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Technical manual: SQUARE 940-2
DICTATOR Technik GmbH · +49 (0)821 246730 · [email protected] · www.dictator.de · 22.06.22
Motor parameters
In order to achieve an optimum adjustment of the door drive to the door different motor param-
eters can be adjusted. Amongst them are e.g.:
Motor Rating (adaption to the connected motor)
OPENING Speed / CLOSING Speed (separately adjustable)
Creep Speed before reaching the positions OPEN and CLOSED (speed is reduced before
reaching the final position, so that no separate final dampers are required, separately ad-
justable)
Acceleration & Deceleration Ramps: Depending on the door weight and its easy movement
Fast Stop: Adjustment of the Stop in closing and opening direction (separately adjustable)
EMERGENCY STOP: Adjustment of the STOP characteristics upon activation of the safety
equipment or by the Emergency Stop push button
The SQUARE 940-2 control system permits a great deal of different operating functions. When
choosing the operating mode the required safety equipment has to be provided. See also the
summary on the requirements of the EN 12453. A change to a “more dangerous” operating
mode (e.g. from dead man to impulse operation) is only permitted when providing the required
safety equipment.
The control system offers a high operating standard due to additional adjustment and connec-
tion possibilities
Position control
The SQUARE 940-2 control system is designed for a position control via encoder, integrated in
the door operator. This permits a very precise positioning of the door (depending on the travel
and the power transmission: max. 2 mm). However it is also possible to use separate limit
switches (4 pcs. required).
Relay contacts
The SQUARE 940-2 disposes of 5 relay contacts for controling signalling and warning devices.
There exists a large variety of adjusting possibilities. This permits e.g. the connection of signals,
warning sirens, the connection to a building surveying central, a floor conveyor system etc.
Diagnostics
The display on the lid of the casing indicates error codes or different diagnostic codes for the
input and output terminals. This helps also to locate a problem, even by telephone.
