Interlock Application Scheme # 34 - Time Delay and Solenoid Release

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Interlock Application - Time Delay and Solenoid Release

Scheme # 34
To prevent opening of guard B for a pre-determined time after removal of power.

Interlock Application Scheme # 33 - Time Delay and Solenoid Release

Starting switch normally closed. Key A-1 is held in starting switch interlock. Guard B (or door) is locked closed by means of type D (detachable) interlock.

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6.

Open starting switch.
Turn key A-1 in L-O interlock on switch to lock open. Key A-1 is now free.
Insert key A-1 in time delay key release unit (type TDKRU) and rotate to start the time delay action.
Signal light energized and key A-2 can be removed after the prescribed time elapses. Key A-1 is now held.
Insert key A-2 in L-C interlock (type D) on guard B and turn to unlock. Key A-2 is now held.
Open guard. Service person can remove key A-3 and hold until the service is complete. Thereby ensuring that the key sequence cannot be reversed until the service is complete and the guard is locked closed again.

Reverse sequence to restore service.

Links for more interlock application scheme information:

Contents | Introduction | Symbols Legend | Scheme Book

Scheme # 1
Scheme # 2
Scheme # 3
Scheme # 4
Scheme # 5
Scheme # 6
Scheme # 7
Scheme # 8
Scheme # 9
Scheme # 10
Scheme # 10A
Scheme # 11 Scheme # 12

Scheme # 13
Scheme # 14
Scheme # 15
Scheme # 16
Scheme # 17
Scheme # 17A Scheme # 18
Scheme # 19
Scheme # 20
Scheme # 21
Scheme # 22 Scheme # 23
Scheme # 24

Scheme # 25
Scheme # 26
Scheme # 27 Scheme # 28
Scheme # 29
Scheme # 30
Scheme # 31
Scheme # 32
Scheme # 33 Scheme # 34
Scheme # 35
Scheme # 35A
Scheme # 36

Scheme # 37
Scheme # 38 Scheme # 39
Scheme # 40
Scheme # 41
Scheme # 42
Scheme # 42A
Scheme # 42B
Scheme # 43
Scheme # 43A
Scheme # 44
Scheme # 45
Scheme # 45A