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3 year warranty


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Model 8280-598 manufactured by the Woodward Governor Company, is to be incorporated into larger systems of prime movers. This unit is Lightweight and durable due to its sheet metal chassis. this allows the PCB to withstand temperatures up to 70 C/158 F.



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  • Part Number: 8280-598
  • SKU: 8280598WO
  • Manufacturer: Woodward
  • Series: 723 and 723PLUS Digital Control

8280-598 Technical Specifications

Weight 6lbs 8oz
Relay Output Features Shutdown, Alarm, Turbo Air Assist
Proximity Switch Speed 30–15 000 Hz (200–2100 rpm)
Ambient Operating Temperature -40 to +158 °F
Model 723PLUS with low-voltage power supply
Manual Woodward 26043
Inrush Current 7 A for 0.1 ms
Input Voltage 18–40 Vdc (24 or 32 Vdc nominal)
Dimensions (in) 16.25W x 11.5L x 2.375H
Ambient Storage Temperature -67 to +221 °F

Product Description

Part 8280-598 is a Woodward speed/performance control for reciprocating engines. In variable speed applications, the 723PLUS ‘598’ can control the engine ignition timing, speed, and air/fuel ratio. Engine and turbocharger speed can be monitored by magnetic pickup (MPU) or proximity switch, as the two-speed inputs are compatible with both. Woodward 723PLUS Digital Industrial Speed/ Performance Control ‘598’ is a low voltage control.


The 8280-598 is compatible with an optional, external Modbus master device, such as an HMI, as well as optional LinkNet modules, as is standard in the 723PLUS speed control system. Additional standard features include two proportional actuator outputs and two relay-driven alarm and shutdown indicators. For details on the full 723PLUS control system, see the Woodward 723PLUS Digital Speed Control for Reciprocating Engines— Performance Control ‘598’ Product Manual 26043.


723PLUS model 8280-598 is a printed circuit board in a sheet metal chassis. During normal operations, this control can handle a –40 to +70 °C (–40 to +158 °F) temperature range with humidity at 95% at +20 to +55 °C (+68 to +131 °F). This control should be mounted in a location that provides protection from vibration and electromagnetic interference. Manual 26043 has more information on mounting location requirements for this device.


Woodward speed/performance controller 8280-598 meets Lloyd’s Register of Shipping Specification EN 50081–2 and EN 50082–2 and is CSA Certified. For full compliance information, see Product Specification 03203.

Reviews For 8280-598

Internal Review

Low Voltage Model 8280-598 is suitable to support UL hazardous locations Class I div 2 Groups A/B/C/D. Please note that installation and operation should be performed by a certified or well-versed operator. - AX Control Technician

Repair Services For 8280-598

Type Lead Time Price Action
Repair Service 1-2 weeks $1810

Our highly skilled technicians can repair your 8280-598. 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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