Woodward 9905-969 Linknet Analog Input Module

Woodward 9905-969 Linknet Analog Input Module

Product Introduction

The Woodward 9905-969 brings flexible distributed I/O capabilities to your NetCon control system. You can use this analog input module for non-turbine applications such as sequencing and monitoring. Although it is slower than NetCon I/O modules, it offers a cost-effective solution. This module reads six independent 4-20mA channels with high accuracy. Its rugged design supports extreme temperatures and humid environments.

Key Technical Specifications

The 9905-969 delivers 1% accuracy at 25°C. It operates on an 18 to 32 Vdc power supply input, with a nominal input of +24 Vdc at 1 A. The network-to-I/O channel isolation withstands 277 Vac. Additionally, the power supply input to network also handles 277 Vac. For safety, the power supply input to I/O channel isolates up to 500V.

This module features a 2 line x 24 character display and a 30 multi-function keypad. Thus, local configuration and monitoring become straightforward. The temperature range spans from –40 to +55°C, ensuring operation in harsh industrial settings.

Network Architecture and Integration

A single NetCon controller module powers up to four independent network trunks. Each trunk supports up to 60 I/O modules. Therefore, one NetCon controller connects to as many as 240 LINKnet modules. Each Woodward 9905-969 becomes a node on a trunk via a single twisted pair wire.

The NetCon module's four channels can each run in a distinct rate group. The MOE coder program defines the rate group for every channel. All nodes on a network run at the same speed. Two rotary switches on each LINKnet module configure the network address. You must match the module number (1 to 60) with the address specified in the MOE coder.

Mechanical and Environmental Ratings

This module weighs 9.11 lbs and measures 14W x 11H x 4D inches. It meets humidity standards of 95% for 48 hours at both 20°C and 55°C. The enclosure uses a plastic Phoenix field termination package for DIN rail mounting. Consequently, installation inside a control cabinet or near the turbine is simple. Ensure the location meets temperature and vibration requirements.

Installation Guidelines

First, mount the 9905-969 on a standard DIN rail using the Phoenix housing. Next, set the two rotary switches to define the correct network address (1 to 60). Verify this address matches the MOE coder configuration. Then, connect the twisted pair wire from the NetCon controller module to the LINKnet module. Finally, apply +24 Vdc power at 1A and check the display for proper startup.

Use shielded cables for the 4-20mA input channels to reduce noise. For instance, keep I/O wiring separate from power cables. Additionally, ensure the ambient temperature stays within –40 to +55°C during operation.

Why Choose This Woodward Module

The Woodward 9905-969 excels in distributed monitoring tasks. Specifically, it handles analog signals from sensors, transmitters, and field devices. Its six channels reduce the number of modules needed. Moreover, the wide power supply range accepts 18 to 32 Vdc, adding flexibility. The built-in keypad and display simplify troubleshooting without external tools.

For non-critical control loops or sequencing, this module provides a lower-cost alternative. In comparison to high-speed NetCon I/O, it remains reliable for slower analog inputs. Furthermore, its origin from the United States ensures quality manufacturing.

Packaging List

• Woodward 9905-969 Linknet 6-Channel Analog Input Module (1 unit)

• Plastic Phoenix field termination package (pre-installed)

• DIN rail mounting clips

• 30-key multi-function keypad (integrated)

• 2-line x 24-character display (integrated)

• Quick start guide

*Note: No certificates or warranty documents are included.

Shipping

We ship the 9905-969 worldwide via FedEx, UPS, or DHL. All items are packed in anti-static and shock-resistant materials. Tracking numbers are provided within 24 hours of dispatch.

Frequently Asked Questions (FAQ)

1. What control systems work with the Woodward 9905-969?
This module works exclusively with Woodward NetCon control systems. It connects as a LINKnet node via twisted pair wires to a NetCon controller module.

2. Can I use the 9905-969 for turbine control applications?
No, Woodward recommends this module for non-turbine tasks like sequencing and monitoring. Turbine control requires faster NetCon I/O modules instead.

3. How do I set the network address on the module?
Use the two rotary switches on each LINKnet module. Then set a number from 1 to 60. Finally, ensure this matches the MOE coder program's address for that node.

4. What is the maximum number of 9905-969 modules on one network?
A single NetCon controller supports up to 60 LINKnet modules per trunk. With four trunks, you can connect up to 240 modules total.

5. Does the module require special software for configuration?
Yes, you need the MOE coder program to define rate groups and network addresses. This software runs on the NetCon controller module.