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Technical manual: SQUARE 940-2
DICTATOR Technik GmbH · +49 (0)821 246730 · [email protected] · www.dictator.de · 22.06.22
4.8 CONNECTION MOTOR BRAKE
Some door applications require the motor to be equipped with an electromechanical brake that
keeps the motor at standstill.
The wiring example on page 18 shows the application with an integrated power relay and a
230 VAC motor brake.
Set System Setup › Outputs › Power Relay = 1
Thus the power relay is active if the output frequency is > 0.
If a 24 VDC motor brake is used, the control unit SQUARE 940-2 must also be equipped with
an adapter board ( part no. 706095). This is located in the housing on the upper right-hand
side next to the control unit.
The adapter board in the housing is already wired at the factory on the control side, so that only
the motor brake has to be connected at the appropriate place.
4.9 CONNECTION TEMPERATURE SENSOR
All DICTATOR AC drives are supplied as standard with a temperature sensor in the motor. The
temperature sensor (NC) should always be connected to a stop input in the controller (input
freely configurable) to prevent any motor movement when triggered (protection against over-
heating).
4.10 ROTARY ENCODER
The encoder MIG is used for the SQUARE 940-2. This is connected to terminal strip X1 as
shown below:
Name:
Type:
7 (+12 V)
8 (A)
9 (B)
10 (0 V)
MIG
Incremental
BROWN
YELLOW
GREEN
WHITE
