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The power and control (CL) wires
must be permanently connected
6. WIRING
The YD25 is fitted with eight connectors; five are optional and provide monitoring of the lock pin and door positions.
Control of the lock is achieved by using the remaining three wires however a reduced function two wire mode is
available if desired. Connect the YD25 as per the following chart.
+
1
Power
Positive connection to DC power supply (12
– 24V)
CL
2
Switched positive control input
-
3
Negative connection to DC power supply (12
– 24V)
C
4
Door Position Switch
Common contact of the door position monitor
NO
5
Normally open contact of the door position monitor
C
6
Bolt Position Switch
Common contact of the bolt position monitor
NO
7
Normally open contact of the bolt position monitor
NC
8
Normally closed contact of the bolt position monitor
6.1. Three wire connection
The three wire mode requires a continuous
connection of power to terminals 1 (+ve) and 3 (-ve).
Wiring the lock for fail safe or fail secure configurations
is identical.
6.2. Two wire connection
The two wire mode differs between fail safe and fail secure configurations but both require a switched power supply
connected to terminals ‘1’ and ‘3’. In addition, for fail safe configuration the dip switch needs to be repositioned as
shown in
Section 6.4 - Dip switch positions.
Wire links
(not supplied)
are connected from termin
als ‘2’ to ‘4’ and ‘1’
to ‘5’ for fail safe. A wire link is connected between terminals ‘1’ and ‘2’ for fail secure.
Fail Safe
Fail Secure
6.3. Monitors
The five monitor connectors found on the YD25 are available to provide door and bolt position feedback. If desired
wires can be run from these connections to integrate with access control or alarm systems to provide full monitoring.
When a two wire fail safe operation is chosen the door position monitor is not available.
The bolt position switch is
an optional connection
Switched power supply
permanently connected
The monitor switches are optional connections
The monitor switches are optional connections
Switched power supply
permanently connected
