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  • 9905-972
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9905-972

9905-972 LinkNet Module | Woodward 6-Channel Analog Output

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  • Manufacturer: Woodward

  • Product No.: 9905-972

  • Product Type: Analog Output Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 450g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The Woodward LinkNet 9905-972 is a high-reliability 6-Channel Analog Output (4–20 mA) I/O Controller Node designed for distributed turbine and engine control architectures. As part of the Woodward LinkNet family, this module enables MicroNet and NetCon control systems to interface directly with field-actuated devices, control valves, positioners, and external indicators over standard 4–20 mA current loops. Operating as a networked I/O node, the 9905-972 offloads signal-processing tasks, reduces field wiring complexity, and ensures fast, deterministic command execution. Built with a rugged enclosure for demanding industrial environments, the module features an approximate shipping weight of 0.45 kg (1.0 lbs) and delivers precise dynamic response across operating temperatures from 0°C to 55°C.

Technical Specifications

Parameter Specification
Product Part Number 9905-972
Manufacturer / Product Family Woodward / LinkNet Series
Module Type 6-Channel Analog Output (4–20 mA) I/O Controller Node
Number of Output Channels 6 Channels (Galvanically Isolated)
Output Current Range 4–20 mA Standard Current Loop
Network Communication Protocol Woodward LinkNet High-Speed Network Bus
Primary Application Target Turbine Control, Actuator Positioning, Valve Drive Signal Control
Approximate Module Weight 0.45 kg (1.0 lbs)
Mounting Configuration DIN Rail or Panel Mount Terminal Base
Operating Temperature Range 0°C to +55°C (32°F to +131°F)

Key Hardware & Operational Features

  • Distributed I/O Architecture: Mounts near field actuators to convert high-speed LinkNet serial bus commands into 6 accurate 4–20 mA current signals, drastically reducing long multi-pair wiring runs.
  • High-Precision Actuator Control: Provides smooth, high-resolution current driving capabilities optimized for critical steam, gas, and hydro turbine control valves.
  • Fault-Tolerant Network Integration: Fully compatible with Woodward MicroNet control systems, featuring automated node health reporting and loop fault detection.
  • Industrial Standard Compliance: Engineered with optical isolation and heavy-duty noise immunity to withstand harsh electromagnetic interference (EMI) typical in power generation sites.

Installation & Field Wiring Guidelines

1. Unit Mounting: Snap the LinkNet node onto a standard DIN rail inside the control cabinet or local field junction box.

2. Network & Power Wiring: Connect the LinkNet network communication cable and power supply wires to the labeled terminal blocks on the module base.

3. Channel Wiring: Wire external field devices (actuators, valves, positioners) to the 6 analog output channels using shielded twisted-pair 4–20 mA loop cables.

Frequently Asked Questions (FAQs)

Q1: What is the main function of the Woodward 9905-972 node?
A1: It acts as a distributed I/O controller node converting LinkNet network commands into 6 isolated 4–20 mA analog outputs.

Q2: What controllers are compatible with the LinkNet 9905-972?
A2: It interfaces directly with Woodward MicroNet and NetCon control platforms over the LinkNet communications network.

Q3: What field devices can be driven by this module?
A3: It is designed to drive 4–20 mA industrial actuators, electro-hydraulic valve positioners, variable frequency drive references, and remote meters.

🏷️ Tags: Analog Output Module Woodward

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