Core Functions

1. Dual control modes: isochronous mode for single‑unit constant‑speed operation; droop mode for multi‑unit parallel load sharing.

2. High‑precision PID closed‑loop control with critical speed avoidance, valve stroke limit, startup ramp control and load rejection protection.

3. Independent overspeed monitoring, real‑time self‑diagnosis, fault logging and multi‑channel relay alarm outputs.

4. 4‑20 mA analog remote setpoint input for integration with upper‑level DCS/PLC systems.

5. Local panel parameter configuration and online tuning via dedicated Woodward software.

Electrical Specifications

• Power Supply: 24 VDC (wide‑range input: 18–40 VDC)

• Speed Input: Magnetic Pickup (MPU) sensor signal

• Actuator Output: PWM drive signal for hydraulic / electric actuators

• I/O: Programmable 4‑20 mA analog I/O, multi‑channel digital contact I/O

• Communication: RS‑232 / RS‑485, Modbus‑RTU protocol

• Safety Certification: Class 1 Div 2 hazardous area certified, industrial‑grade anti‑interference

Environmental & Mechanical Features

• Operating Temperature: −40 °C ~ +85 °C

• Mounting: Panel‑mount installation

• Enclosure: Rugged metal housing, dust‑proof and corrosion‑resistant

Typical Applications

• Speed‑load control for engine and turbine generator sets

• Power plant, petrochemical and oil‑gas compressor control systems

• Marine auxiliary power generation prime mover control

• Industrial prime mover governing and safety protection systems

WOODWARD 9906‑619（723PLUS 系列）

Product Overview

Core Functions

1. Dual control modes: isochronous mode for single‑unit constant‑speed operation; droop mode for multi‑unit parallel genset load sharing.

2. High‑precision PID closed‑loop regulation, supporting critical speed avoidance, valve stroke limitation, startup ramp control and load rejection protection.

3. Compatible with magnetic pickup (MPU) and proximity switch speed sensors; supports overspeed monitoring, real‑time self‑diagnosis and fault logging.

4. Programmable 4‑20 mA analog I/O, discrete I/O; RS‑485 Modbus‑RTU communication for remote monitoring and system integration.

5. Seamlessly matches Woodward DSLC digital synchronizer for genset parallel control.

Electrical Specifications

• Power Supply: 18–40 VDC (nominal 24/32 VDC), max power consumption 40W

• Speed Input: MPU (400Hz–15kHz), proximity switch (30Hz–15kHz)

• I/O Configuration: 8 discrete inputs, 4 analog inputs, 3 discrete outputs, 3 analog outputs

• Communication: RS‑485, Modbus‑RTU protocol

• Certification: CE, UL, CSA certified, hazardous location compliant

Environmental & Mechanical Features

• Operating Temperature: ‑40 °C ~ +70 °C

• Mounting: Panel‑mount installation

• Enclosure: Sheet metal chassis, IP20 protection, dust‑proof and corrosion‑resistant

• Dimensions: 412.75×292.1×60.32mm (16.25×11.5×2.375 inch)

Typical Applications

• Speed‑load control for engine & turbine generator sets

• Petrochemical, oil‑gas compressor prime mover control

• Marine auxiliary power generation system

• Industrial prime mover governing and overspeed protection systems