ( 74TC ProgFail ). If the trip circuit monitor is not to be used at all, then Disabled is set at
address 182.
In order to ensure that the longest possible duration of a trip command can be reliably bridged, and an indica-
tion is generated in case of an actual fault in the trip circuit, the indication regarding a trip circuit interruption
is delayed. The time delay is set under address 8202 Alarm Delay.
128
Logic diagram of trip circuit supervision with one binary input
Message logic for trip circuit supervision
Figure 2-49). The delay time can be set via parameter 8202
2.1.1.2 Setting Notes) was set to either 2
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016