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Jessica PerrySep 7, 2025
What to do if my Woodward 9907 is faulty?
- MMark YorkSep 7, 2025
If you suspect a faulty control, consider replacing it.
What to do if my Woodward 9907 is faulty?
If you suspect a faulty control, consider replacing it.
What to do if the common + source is connected to the wrong terminal on my Woodward 9907 Control Unit?
If the common + source for contacts connected to terminals 14, 17, 18, and 19 is taken from terminal 16 instead of terminal 0, connect the + source for these terminals to terminal 0, not 16.
What does it mean if the Start Fuel Limit is inactive in my Woodward Control Unit?
On power up, the Fuel Limit can be bypassed if the MPU signal clears in less than 1 second.
What does it mean if the 2301A control does not cut back the actuator voltage on my Woodward 9907?
If the control does not cut back the actuator voltage [T20 (+) and T21 (–)] until the speed setting is completely counterclockwise, the 2301A control may be faulty, or may have the wrong speed range.
What to do if the LOW IDLE SPEED is set fully clockwise on my Woodward Control Unit?
Turn LOW IDLE SPEED setting counterclockwise with terminal 19 open. Be careful not to overtorque the pot.
General| Category | Control Unit |
|---|---|
| Manufacturer | Woodward |
| Operating Temperature Range | -40 to 70 °C |
| Output Type | Analog |
| Series | 9907 Series |
| Input Voltage Range | 24 VDC nominal (18-32 VDC) |
Safety precautions to prevent static damage to electronic components.
Covers unpacking, location, power requirements, and basic electrical connections.
Guides initial settings before prime mover start-up.
Covers adjustments for stable operation and dynamic response.
Explains how to adjust load gain and droop settings.
Provides a systematic approach to diagnose and resolve control issues.
