5.5 Functions on the extension unit EXU-SI
Also see page 54 for more information.
5.5.1 KILL function
In the event that the KILL circuit is activated, all Safety Functions of the door
will be overridden causing the door to close even though an object or person
may be in the door's path of travel, and therefore may be subject to injury. This
mode of operation is most generally used to isolate an area in the event of a
fire.
• During KILL, the control will ignore all signals and close door(s) at normal speed.
• If impulse controlled KILL: The operator will resume normal operation after a KILL RESET. When
manual RESET, jumper must be removed and reset button connected to terminal No. 8 and
Ground.
• Or if state controlled KILL: When KILL signal is no longer active, operator will resume normal
operation.
• The behavior of the lock during KILL depends on the group of parameters, see page 71.
• The KILL input may be connected to either a normally open contact with GND as reference or
a normally closed contact with QTST as reference, depending of group of parameters, see page
71.
5.5.2 Function of locks
• The lock output only works when the function switch is in OFF or EXIT. If no function switch is
used, OFF or EXIT must be connected to GND (0 VDC).
• The control has an available output of DC for external locks
• DIP-switches to select 12 or 24 V DC, locked with or without power
• DIP-switch for lock release and potentiometer for opening delay
• DIP-switch for lock kick to overcome binding in the locking device during closing
• Input to unlock signal from lock. Potentiometer for opening delay is to be set to max. As soon
as unlock signal is received the door will start to open. The lock output signal shall be active
low.
• If the door cannot fully close, the operator will perform a lock retry (once if manually open,
twice if automatically open).
5.5.3 Panic bar
Panic bar can be disabled by the relay function on the extension board EXU-SA and an external
power supply. Panic bar will then only be active during KILL. See Changing group of parameters
(Level 2) on page 71.
5.5.4 Program selector (wall mounted)
• Input for OPEN, EXIT and OFF (if no program selector, AUTO is default).
Note! In OFF-position the operator will comply with the Low Energy Regulation.
5.5.5 Power failure mode (backup batteries are installed) – optional
• In case of power failure, normal operation can be carried out with impulses from the KEYSWITCH.
• Two contacts are available for connection of 2 x 12 V batteries (NiMH).
• DIP-switch for monitoring of batteries is also available. Faulty battery will be indicated by the
LED on the CU-ESD. If selected the relay on EXU-SA can give a contact information. An audible
warning signal can be achieved by using the accessory board AIU. It is connected to the 24 VDC
and plugged into the EXU-SA relay output terminal. The Battery Monitoring always has to be
1009728-en-9.0Issue 2021-02-2416
5 How the ASSA ABLOY SW200 works
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