Manual 26004 721DSC for Marine Propulsion Application
Woodward
11
Fuel Limit
The 721DSC has two fuel limits, Start Fuel Limit and Maximum Fuel Limits.
Start Fuel Limit (%) is the maximum percent actuator output during engine start-up. This
should be set to a value which gives optimum start characteristics, while minimizing smoke
emissions due to overfueling.
Maximum Fuel Limit (%) is the maximum percent actuator output during normal engine
operation. This limit should normally be set just above the output at full load.
Monitoring Control
721DSC’s analog input signals, analog output signals, and present discrete inputs status can
be monitored using the hand-held programmer.
Three 4-20mA outputs are provided for monitoring Engine rpm, Speed Reference, and Rack
Position (Actuator output), which are configurable at 4 mA and 20 mA.
Three relay outputs are provided for Major Alarm indication, Minor Alarm indication, and
Load Transferring indication.
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