Functions
2.14 Monitoring Functions
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
182
2.14.2.2 Setting Notes
General
The number of circuits to be monitored was set during the configuration in address 140 74 Trip Ct Supv
(Section 2.1.1.2). If the trip circuit supervision is not used at all, the setting Disabled must be applied there.
The trip circuit supervision can be switched ON or OFF in address 4001 FCT 74TC. The number of binary inputs
that shall be used in each of the monitored circuits is set in address 4002 No. of BI. If routing of the required
binary inputs does not comply with the selected supervision mode, the alarm „TripCx ProgFAIL...“ is
given (with identification of the non-compliant circuit).
Monitoring with One Binary Input
The alarm for monitoring with two binary inputs is always delayed by approx. 1 s to 2 s, whereas the time delay
of the alarm for monitoring with one binary input can be set in address 4003 Alarm Delay. 1s to 2s are suf-
ficient if only the 7SD80 device is connected to the trip circuits as the trip circuit supervision does not operate
during a system fault. If, however, trip contacts from other devices are connected in parallel in the trip circuit,
the alarm must be delayed such that the longest trip command duration can be reliably bridged.
2.14.2.3 Settings
2.14.2.4 Information List
Addr. Parameter Setting Options Default Setting Comments
4001 FCT 74TC ON
OFF
OFF 74TC TRIP Circuit Supervision
4002 No. of BI 1 .. 2 2 Number of Binary Inputs per trip
circuit
4003 Alarm Delay 1 .. 30 sec 2 sec Delay Time for alarm
No. Information Type of In-
formation
Comments
6854 >74TC-1 TripRel SP >74TC-1 Trip circuit superv.:Trip Relay
6855 >74TC-1 Bkr.Rel SP >74TC-1 Trip circuit superv.:Breaker Rel
6856 >74TC-2 TripRel SP >74TC-2 Trip circuit superv.:Trip Relay
6857 >74TC-2 Bkr.Rel SP >74TC-2 Trip circuit superv.:Breaker Rel
6858 >74TC-3 TripRel SP >74TC-3 Trip circuit superv.:Trip Relay
6859 >74TC-3 Bkr.Rel SP >74TC-3 Trip circuit superv.:Breaker Rel
6861 74TC OFF OUT 74TC Trip circuit supervision OFF
6865 74TC Trip cir. OUT 74TC Failure Trip Circuit
6866 74TC-1 ProgFAIL OUT 74TC-1 blocked. Binary input is not set
6867 74TC-2 ProgFAIL OUT 74TC-2 blocked. Binary input is not set
6868 74TC-3 ProgFAIL OUT 74TC-3 blocked. Binary input is not set
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