Description
The WOODWARD 9905-969 LINKnet 6 Channel Analog Input Module is a distributed I/O module designed for Woodward NetCon and MicroNet control systems. It provides six analog input channels for receiving 4–20 mA field signals with 24 VDC loop power support, allowing connection to industrial transmitters and monitoring devices.
The module is commonly used in turbine control, generator automation, engine management, and industrial process monitoring applications. It collects analog signals such as pressure, temperature, level, and other process variables, then communicates the data through the LINKnet network to the main Woodward controller.
The 9905-969 uses the original LON-based LINKnet architecture and is installed as a distributed field I/O node. It is mainly maintained as a spare component for existing Woodward systems, while newer LINKnet HT modules are available for upgraded architectures.
9905-969
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | WOODWARD |
| Model | 9905-969 |
| Series | LINKnet Distributed I/O Series |
| Product Name | 6 Channel Analog Input Module |
| Part Number | 9905-969 |
| Input Type | 4–20 mA Analog Input with 24 V Loop Power |
| Product Status | Surplus / Spare Stock |
| Application | Turbine Control, Generator Control, Engine Automation, Industrial Monitoring |
| Number of Channels | 6 Analog Input Channels |
| Dimensions | Approx. 140 × 110 × 40 mm |
| Weight | Approx. 4 kg (including packaging) |
| Origin / Place of Origin | United States |
| Power Supply | 18–32 VDC |
| Loop Power Supply | 24 VDC Transmitter Loop Power |
| Communication Interface | LINKnet Network (LON Based) |
| Accuracy | Approx. 1% at 25°C |
| Operating Temperature | -40°C to +55°C |
| Mounting Type | DIN Rail Mounted I/O Module |
| Isolation | Network and I/O Electrical Isolation |
| Discontinued Status | Legacy Product / Spare Replacement Available |
❓ Common Questions & Answers
Q: What is the main function of WOODWARD 9905-969?
A: The 9905-969 converts six external 4–20 mA analog signals into digital data and sends the information through the LINKnet network to Woodward control systems.
Q: What devices can connect to this module?
A: It can connect to industrial transmitters including pressure sensors, temperature transmitters, fuel monitoring devices, and other process instruments using 4–20 mA signals.
Q: Does the 9905-969 provide transmitter power?
A: Yes. The module includes 24 VDC loop power capability for compatible 4–20 mA field transmitters.
Q: Which Woodward systems use the 9905-969?
A: It is mainly used with Woodward NetCon, MicroNet, and 723 control system architectures that support LINKnet distributed I/O modules.
Q: What are common causes of module failure?
A: Typical issues include incorrect 24 VDC supply, damaged field wiring, communication network faults, grounding problems, or aging electronic components.
Q: Can the 9905-969 replace 9905-968?
A: The two modules are similar 4–20 mA input modules, but the 9905-969 includes 24 V loop power. System configuration and transmitter requirements should be checked before replacement.
Q: Is WOODWARD 9905-969 still produced?
A: The original LON-based LINKnet modules have reached legacy status and are maintained mainly for existing installations. Newer CANopen-based LINKnet HT modules are used for modernization projects.
⭐ Recommended WOODWARD Models
- WOODWARD 9905-968 – LINKnet 6 Channel 4–20 mA Input Module
- WOODWARD 9905-970 – LINKnet 6 Channel RTD Input Module
- WOODWARD 9905-966 – LINKnet Thermocouple Input Module
- WOODWARD 9905-967 – LINKnet Thermocouple Input Module
- WOODWARD 9905-971 – LINKnet 16 Channel Discrete Input Module
- WOODWARD 9905-972 – LINKnet 6 Channel Analog Output Module
- WOODWARD 9905-973 – LINKnet Discrete Output Module
- WOODWARD 9905-760 – LINKnet Termination Resistor
- WOODWARD 8200-1202 – LINKnet HT 4–20 mA Module
- WOODWARD 8200-1203 – LINKnet HT 4–20 mA Loop Power Module
- WOODWARD 5466-031 – NetCon I/O Controller Module
- WOODWARD 5439-730 – NetCon Expansion Chassis Power Supply
- WOODWARD 5466-340 – NetCon Fiber Optic Receiver Module
- WOODWARD 9907-205 – Hand Held Programmer Module
- WOODWARD 723PLUS Digital Control – Engine and Turbine Control System
