Back Contacts in timer relay

[PJW]

Hello, i'm coming back!!!

If a signal has a facing point which is near of it and is detect and locked for overlap purpose and the timer relay is failed to start, what has to be the reaction of the system?
For example until changing the timer the signal cannot take a procced aspect?
Is the any typical circuit?
How is the general idea for Qrj1 timer relay when is faulty? Is there any way to understand the station master than the reason you cannot set the route is from overlap purpose?

Thanks a lot!

The treatment of facing points in the overlap varies between different railways and over vintages of standards. 
I am not sure if your question is really asking
a) about the detection of the points in the aspect of the signal reading up to the exit signal beyond which they are situated, or
b) but the fact that the points are subject to Time of Operation Locking. 

For b) when the berth track of the exit signal becomes occupied they become locked in their position until that track has been occupied so long that the train must be assumed to have stopped and therefore won't SPAD. 
In that case if the timer doesn't start then the points will remain locked indefinitely until the berth track is cleared.

For a) you'd be talking about a different timer designed to prevent the signal reverting to danger whilst the points are moving from one lie to the other; in that case if the timer didn't work then as soon as the initial detection of the points were lost then the signal would go back to danger.

Please express your question again and I'll try to understand what you really want to know