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Woodward Unit 9907-164 from 505 Digital microprocessor-based Controllers for Steam Turbines with Single or Split-Range Actuators.



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  • Part Number: 9907-164
  • SKU: 9907164WO
  • Manufacturer: Woodward
  • Series: 505 Digital Governor Turbine Control

9907-164 Technical Specifications

Dimensions 14W x 11H x 4D (Inches)
Display Type Two line x 24 characters
Enclosure Type IEC 60529, IP 56
Features Overspeed Test Buttons
Humidity Standards 20 and 55 °C at 95% for 48hrs
Input Voltage +24 Vdc at 1 A
Keypad/Display 30 Multi-function Keypad
Operating Temperature –4 to +140 F
Slot Type RS-232/RS-422 with Modbus Protocol
Software Version 505View or OpView™
Storage Temperature -40 to +185 F
Weight 9.11 lbs

Product Description

The device listed here is the 9907-164 model, a part of the 505 and 505E Microprocessor-based governor control units. These control modules were designed specifically to operate steam turbines, as well as turbogenerators and turboexpander modules. The 505/505E series was developed, produced, and manufactured originally by Woodward Inc. Woodward is the oldest industrial manufacturer in America, founded in 1870, and still, today remains one of the leading industrial companies in the market. These 505 and 505E models are available from us here at AX Control Inc. as a part of our inventory of used, yet reconditioned and repaired digital hardware.

The 9907-164 unit is designed to control the steam turbine by operating a single extraction and/or the admission for the turbine. It utilizes the turbine’s split-stage actuators, either one or both of them, to drive the inlet valves for steam.

This unit, like any of the 505 governor modules, is able to be configured in the field by the on-site operators. The menu-driven software is controlled and altered by the operator control panel integrated onto the front-facing side of the unit. The panel has a display of two lines of text, 24 characters per line.

The 9907-164 is outfitted with a series of discrete and analog inputs: 16 contact inputs (4 of them dedicated, 12 of them programmable), and then 6 programmable current inputs, at 4 to 20 mA. The standard features included into the 9907-164’s capabilities are the critical speed avoidance, valve limiters, the auto start sequence, and the first-out indicator for shutdowns.

Reviews For 9907-164

Internal Review

Be prepared to make an emergency shutdown when starting the engine, turbine, or other types of prime mover, to protect against runaway or overspeed with possible personal injury. - AX Control Techs

Repair Services For 9907-164

Type Lead Time Price Action
Repair Service 1-2 weeks $6945

Our highly skilled technicians can repair your 9907-164. 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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