ABB RFO800 Analog input module

The availability of a self-contained MPU will simplify the conversion of a PGcontrolled engine to an electronically controlled engine. A gear which has been specifically designed to operate the MPU means that the electronic control will receive sharp, clean speed signals. Low speed applications may require override of the control’s failsafe during startup.Drive speeds from 200 to 1000 rpm available with check valves for either clockwise or counterclockwise rotation. Speeds up to 1500 rpm maximum available with plugs for single direction only. Oil cooler may be required. Drive Power Requirement Drive will use 375 W (0.5 hp) typical maximum. Hydraulic Supply Self contained sump, 2.5 liter (2.6 quart) capacity. See Woodward manual 25071, Oils for Hydraulic Controls, for specific recommendations. In most cases, the same type and weight of oils used in the engine can be used in the actuator.

Optional Features 

Heat Exchanger (remote only) A heat exchanger helps maintain actuator temperature below 93 °C (200 °F). Actuator temperature depends on ambient temperature, actuator drive speed, operating internal pressure, etc. Remote heat exchangers are available upon request. Booster Servomotor A booster servomotor, mounted externally, uses start air to supply immediate oil pressure to the governor as an aid for quick starts. MPU Actuator can be fitted with one or two MPUs (magnetic pickups). The MPU option is not UL approved. Note: The addition of a magnetic pickup to an existing actuator involves proper removal and reinstallation of the actuator base and pump. Therefore, this operation must be handled by an authorized Woodward representative.

Rugged and Reliable 

The resolver is a highly accurate and highly dependable device for absolute position shaft encoding. Resolvers have a reliable track record of applications in aerospace, military, and industry, where they have been used for decades for position sensing. Some of the common applications are radar antenna position sensing, missile guidance systems, NC machine position feedback, automotive stamping presses, 2 piece can-manufacturing presses and packaging machines. The resolver is designed to operate reliable under extremely hostile environments, such as; continuous mechanical shock, vibration, extreme temperature and humidity changes, oil mist, coolants and solvents

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