G-U BKS B-1893 Serie Manual De Instalación página 49

4. Functions / Application
4.1 Manual unlocking
The lock can be unlocked manually at any time by actuating the door hardware.
4.2 Motor-driven release
The motor-driven shoot-bolt lock B-1893x/B-1993x offers the option of releasing a 2-leaf door.
Two release modes are available:
- release of active leaf
- release of active and inactive leaf
If the deadbolt monitoring is actuated when the deadbolt is moved manually to the locked posi-
NOTE
HINWEIS
tion (only B-1893x), control signals are not processed at the inputs I1 and I2.
This means that the door cannot be unlocked by the motor.
4.2.1 Motor-driven release of active leaf
When a pulse (+24 V DC) is received at control input I1, the motor moves the latch trigger out thus
releasing the latch and/or latchbolt.
Signal contact 2 ("Unlocked" position reached, terminal 42 + 52) is closed. The active leaf can now be
opened. Once the hold-open time has elapsed (7 s in as delivered condition), the latch trigger is once
again retracted and the active leaf can close again. In addition, the signal contact 1 ("Locked"
position reached; terminal 41 + 51) is closed.
Fig.9: Motor-driven release of active leaf
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