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Open impulse / close impulse ( external key)
These two inputs enable opening and closing the door, apart from the usual working modes from the selector.These
Inputs are impulsive and have priority over working modes and other inputs. KB input enables opening the door and
KC input closing the door.
There are different devices that we can connect to these inputs. The most commonly used is the external key. The
external key has two positions. One to connect to KB to open the door and the other to connect to KC to close the door.
In the same way, we can connect other devices such as card readers, transponders, access controls…
Each input works as follows :
Open impulse ( KB)
Each KB impulse generates an opening clycle. If it star from closing position, opens the door and after one second in
open position it closes. Beside that, the operator pass to the working mode that define the selector ( digital or key one).
Even if we are activating KC it does the opening cycle.
In case of network power failure, every activation of KB opens the door with battery.
Close impulse ( KC)
This input enables closing the door but the function is not same as the “door close” working mode. It is a more secure
closing , as “night mode”, because it disables the digital selector. Only the person holding the key can open the door or
enable the use of the selector. The “night mode” it is displayed as a “close mode” with a Key icon.
Each pulse of KC runs the door to its closed position from any working mode. The only way to exit “nigt mode” is to
activate KB input.
In case of power failure, each KC impulse will run the door to its closed position using the battery.
- Connection:
Open impulse
Close impulse
Open impluse (KB)
Close impulse ( KC)
