Woodward 721 - Fig 5. Speed Filter; Fig 6. T Orque Fuel Limit Curve

Manual 26004 721DSC for Marine Propulsion Application
Woodward
3
3


  0



  ‑20
 dB



  ‑40


   0  Filter Cutoff   20Hz

Figure 5. Speed Filter



 Actuator output(%)TorqueLmtP4,%
  100TorqueLmtP4,rpm
      MaxLmt,%
TorqueLmtP3,%
  75TorqueLmtP3,rpm
TorqueLmtP2,%
  50TorqueLmtP2,rpm
TorqueLmtP1,%
TorqueLmtP1,rpm



   300    400   460 520
EngineSpeed(RPM)

Figure 6. Torque Fuel Limit Curve