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Para No. 11.2.1(b) Annexure: 11-A1

Datalogger Fault Logics – An Example

Example of Fault
Fault Name Ref: Fault Information Momentary Confirmed
Message
The time difference between ECR (UP to DN to UP) is
S1 HECR Signal
in between 500 msec. to 2 Sec which should be taken M
1 Signal Bobbing RDSO Bobbing
as 1 count and for satisfying the fault logic 2 to 3
counts should happen within 10 Sec.
The time difference between TPR (UP to DN to UP) is in
between 50 msec to 1 Sec which should be taken as1 61 TPR Track
2 Track Bobbing RDSO M
count and for satisfying the fault logic 2 to 3 counts Bobbing
should happen within 10 seconds.

The time difference of (NWKR/RWKR) (UP to DN to UP) is
in between 500 msec. to 2 Sec which should be taken as 1 59 NWKR Point
3 Point Bobbing RDSO M
count and for satisfying the fault logic 2 to 3 counts should Bobbing
happen within 10 Sec. At that time TPR is UP.

1. If NWKR, RWKR both are down for more than time
interval then it is point failure.
4 Point Failure RDSO M C (120 Sec) 59 Point Failure
2. In case of Siemens − WKR1 is Down for more than
the given time interval.

1. In case of siemens − The time difference between
WKR1 Down to Up is in between the set time interval.
51 NWKR Point
5 Sluggish Operation of Point RDSO 2. Other than siemens − time interval of NWKR down to M Sluggish Operation
RWKR up OR RWKR down to NWKR up is more than set
time.

Chapter 11: Dataloggers and Predictive Maintenance Systems Page 225 of 535