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Technical manual: SQUARE 940-2
DICTATOR Technik GmbH · +49 (0)821 246730 · [email protected] · www.dictator.de · 22.06.22
The most important functions that can be executed with the SQUARE 940-2 are described
below.
Basically, the door can be operated in automatic mode (a short press on the respective oper-
ating element triggers the operation command) or deadman mode (door moves only as long
as the respective button is pressed). In addition, it is also possible to mix both operation modes
(automatic/deadman) (e.g. automatic OPEN/deadman CLOSE). If changes occur to certain
functions in deadman mode, these are expressly mentioned.
OPEN:
Door moves to the stored OPEN position or until the OPEN limit switch is reached and
automatically stops there.
Person OPEN:
Door moves to the end position stored for person opening and stops there
automatically:
CLOSE:
: Door moves to the stored CLOSED position or until the CLOSED limit switch is reached
and automatically stops there.
Automatic closing:
Different times can be stored for the positions OPEN and PERSON OPEN.
The programmed time starts to run as soon as the door has reached the respective position.
When the time has elapsed, the door closes automatically.
Stop:
The stop command can be programmed to stop at different speeds in the OPEN and
CLOSE directions. With a stop command, the door stops with a corresponding stopping dis-
tance.
Emergency STOP:
When the EMERGENCY STOP button is pressed, the door stops immediate-
ly (set max. permissible slowing-down path in accordance with EN 12453).
Flip Flop:
Alternating impulse OPEN/CLOSED. Door can only be closed when completely
open (see reversal of movement).
Safety device(s) (SHE):
Stopping distance see EMERGENCY STOP. The SHE can be parame-
terized for the closing direction, the opening direction and the opening and closing directions.
The activation of the SHE can be hidden shortly before reaching the end position.
If the safety device is defective, the control unit displays an error code. Emergency operation of
the door can be achieved by setting the emergency operation in the control unit.
Motion reversal:
As an additional safety function, the direction of a door movement in prog-
ress can only be changed in the OPEN direction (closing command can be overwritten with
opening command). An opening command CANNOT be overwritten with a closing command.
Reference run:
After each power failure, the controller first requests a reference run. In this case
it searches for the reference point (normally the mechanical stop in position OPEN or CLOSED).
The door must be moved to the reference point by continuously pressing the respective direction
key (stop CLOSED = CLOSE key, stop OPEN = OPEN key) at the jog frequency speed. Normal
door operation is then possible again.
3. Controller functions
