Page 265 - IRSEM_Main Book

Example of Fault
Fault Name Ref: Fault Information Momentary Confirmed
Message
When RECR is up continuously for more than 2 seconds
- in that condition if UCR/LR/U(R)S is up and HR/GR2 is S1 Signal Flying
9 Signal Flying Back to Danger RDSO M C (120 Sec)
down and signal replacement track(TPR) is up and back to Danger
EGGNR down, then it is Signal Flying back to danger.

The TIME difference between JSLR UP and NJPR UP is
S1 Timer setting
10 Timer Setting More RDSO greater by more than 10% (more than 132 seconds for M
More
120 seconds timer) of the prescribed time.
101 WNR Button
11 Button Stuck Up Button relay is up for more than specified time 20 Sec C
Relay Stuck Up
In between two sequential TPRs Down to Up (To
ensure it is train movement) if the status of NWKR or
12 Point Loose Packing RDSO RWKR Changes more than 2 times and status of EWNR C 59 Point Loose
Packing
not changed (Point emergency operation not done)
then it is Loose Packing.

13 Signal Bobbing without If HR/DR is up and HECR/DECR changes its status from
Design Problem (i.e Signal
Up to Dn to Up is in between 500 msec to 2 Sec and S1 HECR Signal
Control Relay not Dropped)
HECR/DECR is not operated along with HR/DR then it is M Bobbing without
Sig Not Applicable Bobbing without design problem. Design Problem
ECR is triggering sig Not Applicable.
14 Signal Bobbing with Design
If HR/DR is up, HECR/DECR changes its status from Up
Problem (i.e Signal Control to Dn to Up is in between 500 msec to 2 Sec and S1 HECR Signal
Relay Dropped)
HECR/DECR is operated along with HR/DR then it is Sig M Bobbing with
Not Applicable Bobbing with design problem.ECR is Design Problem
triggering sig Not Applicable.

15 Signal not Lowered even Same as Logic no.19 C
Operation is Valid

Chapter 11: Dataloggers and Predictive Maintenance Systems Page 227 of 535