Locking Element

For VdS, it is mandatory to prevent entering a set area. This is done by using a Lock Element which is mounted in the doorframe. The lock element consists of a small plastic bolt which locks the door in a SET state. The position of the bolt is signaled by Lock element – Lock or Lock element – Unlock outputs. This signal is checked during the setting process. If the “locked” information is not received, the setting fails.

If a lock element is located within an area, the exit timer will be restricted to a minimum of 4 seconds so that the lock element can be activated. When the exit timer reaches four seconds, the lock element will be activated for three seconds. When the exit timer expires, the Lock Element input must be in the closed state then the system will set.

If a lock element is opened during a set period it will be handled as an alarm zone.

If a lock element is closed during an unset process then it will be considered to be tampered and raise a tamper on the zone.

If the lock element fails to open after the unlock signal is sent to the device, then a trouble will be raised on that zone to signal that a mechanical failure has occurred.

If the Lock Element input (if configured) is not in the closed state when the exit timer expires, then the system will not set and a Fail to Set signal will be raised. The Lock Element – Unlock output will be activated.

The configuration requirements for the lock element are as follows:

• Outputs:

  – Lock Element – Lock

  – Lock Element – Unlock

• Inputs

  – Lock Element