Product Description: Woodward 5461-769 Channel Actuator Driver

Product Model: 5461-769

Brand: Woodward

Product Type: Multi-channel Servo Actuator Driver

I. Product Overview

The Woodward 5461-769 is a high-performance signal conversion and power amplification module designed to connect control systems with various industrial actuators. It receives control instructions from controllers (such as 505, 2301A series) and amplifies low-power signals to drive electro-hydraulic servo valves, proportional valves, or DC motors, enabling precise position and load control of prime movers such as engines and steam turbines.

Core Function: Signal amplification, servo valve drive, actuator interface

Compatible Series: Woodward 505, 2301A, MicroNet, NetCon Control Systems

Product Form: Industrial-grade module, standard cabinet installation 

II. Core Technical Parameters

1. Electrical Specifications

Power Supply: 24 VDC (18–32 VDC)

Control Input:

Analog: 4–20 mA Position Command Signal

Digital: DeviceNet Field Bus Command

Feedback Signal: Position Sensor (LVDT/RVDT)

Drive Output:

Output Type: Servo Valve Drive Current / PWM Power Output

Output Channels: 4 Independent Control Channels

Drive Capacity: Maximum ±200 mA / Channel

Response Time: < 1 ms

Communication Interface: DeviceNet, RS-485

Electrical Isolation: Full Isolation for Input / Output / Power Supply

Safety Certification: Class I, Div 2 Explosion-proof Certification

2. Mechanical and Environmental

Operating Temperature: -40°C ～ +85°C (Industrial-grade Wide Temperature)

Protection Grade: IP65

Installation Method: Standard 19-inch Rack / Rail Installation

Vibration / Shock Resistance: Compliant with MIL-STD-810F

Weight: Approximately 1.2 kg

3. Control Performance

Control Modes:

Position Closed-loop Control: Based on LVDT/RVDT Feedback

Current Closed-loop Control: Direct Drive of Servo Valve

Speed / Load Following: Receives 4-20mA Command

Control Precision: ≤ ±0.1% F.S.

Linearity: ≤ ±0.2%

Protection Functions:

Overcurrent, Short Circuit, Overheat Protection

Sensor Fault Diagnosis

Power Reverse Connection, Under Voltage Protection

III. Main Functional Characteristics

Four-channel Independent Drive

Single module with 4 independent control channels, capable of simultaneously driving 4 actuators.

Supports various loads such as electro-hydraulic servo valves, proportional valves, DC servo motors, etc.

Complete Electrical Isolation between Channels, No Interference.

High Precision Signal Processing

Receives 4-20mA or DeviceNet Commands to achieve High Precision Position / Load Control.

Built-in LVDT/RVDT Signal Conditioning Circuit, Directly Connected to Position Feedback.

16-bit AD/DA Conversion, Control Precision Up to 0.1%.

Highly Reliable Industrial Design

-40°C ～ +85°C Wide Temperature, IP65 Protection, Full Isolation Anti-interference.

Hardware-level Fault Protection, Real-time Self-Diagnosis and Alarm Output.

Parameter Power Failure Retention, Power-on No-Disruption Recovery.

Flexible System Integration

Standard DeviceNet and RS-485 Interfaces, Seamless Integration into DCS/PLC Systems.

Compatible with Woodward's Full Series of Controllers and Actuators.

Supports Hot Swap, Convenient Maintenance, No Impact on System Operation.

IV. Typical Application Scenarios

Steam Turbine Control System: Drive Speed Control Steam Valve, Extraction Valve Servo Mechanism

Engine Control: Drive Fuel Actuator, Air Valve Actuator

Industrial Compressor / Pump: Drive Inlet Guide Vane, Speed Control Valve

Power Plant Side-Flow Control: Drive Condenser Deaerator Actuator

Metallurgy / Rolling Steel Equipment: Precise Positioning Control of Servo Hydraulic Cylinder

V. Product Advantages

High Density Integration: 4 Channels Integrated, Significantly Saves Installation Space

High Precision Drive: 0.1% Control Precision, Meeting Harsh Operating Conditions

High Reliability: Wide Temperature, High Protection, Full Isolation, Long Life Design

Strong Compatibility: Compatible with Servo Valves, Proportional Valves, Motors, etc.

Easy Maintenance: Hot Swap, Self-Diagnosis, Remote Monitoring

VI. Model Code Interpretation

5461: Woodward Industrial Control Module Serial Number

769: Hardware Configuration Code (4-channel Actuator Driver, DeviceNet + 4-20mA Input, LVDT Feedback, 24VDC, Wide Temperature, IP65, Explosion-proof)

VII. Standard Accessories

Connection Cables: Servo Valve Control Cable, Feedback Signal Cable

Installation accessories: Standard guide rails, fixed brackets

Software tools: Woodward ToolKit configuration and debugging software