WOODWARD 5437-860 Product Detailed Description

Product Model: WOODWARD 5437-860

Brand: WOODWARD (Woodward)

Product Type: 2301A Series Digital Speed Controller / Current Pressure Converter (I/P)

Generation Time: 2026-05-18 10:36:16

I. Product Overview

WOODWARD 5437-860 is a 2301A series digital speed controller based on a microprocessor, designed specifically for industrial engines, steam turbines, and power generation units. It integrates the function of **electrical / hydraulic signal conversion (I/P converter)**, which can accurately convert 4-20mA control electrical signals into hydraulic output signals, used to drive actuators and achieve high-precision closed-loop control of the prime mover's speed and load. It is widely used in scenarios such as speed regulation and load control of diesel/gas engines, steam turbines, and gas turbines. 

II. Core Functional Characteristics

Dual-mode Control: Supports two modes - no-speed variation (constant speed) and speed variation with load distribution (load allocation), suitable for single-machine operation or multi-machine grid connection scenarios.

Multifunctional Signal Input: Compatible with 4-20mA or 1-5VDC analog signals, capable of receiving remote control instructions.

Integrated I/P Conversion: Built-in current-pressure converter, directly outputs hydraulic signals to drive actuators, without the need for an external conversion module.

Comprehensive Protection Mechanism: Built-in overcurrent, overvoltage, overspeed, and underspeed protection to ensure safe operation of the equipment.

High Stability: Industrial-grade wide-temperature design, strong anti-electromagnetic interference capability, suitable for harsh environments such as power plants and petrochemical industries.

Parameter Programmability: Supports setting parameters such as speed, gain, and alarm thresholds through the panel or software.

Liaison Control: Can be coordinated with Woodward load distributors, generator controllers, etc., to achieve complex system control.

III. Technical Specifications

1. Electrical Parameters

Control Type: Digital microprocessor closed-loop speed regulation

Input Signal: 4-20mA / 1-5VDC remote speed / load setting

Output Signal: Hydraulic signal (drives electro-hydraulic actuator)

Power Supply Voltage: 24 VDC (18~32 V)

Power Consumption: ≤ 15W

Isolation Voltage: 1500 VDC

Accuracy: ±0.1% speed control accuracy

2. Physical and Environmental

Size: 133.35 × 82.55 × 57.15 mm

Weight: Approximately 0.68 kg

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -40°C ~ +85°C

Humidity: 5%~95% RH (no condensation)

Installation: Standard DIN rail or panel installation

Protection: PCB three-proof coating

3. Certification and Status

Certification: CE, UL, CSA

Product Status:停产 (spare parts supply only)

Alternative Model： 2301E (8273-1011) series

IV. Typical Application Scenarios

Diesel / Gasoline Generator Sets： Single-machine constant speed control， parallel operation load distribution

Steam Turbines / Gas Turbines： 505/NetCon control system with speed regulation execution unit

Engine-driven pumps / compressors： Precise speed regulation and overload protection

Isolated Grid / Island Power Station： Automatic switching between main and backup machines and frequency stability control

Ship Power System： Speed regulation of main propulsion engines and generator sets

V. Model Association and Alternatives

Same series controllers

5437-860： 2301A integrated I/P converter speed controller

9907-014： 2301A basic speed controller

9907-018： 2301A enhanced speed controller

Alternative Solution： 8273-1011 (2301E) new-generation digital controller

VI. Quality and Service

Origin： USA (WOODWARD original factory)

Warranty： 12 months

Service： Provide control scheme design， parameter configuration， on-site commissioning， and spare parts supply