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3 year warranty


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Designed by Woodward Inc as a Full Authority Speed Control in the 2301A series, the 9905-195 module can be used in isochronous mode. This model is a forward-acting unit for power supply voltages of 88-131 Vac or 90-150 Vdc.



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  • Part Number: 9905-195
  • SKU: 9905195WO
  • Manufacturer: Woodward
  • Series: 2301A Electronic Load Sharing and Speed Controls

9905-195 Technical Specifications

Part Number 9905-195
Series 2301A Load Sharing and Speed Control
Manufacturer Woodward
Location Closed Industrial Control Cabinet
Position Forward-Acting
Actuator Current 0-20 mA
Speed Set Input 4-20 mA
Engine Operation Steam/Gas Turbines
Power Supply Rating 90-150 Vdc
Supply Voltage 90-150 Vdc or 88-131 Vac
Vibration 4 Gs

Product Description

The 9905-195 control unit is a forward-acting model that operates on a supply voltage of 88-131 Vac or 90-150 Vdc; the speed set input on this unit is 4-20 mA, while the actuator current on this unit operates at 0-20 mA. The control is labeled as a full authority speed control in the 2301A Electronic Load Sharing and Speed Control series used for controlling mechanical loads for torque converter applications or split shaft gas turbines. As a full authority speed control, the 9905-195 unit can provide control in isochronous mode with a droop feature available when wired to an external potentiometer. The isochronous mode on the control helps control the speed at a constant on the prime mover. 

Two controls from the same series can be used to operate the tail shaft or split shaft governors and are typically installed on the control panel. To prevent excess heat buildup of the control, the 9905-195 panel should be installed in a temperate range of negative forty to positive eighty-five degrees Celsius with plenty of ventilation. 

With the 88-131 Vac or 90-150 Vdc, this indicates that the control panel is a high-voltage model. The high-voltage model must be installed away from other high-voltage, high-current devices that would allow interference through electromagnetics. As you are working with your high-voltage model, take caution that no wires are disconnected from the control while the prime mover is on; also note that the transformers attached to the control can develop extremely high voltages when open and the prime mover is being operated.

Frequently Asked Questions about 9905-195

What is the 9905-195? What does it do?

The 9905-195 is a full authority speed control manufactured by Woodward for the 2301A Lod Sharing and Speed Control. When used, it can control the speed or load of gas or diesel engines and steam and gas turbines according to the demand of a computer signal or processor. The signal demanded from the engine or turbine prime mover with this model is 4-20 mA. 

Are there differences between forward-acting and reverse-acting controls?

The main difference between the two models is that a forward-acting model, such as the 9905-195, will be used with a process sensor, while the reverse-acting modules are used with governors and actuators. Another difference is that a reverse-acting model will call for the actuator to use more fuel when the actuator current decreases. Models that have forward-acting, or direct-acting, control changes do not need to be made to the printed circuit board (PCB) while reverse-acting models require the PCB to be changed to operate in the correct mode. 

Reviews For 9905-195

Internal Review

The 9905-195 unit can be used with a load sensor produced by Woodward. When used with the load sensor, the isochronous setting on the speed control can also be used and is typically used to help with the load-sharing function. - AX Control Tech

Repair Services For 9905-195

Type Lead Time Price Action
Repair Service 1-2 weeks $1028

Our highly skilled technicians can repair your 9905-195. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
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