WOODWARD 5437-687 Product Detailed Description

Product Model: WOODWARD 5437-687

Brand: WOODWARD (Woodward)

Product Type: NetCon / 5000 Series 24-Channel Digital Quantity Field Terminal Module (Digital Field Terminal Module, FTM)

Generation Time: 2026-05-18 10:30:55

I. Product Overview

WOODWARD 5437-687 is a pure digital signal interface module specifically designed for Woodward NetCon and 5000 control systems. As a digital signal hub between the controller and industrial field equipment, it provides 24 independent digital I/O channels for electrical connection, isolation, and protection. It is mainly used for equipment status monitoring, switch control, and logic interlock, and is widely applied in steam turbines, engines, power generation units, and industrial process control for safe and reliable digital signal transmission. 

II. Core Functional Characteristics

1. Digital Signal Processing

24-channel digital I/O: Independent digital input/output channels, configurable as DI or DO

Full Electrical Isolation: High-voltage isolation between channels and system side, effectively suppressing common-mode interference and ground potential difference

Signal Conditioning and Protection: Built-in filtering, overcurrent, overvoltage, reverse connection protection circuits

Safety: Output remains in preset safe state (normally open / normally closed) during power loss / communication failure

Status Indication: Channel-level LED status lights, real-time display of I/O on/off and fault status

Plug-and-Play: Automatically recognizes NetCon/5000 controller, automatically configures

2. Industrial-grade Reliability

Wide Temperature Operation: -40°C ~ +85°C, suitable for extreme industrial environments

Strong Anti-interference: Complies with EMC electromagnetic compatibility standards, shock / impact resistant design

Stable Wiring: Cage-type spring / screw terminals, secure wiring, resistant to vibration

PCB Three-Defense Coating: Moisture-proof, salt fog-proof, corrosion-proof, prolongs service life

III. Technical Specifications

1. Electrical Parameters

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

Digital Input (DI): 24 channels, dry contact / 24VDC active input

Digital Output (DO): 24 channels, transistor output (source-type / drain-type selectable)

Isolation Voltage: Channel-to-channel 500V DC, system side 1500V DC

Response Time: ≤ 5ms

Power Consumption: ≤ 4W

2. Physical and Environmental

Size: 158.75 x 88.9 x 63.5 mm

Weight: Approximately 0.52 kg

Operating Temperature: -40°C ~ +85°C

Storage Temperature: -55°C ~ +105°C

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

Installation: Standard DIN rail installation

Connection: 37-pin D-type connector + spring-type terminal

3. Certification and Status

Certification: CE, UL, CSA

Product Status: Discontinued, spare parts market supply

Alternative Model: 5501-371 (New Generation Digital I/O FTM of NetCon)

IV. Typical Application Scenarios

Equipment Status Monitoring: Pump, valve, motor operation / stop / fault status collection

Switch Control: Electromagnetic valve, relay, indicator light drive control

Logic Interlock: Industrial safety interlock, sequential control, emergency stop system

NetCon/5000 System Expansion: Pure digital I/O point number expansion

Power Plant / Petrochemical: Turbine, compressor, boiler auxiliary system control

V. Model Association and Alternatives

Series Comparison

5437-686: Mixed I/O Module (16AI + 24DI/DO)

5437-672: Mixed I/O Module (16AI/16DI/16DO)

5437-687: Pure Digital Module (24DI/DO)

Main Controller: NetCon Controller, 5000 Controller

Alternative Solution: 5501-371 New Digital Field Terminal Module

VI. Quality and Service

Origin: USA (WOODWARD Original Factory)

Warranty: 12 months Services: Technical support, system integration, fault diagnosis, spare parts supply