Brother PR650C Owner's Manual

  Output is NPN open collector output.

          PCB internal circuit

    On the assumption that output activates the air valve (option part).

  Use a 24 VDC relay if not using a 24 V air valve.

          PCB internal circuit          External 24V relay

    No fuses are built in the output circuit. To prevent circuit damage when forming short output, it is

recommendable to install an external fuse on each output.

    Input is non-insulating IC input.

         PCB internal circuit                  Example of connection with proximity sensor

  Insulate input using a relay if not using a contact switch or a 24 V sensor.

        PCB internal circuit                       External relay

    Use a relay for electronic circuit whose maximum applicable load is 5 V and 1m A or less.