Page 273 - IRSEM_Main Book

Example of Fault
Fault Name Ref: Fault Information Momentary Confirmed
Message
24 Route Released without a) ASR UP / G(N)LR Up and S1 Route released
Sequential Route Relays in b) Concerned route TSSLR DN or TPZR DN or TLSR DN or without sequential
Route Picking up RDSO TRSR DN or UYRs Down or U(R)Ss Up. C route relays in

c) Emergency route cancellation, NJPR DN, AJTR3 /JR Dn. route picking up
25 Signal assuming Green with S1 Signal assuming
At the time of DR/DECR is picked up, RWKR in the
Points in the Route Reverse RDSO C Green with 31
corresponding Route are picked up then it is Fault.
Point Reverse
26 Home/Main Line Starter S1 Home Signal
Signal assuming Green with When DR/DECR Of Home/Main Line starter Signal is up assuming Green
RDSO C
Adv Starter Danger and if the Advance Starter RECR is up then it is Fault. with S2 Adv Starter
Danger
27 Advance Starter Off without S2 Advance starter
Line Clear HR/DR UP and concerned Line clear relay DN. C Off without Line
Clear
T1, T2 and T3 are track circuits in sequence. Length of
T2 is fed in the logic option
a) Counter starts when T2 goes DN with T1 already DN.
Over Speeding at
M

28 Over Speeding RDSO b) Counter stops when T3 goes DN with T2 already DN.
1TPR On Main

c) Time interval between (a) and (b) is less than length line/Loop line
of T2 divided by maximum permissible speed by
more than 10%.

Chapter 11: Dataloggers and Predictive Maintenance Systems Page 231 of 535