Push pull panel entrance buttons

[merlin89]

On a panel when you press the entrance button and the F contact is made the (F)R relay energises. Is the FM contact also made thus energising the (FM)R relay, so that when the entrance button is released the (F)R drops but the (FM)R stays up until the button is then pulled thus dropping the (FM)R relay? If so what happens to the exit button when the next signal which is the exit signal is also an entrance signal for another route?
Many thanks

[PJW]

On a panel when you press the entrance button and the F contact is made the (F)R relay energises. Is the FM contact also made thus energising the (FM)R relay, so that when the entrance button is released the (F)R drops but the (FM)R stays up until the button is then pulled thus dropping the (FM)R relay? If so what happens to the exit button when the next signal which is the exit signal is also an entrance signal for another route?
Many thanks

F = made when button pushed (=from)
FM= made when button is pushed or in mid position; i.e. it is pull to break
So yes the (FM) relay will at that time already be up and yes once the (F)R drops the (S)R will be up until such time as a valid button is pressed as an exit and the route sets, or timeout occurs.
One a (S)R= start relay is up, the (TFR)R = transfer picks up thus making all buttons be regarded as possible exits rather than the start of a different route. Once a button is pressed there is an opportuniity to set a rouyte (for a time fixed by the DJR) after that the circuit resets to its quiescent state and with the (TFR)R down all buttons are regarded as entrances again.

[merlin89]

Many thanks again Peter