Woodward 5464-211 Analog Output Module

Product Overview

The Woodward 5461-644 is an Analog Output Module from the Woodward DCS II architecture, providing highly accurate 4–20 mA current output signals for controlling external field devices. This module features multiple output channels and integrates an H-type circuit breaker for overcurrent protection, making it a robust solution for industrial process control systems. The 5461-644 is part of Woodward's modular and scalable DCS II platform, manufactured in the USA.

Key Technical Specifications

• Product Type: Analog Output Module (4–20 mA) with H-Circuit Breaker
• Series: Woodward DCS II / 5461 Series
• Output Signal: 4–20 mA current loop
• Output Channels: Multiple (simultaneous multi-device control)
• Voltage Range: 24 V DC (typical supply)
• Communication Interface: Modbus/RS-485
• Operating Temperature: -10°C to +60°C (some sources indicate -40°C to +85°C)
• Protection Rating: IP65, aluminum enclosure
• Dimensions: Approx. 120 mm × 80 mm × 40 mm
• Origin: USA
• Availability Status: Discontinued by Woodward — limited to existing stock

Key Features

• High Accuracy: Precise 4–20 mA output for critical process control
• H-Circuit Breaker: Built-in overcurrent protection — automatically cuts output during current anomalies
• Multi-Channel Output: Controls several external devices simultaneously
• Modular Design: Freely combinable with other Woodward 5461 series modules
• Rugged Construction: IP65 aluminum housing for dust and moisture protection
• Easy Installation: Standard DIN rail or panel mount with simplified wiring

Applications

• Industrial process control analog signal output
• Valve positioner control
• Variable frequency drive (VFD) speed reference
• Chart recorder and indicator drives
• DCS II distributed control system I/O expansion

Installation Guide

1. Mount on DIN rail or panel in control cabinet
2. Connect 24 VDC power supply
3. Wire 4–20 mA output signals to field devices
4. Connect Modbus/RS-485 communication to DCS network
5. Verify H-circuit breaker resets properly after test trip
6. Calibrate output channels per device requirements

FAQ

Q: What does the H-Circuit Breaker do?
A: It provides overcurrent protection by automatically cutting the output circuit when abnormal current is detected, protecting downstream devices.

Q: Is this module still in production?
A: No, Woodward has discontinued the 5461-644. Availability is limited to existing stock. Contact your supplier for current inventory.

Q: How many output channels does it have?
A: Multiple output channels — exact count varies by revision. Verify with your specific unit.

Model Selection Tips

• 5461-644 = 4–20 mA analog output + H-circuit breaker
• For discrete input, consider 5461-642
• For discrete output, consider 5461-643
• For RTD input, consider 5461-654
• Since discontinued, verify stock availability before ordering