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3 year warranty

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Woodward 505 Digital Governor for Steam Turbines with Single or Split-Range Actuators. Part 9907-163 features 18-32 VDC Power and is a microprocessor-based controller.



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  • Part Number: 9907-163
  • SKU: 9907163WO
  • Manufacturer: Woodward
  • Series: 505 Digital Governor Turbine Control

9907-163 Technical Specifications

Dimensions W14in. x H11in. x D4in.
Display Type 24 character LED
Enclosure Type NEMA Type 4X
Features Emergency Stop Button
Input Voltage 24VDC
Inputs 6 Programmable Current Inputs, 16 Discrete Contact Inputs
Keypad/Display 30 Keys
Operating Temperature Passes Lloyd’s type ENV3 Dry Heat test
Slot Type RS232C/RS422 serial port
Software Version OpView™ and 505View
Storage Temperature For longest life, store near room temperature and limit the thermal cycle range.
Weight 9lb 11oz

Product Description

This device belongs to a series developed by the oldest and leading manufacturing company in America, Woodward Inc. These units are designated as the 505/505E series of digital control units, built to operate a choice of either one or both of the split stage actuators in steam turbines in order to drive the inlet steam valves.

This is a legacy AC 505, DC 505 component.  It is rated for Class 1 Div 2 locations. 

The 9907-163 model is a governor unit, able to process all of the turbine operational parameters. These models are outfitted with an internal microprocessor module, which enables them to be able to control turbines, as well as other similar devices, such as a turbogenerator or expander module.

The 9907-163 is outfitted with a series of printed circuit boards that allow the unit to function and process commands. These boards are protected by the frame of the unit, however, there is an option for an additional layer of protection for this unit. This consists of the NEMA 4X graded protective frame. When attached, it is still able to be securely and safely mounted within a control panel system. However, the acceptable ambient temperature range decreases slightly, from a high intensity of 65 degrees C to 55.

In order to properly configure the unit and the turbine’s specifications, the operator must input these changes via the integrated control panel. This panel displays two lines of text, at 24 characters each.

Reviews For 9907-163

Internal Review

Removable terminal blocks allow for easy wiring and installation. The 505 Series of controls can communicate directly with factory Distributed Control Systems through Modbus communication ports. - AX Control Technician

Repair Services For 9907-163

Type Lead Time Price Action
Repair Service 1-2 weeks $6445

Our highly skilled technicians can repair your 9907-163. 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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