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Manual 26659
ProAct P-Series FL Position Controller
Woodward
25
Chapter 3.
Description of Operation
Overview
The ProAct P-Series FL is an electric actuator with internal position feedback.
The ProAct P-Series FL actuator accepts a PWM, (4 to 20) mA analog,
(0 to 5) V (dc) analog, (0 to 200) mA analog, or a CAN position command input
signal. Typically the actuator output shaft connects to the fuel gas valve, intake
throttle, or fuel oil pump rack shaft of a reciprocating engine. The output shaft
maximum rotation is 75 degrees and is configurable for CW or CCW rotation. A
manual mode is provided to facilitate setting up the actuator system.
Actuator adjustments are made using the Service Tool. The Service Tool is a
Windows based software tool provided at no charge to configure, monitor, adjust,
and troubleshoot a ProAct P-Series FL actuator. It runs on a personal computer and
communicates with the ProAct P-Series FL actuator through a serial connection. The
Service Tool is disconnected from the actuator when not in service.
The actuator has a switching power supply with excellent spike, ripple, and EMI
(electromagnetic interference) rejection. Discrete inputs are capable of rejecting
EMI and variable resistance in switch or relay contacts. Analog inputs are
differential type with extra filtering for common-mode noise rejection.
Optionally, a Run Enable input can be used to activate or de-activate the
ProAct P-Series FL output. It can also be used to reset shutdown fault conditions.
The actuator has one discrete output, which changes state based on
configurable alarms and status conditions. A (4 to 20) mA or (0 to 5) V (dc)
analog output is available, providing a position feedback indication. Optionally it
can be configured to represent the position setpoint.
The actuator provides one RS-232 serial interface and one CAN communication
connection. The RS-232 port is the service port used by the ProAct P-Series FL
Service Tool to configure and tune the ProAct P-Series FL actuator. The CAN
communication port is used to connect to an engine control system. The protocol
provided is J1939. Two discrete inputs (CAN ID High and Low) are provided to
support four CAN identifications within a single device configuration using
harness coding.
System Operation
The ProAct P-Series FL actuator is ready for operation immediately (< 1 second)
when the power supply is connected. Power may be connected to the actuator at
the same time the engine starter motor is engaged.
On an engine shutdown command, the independent engine shutdown solenoid or
solenoid valve in the fuel supply should be de-activated and the power supply
disconnected from the speed control. This shutdown signal should be sent
directly from the engine control panel and should be independent and separate
from the ProAct P-Series FL actuator.
The ProAct P-Series FL
actuator should not be used as the primary
means of shutting down the engine.
Содержание ProAct P Series FL
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