Manual 04121
ProAct I/II
Woodward
53
Problem Cause
Remedy
Prime mover will not
start. Actuator not
moving to start fuel
position. (cont.)
Speed sensor signal not
clearing failed speed signal
circuit.
Check wiring for proper connection. Check shields
for proper installation.
Speed sensor not spaced properly. Check for at
least 1.0 Vac at terminals 10 and 11 during
cranking. If less than 1.0 Vac, magnetic pickup may
be spaced too far from gear. Make sure there are
no metal chips on end of pickup.
Check the number of teeth seen by the MPU per
engine revolution against the number entered in
step 2 of Menu 6.
If no voltage is present, magnetic pickup may be
open-circuited or shorted. Make resistance check
with the leads disconnected from control. Should be
100 to 300
.
Check Error Menu 0 for faults.
The Failed Speed Signal must be enabled for
routine operation of the engine to ensure
shutdown and prevent possible life threatening
overspeed should the MPU signal be lost at
some future time.
Check Monitor Menu for Speed When Cranking.
Be prepared to make an emergency shutdown
when starting the engine, turbine, or other type
of prime mover, to protect against runaway or
overspeed with possible personal injury, loss of
life, or property damage.
Faulty ProAct control.
Replace control.
Summary of Contents for ProAct I
Page 10: ...ProAct I II Manual 04121 8 Woodward Figure 1 3 Example of ProAct II Actuator...
Page 11: ...Manual 04121 ProAct I II Woodward 9 Figure 1 4 Outline Drawing of ProAct I or II Actuator...
Page 12: ...ProAct I II Manual 04121 10 Woodward Figure 1 5 ProAct Wiring Diagram...
Page 13: ...Manual 04121 ProAct I II Woodward 11 Figure 1 6 Outline Drawing of ProAct Control Box...
Page 39: ...Manual 04121 ProAct I II Woodward 37 Figure 4 2 Typical Transient Response Curves...
