Automatic wiring instructions for mining valve electric devices

Main power is supplied by connecting the positive DC power or AC line to the brown wire and the negative DC power or AC neutral to the blue wire.

The control signal is used to operate the electric valve actuator and is connected to the green wire and should be at the same voltage as the brown wire used for main power.

Here a control switch will be placed to actually operate the valve.

When power is supplied to the green wire, the actuator will move in a counterclockwise direction until the first end of the travel limit switch reaches 90 degrees. At this point, the switch stops the actuator by shutting off the motor. As long as the actuator is at rest, the motor does not consume power.

To drive the actuator back to 0 degrees in a clockwise direction, simply disconnect power to the green wire. The motor will start and drive the actuator back to its original position.

When the actuator is fully returned to 0 degrees, the other end of the travel limit switch stops the motor. The actuator comes with a single-pole double-throw auxiliary switch that can be used to signal the valve position.

To use this feature, supply a constant positive DC or AC line power to the white wire. When the actuator is at 0 degrees, one contact of the switch will close and power supplied to the white wire will be conducted to the red wire.