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6.3. Jumper position
The fail mode of the Cobalt-mini is factory set as Fail Safe, i.e. in the event of a power cut the Cobalt-mini will unlock.
Before the lock is installed this can be changed to Fail Secure by repositioning the jumper located next to the 7-way
plug on the end of the lock. Select the desired jumper location as indicated:
7. OPERATION
7.1. Fail Safe Operation
Assume the lock is installed and wired, the door is open and there is voltage
applied
to the
BLUE
wire. As the door
closes the Cobalt-mini senses the door approaching and activates the bolt pin to pull the door into alignment. The
Bolt Position and Door Position monitors will have changed state as the door is moved into place and secured.
To unlock the door, voltage is removed from the
BLUE
wire. The Cobalt-mini will immediately release and will do so
even when significant load is being applied to the door. With the door now open the Bolt Position and Door Position
monitors change state again. The Cobalt-mini will remain unlocked as long as the door is open but will instantly re-
lock when voltage is applied to the
BLUE
wire and the door is closed.
In the event of a power failure, the Cobalt-mini unlocks.
7.2. Fail Secure Operation
Assume the lock is installed and wired, the door is open and voltage is
removed
from the
BLUE
wire. As the door
closes the Cobalt-mini senses the door approaching and activates the bolt pin to pull the door into alignment. The
Bolt Position and Door Position monitors will have changed state as the door is moved into place and secured.
To unlock the door, voltage is applied to the
BLUE
wire. The Cobalt-mini will immediately release and will do so even
when significant load is being applied to the door. With the door now open the Bolt Position and Door Position
monitors change state again. The Cobalt-mini will remain unlocked as long as the door is open but will instantly re-
lock when voltage is removed from the
BLUE
wire and the door is closed.
In the event of a power failure, the Cobalt-mini locks if the door is closed.
Fail Safe
= Fail Unlocked
= Power To Lock
= PTL
Fail Secure = Fail Locked
= Power To Open
= PTO
