The Delayed Release Module is a small, versatile module, suitable for many simple interface applications where a voltage free relay output is required. For example, it may be triggered from a low current source such as the signal output from an Intruder Alarm Control Panel and used to switch on lights or extra sounders. It can be used with Access Control and Door Entry systems to power the door release for an extended time.
The module can be selected to either:
1) LATCH ON after removal of the trigger input until reset.
2) HOLD ON until a pre-set time delay has elapsed. (Delayed Release) Normally adjustable from Zero to 60 seconds. (Longer times to order)
3) TRANSISTORISED RELAY with time set to zero, the relay follows the input trigger.
TWO TRIGGER INPUTS
1) -ve start. 0 volts applied to TB2
2) +ve start. +5 volts to +12 volts applied to TB3
LATCHED MODE: (Diode D4 IN): After removal of trigger input, the relay will latch ON until the unit is reset by shorting the RESET PINS. (Maybe by remote push button.)
NON-LATCHED (TIMED) MODE: (Diode D4 OUT): After removal of the trigger input, the relay will hold ON until the on-board timer has timed out. This is adjustable from 0 to 60 seconds. With the timer set to zero, the relay will switch on and off as the trigger input is applied to either TB2 (0 volts) or TB3 (+ volts). The relay contacts are rated at 3 amps at 12 volts DC.