I. Product Overview

The American Woodward 5437 series fully digital engine control module integrates closed-loop speed control, I/O acquisition, actuator drive, unit protection, and bus communication. It is compatible with diesel/gasoline engines and small-sized steam turbines. It is panel-mounted and has an aluminum shell protection model. It is used for single-unit speed regulation and multi-unit parallel grid-connected load distribution.

Key Technical Parameters

Table

Parameter Item Specification Parameters

Power Supply DC18～32VDC wide voltage (suitable for battery start-stop voltage ｄｒｏｐ)

Speed Input 2 magnetic-electric speed sensors, frequency 4～20000Hz, input voltage 1～30VAC

Analog Input AI 6 programmable: 4-20mA/0～5VDC, oil pressure, water temperature, exhaust temperature acquisition

Programmable DIO 10 re-usable digital channels (DI dry contact / DO transistor / relay output configurable)

Actuator Drive Output 4 ±150mA servo drive, 2 0～10V valve position drive, direct connection to fuel actuator

Control Accuracy Steady-state speed control ±0.25% of the set value, and parallel load distribution error ≤3% FS

Communication Interface CAN J1939, Modbus-RTU (RS485) dual bus, optional Ethernet

Protection Grade IP66 aluminum die-cast enclosure (NEMA4X), dustproof, waterproof, oil-resistant

Operating Temperature -40℃～+85℃ industrial wide temperature range

Anti-Vibration 5g (10～2000Hz), shipboard / mining-grade vibration standards

Form Size 166×128×56mm, total machine net weight approximately 1.2kg

Safety Level SIL2 safety certification, meeting unit interlock shutdown specifications

Product Performance

Multi-mode Control Switching: Constant speed (grid-connected power generation), variable speed (mechanical drive), pressure closed-loop three control logic, software one-click configuration switching;

Adaptive PID Algorithm: Automatically optimize parameters for load sudden changes, no need for on-site repeated setting, small transient speed fluctuation;

Full-range Fault Self-Diagnosis: Sensor break, power supply under-voltage, channel short circuit, actuator failure real-time alarm, hierarchical interlock shutdown (warning / deceleration / emergency trip);

Multi-unit Parallel Grid-Connected: Supports CAN bus parallel connection of the same model controller, automatic load distribution, synchronous frequency adjustment, suitable for multi-unit power station networking;

Durable in Harsh Environments: PCB three-proof coating, resistant to salt fog, oil stains, electromagnetic interference, can operate continuously in open engine room, offshore platform;

Parameter Power Loss Storage: Built-in non-volatile storage, power loss parameters not lost, automatic recovery of running configuration upon power-on.

Application Domains

Land-based power generation units: Industrial self-contained power stations, data centers / hospitals' backup diesel / gas power generation units, off-grid island power station speed regulation and grid connection;

Oil and gas industry equipment: Oilfield skid-mounted gas engines, natural gas pipeline compressors, wellhead power engines control;

Ship power systems: Ship auxiliary engine power generation units, inland / sea vessel emergency unit engine room speed regulation security control;

Industrial driving equipment: Gas engine-driven water pumps, fans, small residual heat steam turbine closed-loop speed control;

Mining mobile equipment: Underground diesel power units, mobile emergency power station main control.

Main Models of the 5437 Series

Table

Model Product Specifications Core Application

5437-672 Economic basic speed regulation ECM Unit with single power output, small power diesel generator set, backup unit

5437-682 Enhanced communication controller With Ethernet, supports remote SCADA monitoring networking

5437-687 High-end full I/O model (this model) Primary model for multi-unit parallel, suitable for gas engines / steam turbines 5437-691 High-power Execution Drive Model High-stroke Hydraulic Actuator, Compatible with Heavy-duty Gas Turbine