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3 year warranty


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  • 4.33 (3)
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8280-422 from Series 723PLUS can be programmed and is configurable for off-the-shelf control and monitoring of industrial engines, power generation, and marine applications. Withstands temps up to 70 C/158 F.



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  • Part Number: 8280-422
  • SKU: 8280422WO
  • Manufacturer: Woodward
  • Series: 723 and 723PLUS Digital Control

8280-422 Technical Specifications

Operating Temperature -40 to +70 °C
Weight 3kg before packaging
Storage Temperature -55 to +105 °C
Standards European Union (EU) Compliant with EMC Directive 89/336/EEC (Low Voltage Model Only)
Power Consumption 40 Watts nom
Part Number 8280-422 - 723PLUS Digital Marine Control
Inrush Current Low Voltage Model: 7 A for 0.1 ms
Input Voltage Low Voltage Model: 18–40 Vdc (24 or 32 Vdc nominal)
Dimensions W41.28cm x L29.21cm x H6.04cm

Product Description

8280-422 is a digital speed control designed to be used with low-speed (less than 100 rpm) diesel engines. There is another version of this Woodward digital speed control, model 8280-423, which is designed for medium- and high-speed engines (over 100 rpm).

This 723PLUS Digital Marine Speed Control is intended for use in dual-engine marine applications where unit clutching and mechanical load sharing are required. The 8280-422 will regulate the speed and load of diesel engines in these applications.

723PLUS model 8280-422 has a variety of control features. This includes several fuel limiting features, such as start fuel limiting, torque fuel limiting, and manifold or external fuel limiting. Soft loading/unloading, clutch control and permissive logic, flexible coupling torsional filtering, and single-throttle operation are just a few more examples of the features included in this control. Woodward 723PLUS Manual 02881 has a complete list of features and details on each one.

Manual 02881 also has complete information on the 8280-422 I/Os, some of which are configurable. A few of the inputs are two-speed sensing inputs, which can be used for MPUs or proximity switches; eight discrete inputs; and two redundant communication ports. Outputs include three configurable 4–20 mA outputs, two configurable alarm relays, a serial port that supports a handheld programmer, and a 0–200 mA actuator output, among others.

Reviews For 8280-422

Internal Review

Unit 8280-422 is a durable controller suitable for hazardous environments with temperature up to 158 Degrees Fahrenheit. Installation and operation should be performed by a certified or well-versed operator. - AX Control Inc. Technician Team

Repair Services For 8280-422

Type Lead Time Price Action
Repair Service 1-2 weeks $1822

Our highly skilled technicians can repair your 8280-422. 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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