Woodward The ProAct control system is a combination of a 32-bit microprocessor control

Description

The ProAct control system is a combination of a 32-bit microprocessor control and a

limited-angle rotational torque motor (actuator). The system features user-friendly

menus to provide extreme flexibility in the development of special control schemes

for different types of engines.

Two different ProAct actuators are available. The ProAct I actuator provides 1.4 Nm

(1.0 lb-ft) of torque in steady state and 3.55 J (2.62 ft-lbs) of work over 75° of travel.

The ProAct II provides 2.7 Nm (2.0 lb-ft) of torque in steady state and 7.11 J (5.24

ft-lbs) of work over the 75° of rotation.

The control has two complete sets of dynamic adjustments to aid when operating

with such conditions as two different fuels, or in parallel/stand-alone electrical

generation. A four-slope gain schedule is available in each set of dynamics. This

permits programming for extremely responsive yet extremely stable operation of

carbureted engines. Adjustment of the ProAct control is done through the use of a

PC service tool, communicating to the ProAct via CAN. The software-based service

tool allows access to all of the tunable settings. The service tool PC CAN adapter is

a separate device and will normally be unplugged and removed during governor

system operation. This provides security against unauthorized tampering with

system adjustments. The control may be tuned or monitored during setup with the

PC service tool, if desired.

Specifications

Actuator

Output Shaft: 0.500-36 inch serration on output shaft. Opposite side used for feedback device. (Other configurations

available upon request.)

Operating Temperature Range: –40 to +100 °C (–40 to +212 °F) operating environment. Contact Woodward for

extreme temperature installation procedures.

Feedback: Brushless Hall Effect feedback device directly connected to actuator shaft.

Installation: May be mounted on 2.250 inch (57.15 mm) diameter male pilot concentric to the terminal shaft using

four bolts through the actuator or with four 0.312-18 inch bolts into the base (M8-6H metric optional). The actuator

may be mounted in any attitude.

May be connected directly to butterfly shaft, or may be linked to rack or valve.

Weight: The ProAct I and ProAct II actuators each weigh 6.9 kg (15.25 lbs).

Construction: All external surfaces are resistant to water and salt water corrosion. Actuator is waterproof at normal

water hose pressure and meets IP54 rating. Do not high-pressure wash.

Vibration and Shock Tested: Tested to US MIL-STD-810C.

MIN Fuel Return Spring: The actuator is equipped with a light spring return toward min fuel to prevent drift in case

of position signal interruption. Normal operating conditions do not require spring return, as the actuator is powered in

both the increase and decrease directions.

Direction of Rotation: All models are capable of either clockwise or counterclockwise rotation to increase fuel.