SC700 (Engine: Peripherals) (MP 501/601 Only)

SC700-00

C

ARDF Inverter Motor Error

The home position cannot be detected even if the machine reties 3 times consecutively.

* Conditions to detect the home position: When the home position is detected by driving the ARDF inverter motor one rotation.

• ARDF inverter motor defective

• ARDF position sensor defective

• IOB defective

• ARDF inverter motor defective

  1. Disconnect the power cord, and wait 5 seconds. Reconnect the power cord, and then turn the main power ON.

  2. Confirm that the connector of ARDF inverter motor is firmly connected. If necessary, connect the connector all the way in.

  3. Reconnect the following connector.

     • ARDF Inverter Motor – IOB connector

  4. If the connector is broken, shorted, or grounded, replace the connector. If the connector pin is deformed, replace the connector.

  5. Replace the ARDF inverter motor.

• ARDF position sensor defective

  1. Rotate the ARDF inverter motor by hand to check whether it is unusually difficult to rotate.

  2. Check that the ARDF position sensor is not disengaged and is correctly positioned. And check that the actuator correctly shields the light.

  3. Reconnect the following connector.

     • ARDF Position Sensor – IOB

  4. If the connector is broken, shorted, or grounded, replace the connector.

  5. Replace the ARDF position sensor.

• IOB defective

  1. Update the engine software to the latest version.

  2. Replace the IOB.