Reply to "help with wiring for MTH operating crossing gates 30-11012"

stan2004OGR Forum Member

rrman posted:
So blue wire is the control "hot" wire that drives the motor direction. Since AC is used for gates, use the positive sine wave to drive motor one way, and negative sine wave the opposite. Any body dissected one to ascertain my guess?

In this thread I posted a schematic and related info on how it operates. Rather than using positive and negative halves of AC to power the motor, it uses a H-bridge to reverse motor direction from a 5V DC bus. The mechanism can even be powered by DC voltage.

11/6/194:14 PM

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