
2301D/2301D-EC Digital Control
Manual 26247
40
Woodward
03 ACTUATOR COMPENSATION 1
dflt = 12.00 (0.01, 100.00)
Compensates for the actuator and fuel system time constant. Increasing
Compensation increases actuator activity and transient performance.
04 WINDOW WIDTH 1 (RPM)
dflt = 60.00 (1.00, 200.00)
This is the magnitude (in rpm) of speed error at which the control automatically
switches to fast response. The control uses the absolute value of speed error to
make this switch. The absolute value is the difference between the speed
reference and the speed. A window width that is too narrow results in cycling that
always factors in the gain ratio (see Figure 3-2).
05 GAIN RATIO 1
dflt = 1.00 (1.00, 10.00)
The ratio of the gain setting at steady state to the gain setting during transient
conditions. The gain ratio operates in conjunction with the window width and gain
adjustments by multiplying the gain set point by the gain ratio when the speed
error is greater than the window width. This makes the control dynamics fast
enough to minimize engine-speed overshoot on start-up and to reduce the
magnitude of speed error when loads are changing. This allows a lower gain at
steady state for better stability and reduced steady-state actuator linkage
movement (see Figure 3-2).
Figure 3-2. Control Gain as a Function of Speed Error
Содержание 2301D
Страница 12: ...2301D 2301D EC Digital Control Manual 26247 4 Woodward Figure 1 1a 2301D Outline Drawing Ordinary Locations ...
Страница 13: ...Manual 26247 2301D 2301D EC Digital Control Woodward 5 Figure 1 1b 2301D Outline Drawing Hazardous Locations ...
Страница 14: ...2301D 2301D EC Digital Control Manual 26247 6 Woodward Figure 1 2a 2301D Plant Wiring Diagram sheet 1 ...
Страница 16: ...2301D 2301D EC Digital Control Manual 26247 8 Woodward Figure 1 2c 2301D Plant Wiring Diagram notes ...
Страница 51: ...Manual 26247 2301D 2301D EC Digital Control Woodward 43 Figure 3 4 Typical Transient Response Curves ...
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Страница 129: ...Declarations ...