
Manual 26247
2301D/2301D-EC Digital Control
Woodward
95
Symptom Cause
Solution
Prime mover overspeeds
or causes excessive
smoke only on starts.
Start Fuel Limit is inactive.
Power up 2301D before cranking engine.
2301D control.
If the control does not cut back the actuator
voltage [terminals 20(+) and 21(-)] when
engine speed is greater than speed
reference, the control may be programmed
for the wrong speed range. If the voltage is
cut back, look for a problem in the linkage
or actuator.
Prime mover overspeeds
after operating at rated
speed for some time.
Prime mover.
Check for proper operation of prime mover
fuel system. If actuator moves toward
minimum fuel during overspeed, problem is
in fuel system.
Magnetic pickup and 2301D
control.
Check the magnetic pickup output voltage
at speeds above idle—at least 1.0 Vrms. If
magnetic pickup should fail and the override
failed speed signal circuit is disabled, the
2301D control will call for maximum fuel.
2301D control.
Control the prime mover manually at rated
speed. If the Engine Speed reading in the
Display Menu does not match external
indicators, the control is not configured
properly. When the engine speed value is
greater than the speed reference value, the
output voltage should be zero. If speed
range is correct for the application, replace
the control.
Low speed is not
regulated by LOW IDLE
SPEED.
On carbureted prime movers,
the minimum fuel stop rpm
setting will vary with prime
mover temperature. An
improper cold setting may give
interference with the LOW IDLE
SPEED setting when the prime
mover is hot.
The LOW IDLE SPEED setting may be
below the minimum fuel position of the
actuator or prime mover fuel stop. In this
case, the output voltage to the actuator will
be zero.
The engine will be maintained at the
minimum fuel position by the actuator or the
prime mover minimum fuel stop. The
conditions above indicate that the prime
mover minimum fuel position should be
decreased by linkage adjustment (diesel
engine) or low idle set screw (gas engine),
or the LOW IDLE SPEED setting should be
raised. If this action does not correct the
problem, the 2301D control may be faulty.
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 ...
Страница 127: ...Manual 26247 2301D 2301D EC Digital Control Woodward 119 ...
Страница 129: ...Declarations ...