8280-422 Digital Speed Controller

The 723PLUS Model 8280-422 has multiple control functions. This includes various fuel limiting functions such as launch fuel limiting, torque fuel limiting, and manifold or external fuel limiting. Soft loading/unloading, clutch control and permission logic, flexible coupling torsional filtering and single throttle operation are just a few examples of the features included in this control. Woodward 723PLUS Manual 02881 has a complete list of features and detailed information on each feature. Manual 02881 also contains complete information on the 8280-422 I/O, some of which are configurable. Some inputs are dual-speed sensing inputs that can be used with an MPU 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 to support a handheld programmer, a 0–200 mA actuator output, and more.