SA502 24V DC 5 Wire
SA502 is a five-wire, 24V DC connection for motorized valve actuators with open and closed position feedback. Prepare a 24V DC, 1.5A power supply for the connection described below. The required current rating varies with the actuator model.
Wiring Diagram
Wire Connections
Disconnect power before making or changing connections.
- Connect 24V DC positive (+) to the red wire.
- Connect 24V DC negative (−) to the black wire.
- Keep the red and black wires connected to the positive and negative supply terminals during normal operation.
- Connect the green wire to positive 24V DC whenever the valve needs to be open.
- The green-wire supply can be switched through a PLC, relay or float switch. Keep it connected to positive 24V DC for as long as the valve needs to remain open.
Feedback Outputs
- Blue wire: Open-position feedback.
- Yellow wire: Closed-position feedback.
The feedback output voltage is +24V DC.
Power Failure and Consumption
The valve is a stay-put type on power failure: it remains in its last position when power is lost.
The supplied guide states that consumption is zero when closed and approximately 20mA when open. The main operating power is consumed while the valve is moving.