Woodward 8200-188 723PLUS Digital Speed Control

Woodward 8200-188 is a premier digital speed control module belonging to the high-performance 723PLUS series.

It is a cornerstone of Woodward’s power management solutions, specifically designed to regulate the speed and load of large-bore reciprocating engines (diesel, gas, or dual-fuel) and gas/steam turbines.

Introduction

The 8200-188 is a High Voltage (90–150 VDC or 88–132 VAC) version of the 723PLUS Digital Speed Control.

Unlike its low-voltage counterparts, this unit is engineered for facilities where high-voltage DC battery banks or standard AC mains are the primary power sources.

It provides sophisticated control logic for isochronous speed control, droop, and complex load-sharing applications in power generation and mechanical drive systems.

 Technical Parameter Table

 Unique Product Description

The Woodward 8200-188 is defined by its Dual Actuator Control Capability. This allows a single 723PLUS unit to manage two separate fuel banks on a large "V" engine or control both a fuel valve and a steam extraction valve on a turbine.

Its high-voltage power supply is internally isolated and exceptionally rugged, designed to ignore the significant "switching noise" common in industrial power grids and large-scale battery rooms.

 Product Advantages and Features

Versatile Power Supply: Operates on either AC or DC high-voltage inputs without manual switching.

Precise PID Tuning: Offers separate dynamics for starting, rated speed, and dual-fuel transitions.

Complex Load Sharing: Integrates seamlessly with Woodward DSLC™ units via a dedicated load-sharing lines for proportional load distribution.

Digital Diagnostics: Built-in "Watch Window" compatibility allows technicians to view real-time engine data and fault logs.

EMI/RFI Resistance: Encased in a heavy-duty aluminum chassis to prevent electromagnetic interference in high-power environments.

## Application Cases

Emergency Standby Power: Used in hospitals and data centers where high-voltage DC battery backups are standard.

Marine Power Management: Controlling main propulsion engines and auxiliary generators on large vessels.

Gas Compression: Governing engine speed for pipeline compressors in remote stations.

District Heating: Managing steam turbines in combined heat and power (CHP) plants.

 Installation and Maintenance

Mounting: Install in a location with adequate airflow, avoiding direct contact with high-heat sources like exhaust manifolds.

High-Voltage Safety: Ensure all power is disconnected before touching terminals. The 8200-188 handles lethal voltages (up to 150V).

Shielding: To prevent "speed signal hunting," ensure that the Magnetic Pickup (MPU) cable is shielded and grounded at the control end only.

Software Updates: Periodically check for Woodward "Custom Application" software updates to ensure the control logic matches modern engine efficiencies.

Other Models in the Same Series

Model Number    Specification / Difference

8200-186    Low Voltage (18–40 VDC) Version

8200-187    High Voltage with Specific Software (Marine)

8200-226    Custom Configured 723PLUS

9907-205    Compatible Handheld Programmer

Related Models

Woodward 2301A/D (Standard Speed Control)

Woodward 505 (Steam Turbine Digital Control)

ProAct™ & UG-Series Actuators (Standard output pairing)

DSLC-2 (Digital Synchronizer and Load Control)