Schüco S.B 1956 Manual De Instrucciones página 17

4.3
If the latchbolt trigger lever is actuated when the door is open, the latchbolt moves mechanically to the
"locked position". It would not be possible to close the door in this case.
If a door contact is connected, the lock identifies this condition (locked with door open), moves the deadbolt
back completely then, without observing a hold-open time, moves it forwards again to the "latch position".
The door can once again be locked automatically.
In cases where the trigger lever is repeatedly actuated due to manipulation or a malfunction, after being
triggered four times, the latchbolt remains in the "locked position" and the relay contact of the potential-free
function output opens (pin 11 + 12/pink + gray).
The relay contact is closed again if the control signal is repeated or if the lock is unlocked manually via the
locking cylinder. Actuation via the lever handle will not close the relay contact again.
4.4
If the power supply fails during motor-driven actuation, the motor stops and the latchbolt remains in its
current position.
14 BU GND
13 RD 24 V DC
9 GN 24 V DC
Fig.4: voltage loss during motor-driven operation
WARNING
The latchbolt can be moved to the latch or locked position at any time via the latch lever operation of the
cylinder.
To ensure that the latchbolt also locks securely when the power supply fails, the lock must be connected to
an emergency power supply (e.g. 268317 or external emergency power supply).
The purpose of the 268317 emergency power supply is to lock once only, it cannot be used for permanent
motor-driven actuation of the lock.
Schüco International KG · Karolinenstraße 1–15 · D33609 Bielefeld
Automatic resetting to latch position
(following actuation of the trigger lever with the door open)
Voltage loss during motor-driven operation
14 BU
13 RD
9 GN
In order to use the motor-driven lock at fire and smoke protection doors, it
must be connected to an emergency power supply!
14 BU
13 RD
9 GN
S.B 1956; S.B 1959
14 BU 14
13 RD 13
9 GN
10000429979-09.2016-02 | 17
BU
RD
9 GN