Woodward 723PLUS Technical Manual page 99

Manual 26482
Symptom Cause
Engine does not 1. Unit is clutched in as
accelerate and/or slave or appears to be
decelerate when remote clutched in as slave.
reference moved.
2. Remote speed setting
input not functioning.
3. Slow speed reference
ramp rate.
4. Communications with
companion failed.
5. Mechanical governor in
control.
Woodward
723PLUS Digital Marine Control
Test/Remedy
1a. If unit is clutched in last, it becomes the slave unit. The
slave unit will use the master speed reference set point.
1b. Unit is attempting to clutch in as the slave unit. The speed
reference will be determined by the master unit again.
2. Remote speed setting device not functioning. View the
remote speed setting input and verify proper operation. See
the remote speed setting calibration for troubleshooting. The
723PLUS control will not track the remote above or below the
rated and idle speed settings.
3. Speed reference ramp rate set too low. Increase the speed
reference ramp rate to desired rate for acceleration or
deceleration.
4. Unit will run at idle speed when communications with the
companion are lost if CONFIG SPD CONTROL – IDLE WHEN
COMM FAIL is set to TRUE.
5a. Mechanical governor in control of the engine speed.
723PLUS control not in control of speed. Manual override
device may be active. Verify actuator command is at 0% or
100%. See actuator manual for more information.
5b. Actuator wires may be open. Check continuity from
723PLUS control to actuator.
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