Doc No. FM0713 Issue C Page 24
12. LOCK RELEASE
Depending on the type of door the most appropriate electric lock release and mounting kit should be selected
for each installation.
The lock should operate from 12V DC for direct connection to the Entel Ultra door entry or PAC access control
system, if an AC lock or higher voltage DC lock is used then a separate PSU will be required.
If a PAC or other access control system is being used to release the same door lock then see Section 15 for the
correct method of interfacing the two systems.
12.01 LOCK TYPES
Depending on the type of lock fitted (i.e. fail safe or fail secure) the door panel can be wired to either remove
power or apply power to release the lock.
12.02 LOCK SUPPRESSION
A reverse bias diode or a Varistor/MOV must be fitted directly across all DC lock terminals to prevent voltage
transients from the lock coil causing malfunction and possible long term damage to the Entel Ultra and/or
access control system.
Please note it is not acceptable to fit the suppression device in the door panel or at any
other point on the wiring, it must be on the lock terminals.
0V
DC LOCK ONLY
LOCK RELAY NC1/NO1
Diode Type: 1N4001 or MOV Type: GNR07D330K
12.03 LOCK CONNECTION
The lock relay common terminal (C1) should be linked to +ve (12V DC) inside the Entel Ultra door panel.
Connect a magnetic lock +ve terminal to the door panel lock relay normally closed output (NC1)
Connect an electric ve terminal to the door panel lock relay normally open output (NO1)
In both cases the lock –ve terminal is connected to the door panel –ve (0V).
12.04 LOCK RELEASE DURATION
The time the door lock remains released from the resident’s phone or the Press to Exit button is independently
programmable;
The lock release duration from the resident’s phone can be set from 0 to 30 seconds (default 7 seconds).
The lock release duration from the Press to Exit button can be set from 1 to 120 seconds (default 10 seconds).
See Section 17.09 for programming details.
If a PAC access control system is being installed the PTE time will be set on the PAC.
The duration the lock remains released by the key fob is also set on the PAC.
Magnetic door locks are fail safe.
These locks require power to keep the door locked.
Basic electric strikes are normally fail secure.
These locks require power to allow the door to open.
