Emergency Stop (Optional); Encoder (Optional) - Wahlberg 255.700 User Manual

Ac motor controller
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Emergency Stop (Optional)

WARNING! By default, the emergency stop is NOT enabled!
The product can be configured with an emergency stop; by default, the emergency stop is not
enabled.
The DMX control from a lighting desk should always have a set up so there is a button that sets
the speed of the unit in operation to 0%. Normally lighting desks have a "blackout" button that
sets all intensity channels to 0% and this will also cause the motor to stop when assigned
correctly.
If the emergency stop switch is activated the red Error LED will be lit and the screen display
shows: 'EMERGENCY STOP PRESSED':
The emergency stop switch is connected to the male 4 pole XLR connector on the unit. Pin 1 and
Pin 4 should be powered with 12-15 Volt DC to enable operation of the unit.
Emergency Stop
1: GND
2: NC
3: NC
4: E-Stop
(12-15VDC)

Encoder (Optional)

The encoder input is used for position feedback from a Tacho sensor that is mechanically
connected to the motor shaft.
A Tacho sensor can be found in many different manufactures and variants when it comes to the
dimensions, attachment and the resolution.
Using mode 3 or 4 with a Tacho sensor feedback connected, a reset of the motor position is
needed at power up, and the reset can simply be done by running the motor forward with
channel 5 until the forward limit switch has been reached; setting channel 5 to 0% then returns
the motor to the start position.
It is also possible to reset the motor position immediately whenever one or more limit switch is
activated during operation, see LIM RESET menu on page 21. for more details.
Encoder
1: GND
2: TACHO 0/A
3: TACHO 1/B
5: +15VDC
255.805.001
13
Date: 2021-03-12

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