51
If a control signal is applied at I2 within the active leaf release hold-open time, the lock also retracts
the vertical rods of the top/bottom lock and moves to the fully open final position. The passive leaf
can now be accessed. Once the hold-open time has expired, the lock moves into its initial position
and the signal contact 1 closes.
4.3 Voltage loss during motor-driven operation
If the power supply fails during motor-driven actuation, the motor stops and the lock remains in its
current position.
The door leaf can still be opened at any time manually via the door hardware.
To ensure that the lock also travels reliably to the initial position when the power supply fails, it must
be connected to an emergency power supply (B-54903-23-3-9 or external emergency power supply).
The purpose of the emergency power supply B-54903-23-3-9 is to lock
once only
, it cannot be used
for permanent motor-driven actuation of the lock. If the supply voltage at terminals G2 and V2 of
the controller B-54900-01-3-9 is insufficient, it will not process signals at inputs I1 and I2.
Fig.11: Motor-driven release of passive leaf with release of active leaf
In order to use the motor-driven lock at fire and smoke protection doors, it must be connected
to an emergency power supply!
WARNING
Summary of Contents for BKS B-1893 Series
Page 31: ...31 ...
Page 131: ...131 ...
Page 133: ...133 1 2 3 4 ...
Page 135: ...135 A 3 Profilfräsung A 3 Profile cutout A 3 Fraisage du profilé A 3 Fresado del perfil ...
Page 136: ...136 B 1893x B 1993x 10 2017 20734ES Designed in Germany Notizen Notes Notes Notas ...
Page 137: ...137 Notizen Notes Notes Notas ...
Page 138: ...138 B 1893x B 1993x 10 2017 20734ES Designed in Germany ...
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