Functions
2.5 Monitoring Functions
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
77
2.5.2.3 Settings
2.5.2.4 Information List
2.5.3 Malfunction Responses of the Monitoring Functions
The malfunction responses of monitoring equipment are summarized in the following.
2.5.3.1 Description
Malfunction Responses
Depending on the type of malfunction discovered, an annunciation is sent, a restart of the processor system is
initiated, or the device is shut down. After three unsuccessful restart attempts, the device is also shut down.
The readiness relay opens and indicates with its NC contact that the device is malfunctioning. Moreover, the
red "ERROR" LED lights up on the front cover and the green "RUN" LED goes out. If the internal auxiliary
voltage also fails, all LEDs are dark. Table 2-5 shows a summary of the monitoring functions and the malfunc-
tion responses of the device.
Addr. Parameter Setting Options Default Setting Comments
8201 FCT 74TC ON
OFF
ON 74TC TRIP Circuit Supervision
8202 Alarm Delay 1 .. 30 sec 2 sec Delay Time for alarm
No. Information Type of In-
formation
Comments
6851 >BLOCK 74TC SP >BLOCK 74TC
6852 >74TC trip rel. SP >74TC Trip circuit superv.: trip relay
6853 >74TC brk rel. SP >74TC Trip circuit superv.: bkr relay
6861 74TC OFF OUT 74TC Trip circuit supervision OFF
6862 74TC BLOCKED OUT 74TC Trip circuit supervision is BLOCKED
6863 74TC ACTIVE OUT 74TC Trip circuit supervision is ACTIVE
6864 74TC ProgFail OUT 74TC blocked. Bin. input is not set
6865 74TC Trip cir. OUT 74TC Failure Trip Circuit
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