A1S Group Evo1-MCP 1, Technical Manual

Page: 42 / 84

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Override Switch wiring to the
motor control board (MCB)
Fire rated cable is required for all external wiring when using
override switches.
2 Core fire rated cable is required
When switches are wired to the motor control board (MCB) only the motor
connected to the board will retract
The egress switch (green) will retract the curtain whilst the button is held
pressed, once released the curtain will close back to the fire safe position.
The access switch (red) will retract the curtain to a set distance by a single
press of the button (impulse) the curtain will travel the set distance then the
curtain will close back to the fire safe position.
Wiring of an egress switch
The link wire must be used to power the
override circuits,
Link out Brake in + to ov
Use right hand override terminal
Brown to trig
Blue to -
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