Emergency closing with repeated closing
If the door is opened by hand after an electrical emergency closing, it will close again.
Break-out unit PSB
Enables door/side screens to be broken outwards in case of emergency.
See page 13.
Interlocking
Used between two operators when the first operator must close before the other one can open
(typical to reduce energy losses and not for security reasons). EXU-4 required.
Convenience battery UPS
Stand-by supply which gives continued operation during short power failure. EXU-3 or EXU-4 required.
External error indication
Obtained if a lamp or a buzzer is connected. EXU-4 required.
Key switches (flush and/or surface mounted)
Used to give opening impulse to the door in any programme selector setting.
The key switch can also open the door when power is switched off, if a battery is fitted.
Push button
Used to give opening impulse to the door.
Double carriage wheels
Used for door weights over 100 kg and for narrow door leaves as anti-tilt.
Emergency opening
Opens the door in any programme selector setting (fireman's opening). EXU-4 required.
Synchronization
Used between the operators of two single sliding doors, working together in very large openings.
17Issue 2019-06-281005274-EMen-9.0
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