Wiring - BQT YD30 Cobalt Installation And Operating Instructions Manual

6. WIRING

The COBALT is supplied with a 7-way wire loom that plugs directly into the lock. The wires are colour coded with
three being essential connections and four optional. Control of the lock is achieved by using the three power wires,
whilst door and bolt position monitoring are available when desired. Connect the COBALT as per the chart:
RED
POS
BLACK
NEG
BLUE
CTRL
VIOLET
NO
VIOLET
COM
WHITE
NO
WHITE
COM
6.1 Fail Safe Connection
When wiring the COBALT, the positive voltage is connected to RED, negative is connected to BLACK and a
switched positive voltage wire connected to BLUE. In Fail Safe configuration applying voltage to the COBALT
signals it to lock. The lock signal in Fail Safe configuration is active high.
Wire loom from lock
6.2 Fail Secure Connection
When wiring the COBALT, the positive voltage is connected to RED, negative is connected to BLACK and a
switched positive voltage wire connected to BLUE. In Fail Secure configuration applying voltage to the COBALT
signals it to unlock. The lock signal in Fail Secure configuration is active low.
Wire loom from lock
© BQT Solutions (SEA) Pte Limited
Positive connection to DC power supply (12–24V)
Negative connection to DC power supply (12–24V)
Switched positive control input
Contacts closed when bolt pins are extended, and
contacts open when bolt pins are retracted
Contacts closed when door is aligned, and contacts
open when door is open
WHITE
WHITE
VIOLET
VIOLET
BLUE
BLACK
RED
WHITE
WHITE
VIOLET
VIOLET
BLUE
BLACK
RED
Power
Bolt Position Switch
Door Position Switch
Door Position Switch
Bolt Position Switch
NC - Unlocked
NO - Locked
Door Position Switch
Bolt Position Switch
NO - Locked
NC - Unlocked
-
DC Power Supply
+
-
DC Power Supply
+
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