45
d) Link for fire protection
When the link is intact only short-term releases of the door leaf are possible.
e) Service plug B 5528 0931
f) Connecting terminals for supply voltage 24 V DC, 2–4.2 A
g) Connecting terminals for supply voltage for external devices 24 V DC, max 1 A
(e.g. I/O module)
h) Service terminals
i) Supply voltage for control inputs 24 V DC
j) Connecting terminals for control inputs I1 and I2
Control input I1
Release of active leaf (only latch trigger extends)
Control input I2
Release of active and passive leaf (latch and deadbolt triggers extend, vertical rods retract)
k) Connecting terminals for signal outputs at lock
Signal contact 1 ("Locked by motor" position reached)
Signal contact 1 (terminal 41 and 51) closes as soon as the motor-driven shoot-bolt lock has
reached its initial position. During this process, the latch and deadbolt triggers are retracted
and the top and bottom locking move to the locked position. The actual automatic locking
operation of the passive leaf is only performed once the passive-leaf control lock B 1895 has
been triggered by the closing door leaf.
Signal contact 2 ("Unlocked by motor" position reached)
Signal contact 2 (terminal 42 and 52) is closed as soon as the shoot-bolt lock has been driven by
the motor to the final position of the actuated release mode (release of active and passive leaf).
l) Connecting terminals for deadbolt and latch switching contact
Deadbolt monitoring (only with B-2393x)
The deadbolt monitoring signal is output potential-free via the deadbolt monitoring relay
contact (terminal 43 and 53) as soon as the deadbolt of the active leaf lock engages in the
shoot-bolt lock.
Latch (latchbolt) monitoring
The latch or latchbolt monitoring signal is output potential-free via the latch(latchbolt)
monitoring relay contact (terminal 44 and 54), as soon as the latch or latchbolt of the active
leaf lock engages in the shoot-bolt lock. If the contact opens, the active leaf is released and
can be opened, e.g. by a door drive.
An external emergency power supply or emergency power backup B-54903-23-3-9 is a
mandatory requirement for fire protection approval.
Permanent releases of the door leaf are only possible once the link has been severed, the fire
protection approval is invalidated when the link is severed.
WARNING
WARNING
If the deadbolt monitoring is actuated when the deadbolt is moved manually to the locked
position (only B-2393x), control signals are not processed at the inputs I1 and I2.
This means that the door cannot be unlocked by the motor.
NOTE
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