
Manual 26247
2301D/2301D-EC Digital Control
Woodward
39
08 SPEED TRIM DEC TIME (SEC)
dflt = 30.00 (1.00, 300.00)
This is the time for the speed reference to ramp from the raise speed limit to the
lower speed limit when using the Lower Speed switch input.
09 ACT OUT AT RATED NO LOAD
dflt = 20.00 (0.00, 100.00)
The setting where droop is calculated from. Adjust this setting at the same
reading of the actuator % when engine is running at rated rpm but with no load.
10 ACT OUT RATED FULL LOAD
dflt = 80.00 (0.00, 100.00)
The setting for the actuator when the engine is at full load.
11 ACT POS DROOP (%)
dflt = 0.00 (0.00, 100.00)
The actuator dependant droop percentage setting, for proper droop control set
the above parameters 09 and 10 first. If load (kW) droop is used (GEN PT and
GEN CT are connected) set this parameter to 0.
12 IDLE DROOP BREAKPOINT
dflt = 20.00 (0.50, 100.00)
Normally set equal or slightly above the control output obtained when the engine
is unloaded and at low idle. When the output of the control drops below this
setting or goes to minimum fuel during rapid engine deceleration, Idle droop
(described below) raises the speed reference. This brings the engine back under
control sooner and reduces speed undershoot. Speed undershoot may occur
because the time required for the control to return to the new fuel setting is
dependent on control dynamics and linkage adjustment.
13 IDLE DROOP (%)
dflt = 0.00 (0.00, 100.00)
Based on the control output current when it drops below the idle droop
breakpoint. The percentage is based on the idle speed set point. To enable idle
droop, the parameter 11 Enable Idle Droop at Configure Menu A**Engine &
Speed Control** should be set TRUE.
14 DELAY TIME IDLE TO RATED
dflt = 5.00 (0.00, 600.00)
The delay time for the automatic idle to rated switch. The engine will run for this
time at idle speed before it ramps to rated speed. In configure menu A**Engine &
Speed Control** parameter 17 Enable Auto Idle/Rated must be set TRUE.
H**Dynamics #1**
Dynamic adjustments are settings that affect the stability and transient
performance of the engine. Two sets of dynamics are provided. To disable the
second set of dynamics go to I**DYNAMICS 2** and set the first prompt (Enable
Dynamics 2 w/CB) to FALSE. The dynamics being used for control are selected
by the CB Aux contact input. The control uses the 1st dynamics when the CB
Aux contact input is open, and it uses the 2nd dynamics when the contact is
closed.
01 PROP GAIN 1
dflt = 2.00 (0.01, 100.00)
Determines how fast the control responds to an error in engine speed from the
speed-reference setting. The gain is set to provide stable control of the engine at
light or unloaded conditions.
02 RESET 1
dflt = 2.00 (0.01, 100.00)
Compensates for the lag time of the engine. It adjusts the time required for the
control to return the speed to zero error after a disturbance. Reset is adjusted to
prevent slow hunting and to minimize speed overshoot after a load disturbance.
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 ...