Woodward 723PLUS Technical Manual page 88

723PLUS Digital Marine Control
6. Verify that performance is satisfactory at all speed and load conditions or
repeat the above procedures as necessary to achieve acceptable
performance. Quick reversal (crash back) testing is recommended as part of
the dynamic setting verification.
7. While operating at minimum speed and load, record the 03 Actuator
Command % in the A**DISPLAY 1** menu. Select the 01 START FUEL
LIMIT in the H**START/MAX LIMITS** menu. Set at approximately 5% over
the recorded value.
8. While operating at full load, record the 03 Actuator Command % on the
Display Menu. Select the 03 MAXIMUM FUEL LIMIT set point on service
menu H**START/MAX LIMITS**. Set the limit approximately 10% over the
full load actuator output if desired or leave at 100%.
Checking the operation for both hot and cold starts is recommended to obtain the
optimum stability and response under all ambient conditions.
If needed, calculate the roll-off frequency for the firing torsional speed filter and
adjust the value at the prompt 09 SPEED FILTER1 HZ found under the
E**DYNAMICS DE-CLUTCHED** and F**DYNAMICS CLUTCHED** header to
the calculated number. If the speed filter is not needed, adjust SPEED FILTER
HZ 1 to 20 Hz to disable the speed filter. Always attempt to use the maximum
frequency for best response.
See Woodward Application Note 01304, Dynamic Adjustment
Procedure, 700-Series Controls, for more information on the
dynamics adjustments.
Torque Sharing Calibration
Torque Sharing is only as accurate as the Torque Sensor Input signals. During
torque load sharing, the engines should put out equal horsepower into the
reduction gear. This is usually measured by monitoring Exhaust Temperatures,
Cylinder Temperatures, and Manifold Air Pressures using external monitoring
devices.
Synchronizing, Clutching, and Loading Adjustments
Prior to testing the clutching and declutching of the 723PLUS control, the I/O
calibration, and engine start-up, and torque sharing calibration procedures must
be completed.
Be prepared to make an emergency shutdown when starting the
engine, turbine, or other type of prime mover, to protect against
runaway or overspeed with possible personal injury, loss of life, or
property damage.
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Manual 26482
Woodward