10.11 Synchronization Troubleshooting
If you encounter a problem with Synchronization, it will more than likely one of the following; failure to
attempt to synchronize, synchronizing at different RPM’s or RPM variations of one or both engines while
synchronized. Each problem is distinct and the cause may differ depending on the type of Synch. Therefore,
each type is discussed individually.
10.11.1 Equal Throttle Synchronization
10.11.1.1 Basic Equal Throttle Synchronization Troubleshooting
A SYMPTOM: Will not synchronize
10.11.1.2 Servo Clutch Equal Synchronization Troubleshooting
A SYMPTOM: Will not synchronize
b.
Function Code E6 High Idle is
programmed to a value other than 00.0.
b.
Decide whether High Idle is required or not. If not required, set
the value of E6 to 00.0. If the High Idle feature is required, press
the Transfer Button for approximately 1/2 second to toggle to
Low Idle.
c.
The Governor or its Control Module is
incorrectly adjusted or faulty.
c.
After Causes a. and b. have been eliminated, contact a certified
engine mechanic to properly adjust.
Cause Remedy
a. Synchronization is Disabled a.
At the Station-in-Command, move both Control Head levers to
more than 5% of the speed range. Press and hold the transfer
button for 5 seconds.
If synch is disabled, the green LED will light as long as the button
is pressed.
If synch was enabled, the green LED would have blinked twice.
b.
The Serial Communication Harness is not
plugged into both Processors.
b. Plug the Serial Communication Harness into both Processors.
c.
The Port and Starboard Processors are
not set up for Twin Screw operation.
c.
Scroll to Function Code A1, on the Port and Starboard Processor.
Enter a Value of 02 into both Processors.
d.
The Port and Starboard Processors have
the same ID number.
d.
On the Port Processor, scroll to Function Code A0 and enter a
Value of 01.
On the Starboard Processor, scroll to Function Code A0 and enter
a Value of 02.
Cause Remedy
a.
The Processor(s) think Astern is being
commanded.
a.
Place both the Port and Starboard Processors into Warm-up
Mode by pressing the transfer button while moving the Control
Head levers to the Ahead detent. Both red LED’s on the Control
Head should be blinking.
If not, reverse the wires at pins 5 and 7 at the Control Head.
Change the Clutch direction with Function Code C5.
Cause Remedy