Woodward ProAct™ Analog &Digital Plus Electric Actuators with Integral Driver Description

Description

The actuators are designed to be base- or flange-mounted (Model IV is base

mounted only) in an on-engine environment and can therefore withstand high levels

of vibration and temperature extremes. They all have a 0.625-36 serrated tooth

terminal shaft, and an optional rotation scale and indicator are available for visible

travel detection. The actuators accept analog or PWM position command signals. In

addition, the Digital Plus driver accepts CAN position command signals and can be

configured for redundant command signals. It monitors all available internal and

external signals, and annunciates any detected faults through a discrete output. An

analog output provides actual position indication, and a discrete input is available to

remotely shut down the actuator.

Additional features of the Digital Plus driver include on-line and off-line diagnostics,

current limiting based on driver electronics temperature, CAN communications, and

service port communications. The Digital Plus driver is field programmable, allowing

a single design to be used in many different applications. It must be configured and

calibrated to the specific engine with a personal computer (PC) and a Woodward

Watch Window Service Tool that communicates serially to the driver via RS-232

using Woodward’s DDE ServLink protocol. Watch Window Standard can be ordered

from Woodward on a CD-ROM (part number 1796-065), or it can be downloaded

from the Woodward website (www.woodward.com). Data files for subsequent

applications of the same engine model can be downloaded off-engine. The ProAct

Analog actuator/driver can be configured without a service tool.

Refer to manual 26112 for more detailed information on the ProAct Digital Plus

actuator, and to manual 26147 for more information on the ProAct Analog.

Regulatory Compliance

European Compliance for CE Mark:

 EMC Directive:Declared to 89/336/EEC COUNCIL DIRECTIVE of 03 May 1989 on the approximation of the

laws of the Member States relating to electromagnetic compatibility.

Other European Compliance:

 Machinery Directive: Compliance as a component with 98/37/EC COUNCIL DIRECTIVE of 23 July 1998 on the

approximation of the laws of the Member States relating to machinery.