Velleman HAA9523S Mode D'emploi page 16

An interlock system needs 2 door controllers. This application uses 2 x HAA9523Ss with a simple crosswire
connection on "output 1 disable" and "interlock control output" terminals of both keypads. Link up the (-) GND
terminals of both keypads as common ground in order to achieve the interlock functions. Connection of the
green LED is optional. It will light up when the lock is active when connected.
• Use the keypad to open the door from the outside.
• Press the egress button to open the door from the inside.
• Connect the magnetic sensors on door 1 and 2.
• During the time that door 1 is open, door 2 is forced to keep closed and vice versa.
• Use the N.O. relay output for fail-secure locking device and the N.C. output for fail-safe locking device.
• Relay output 2 is independent and has no concern with the interlock system. It may be used for other
applications.
4. Basic wirings of an interlock system using 1 keypads and an interlock controller power supply (fig. 5)
This application uses one
HAA9523S and a power supply
with interlock controller. The
power supply provides power for
the whole system, including both
electric locks and the keypad.
Make sure the total power
consumption of the system does
not exceed the maximum power
ratings of the power supply,
especially if fail-safe locks are
used. The interlock function is
accomplished with a crosswire
connection of the "interlock
control output" and the "output 1
disable" terminals between the
keypad and the controller. Link up
a common ground between the
keypad and the power supply to
set up a power path and to
achieve the interlock functions.
• Use the keypad to open door 1 from the outside.
• Open door 2 with egress button A from the outside while door 1 is closed.
• Open door 1 from the inside with the egress button and open door 2 with egress button 2.
• Connect the magnetic sensors on door 1 and 2.
• During the time that door 1 is open, door 2 is forced to keep closed and vice versa.
• Use the N.O. relay output for fail-secure locking device and the N.C. output for fail-safe locking device.
• Relay output 2 is independent and has no concern with the interlock system. It may be used for other
applications.
9. Application Examples for the Auxiliary Facilities
(A) Tamper N.C. (fig. 6)
v2 15/11/2013
HAA9523S
16 VELLEMAN