Woodward 9905-969 Linknet Analog Input | 6 Ch 4-20mA

Description

Product Overview

• Woodward 9905-969 is a Linknet 6-Channel Analog Input Module.
• It reads 4-20mA signals from field devices. Perfect for non-turbine tasks like sequencing and monitoring.
• This module works with the NetCon control system. It gives you low-cost distributed I/O.
• Each module has 6 analog channels. Easy to install on a DIN rail.
• The module comes in a plastic Phoenix terminal housing. Durable and compact.

Technical Specifications

• Brand & Model: Woodward 9905-969
• Dimensions: 14W x 11H x 4D inches
• Weight: 9.11 lbs
• Display: 2 lines x 24 characters
• Keypad: 30 multi-function keys
• Accuracy: 1% at 25°C
• Power supply input: 18 to 32 Vdc
• Input voltage (nominal): +24 Vdc at 1 A
• Temperature range: –40°C to +55°C (operating)
• Humidity tolerance: 95% at 20°C and 55°C for 48 hours
• Isolation ratings:
  • Network to I/O channel: 277 Vac
  • Power supply input to network: 277 Vac
  • Power supply input to I/O channel: 500 V
• Country of origin: United States
• Availability: In Stock

Key Performance Data

• Input type: 4-20 mA analog (6 channels per module)
• Resolution: High resolution for precise process monitoring
• Linearity: Excellent linear response ensures accurate readings
• Noise immunity: Robust isolation (500V between power and I/O)
• Electromagnetic compatibility: Meets industrial standards for harsh environments

Network Architecture & Compatibility

• Each NetCon controller supports up to 240 LINKnet modules on four trunks.
• Each trunk holds up to 60 I/O modules. Uses simple twisted pair wires.
• Set the network address with two rotary switches (1 to 60). Match the MOE coder setting.
• Compatible with other LINKnet I/O types: thermocouple, RTD, discrete, relay output.
• Also works alongside Modicon Quantum systems via gateway integration.

Installation Guide

• Mount on DIN rail inside a control cabinet. Use the Phoenix terminal housing.
• Connect +24 Vdc power supply (18-32V range). Draws 1A max.
• Wire 4-20mA field signals to the six analog channels.
• Set the rotary switches for unique node address (1-60).
• Connect twisted pair wires to the NetCon controller trunk.
• Keep cables away from high-voltage lines for noise reduction.

Debug & Maintenance Convenience

• 2-line display shows real-time channel data and status.
• 30-key keypad allows on-site configuration without a PC.
• LED indicators help troubleshoot power and communication faults.
• Hot-swappable design? No – power down before replacement.
• Use MOE coder software for advanced diagnostics and rate group settings.

Typical Applications

• Gas turbine sequencing and monitoring (non-turbine control tasks).
• Remote analog signal collection in power plants.
• Industrial process monitoring – pressure, flow, temperature via 4-20mA sensors.
• Distributed I/O for NetCon based automation systems.

Diagnostic Capability

• Channel-level open wire detection for 4-20mA loops.
• Power supply fault monitoring.
• Communication status per trunk via NetCon controller.
• Rotary switch position verification through software.

Certifications & Compliance

• Designed to meet industrial control standards (CE marked as per Woodward).
• Humidity tested: 95% for 48 hours at 20°C and 55°C – non-condensing.
• Isolation rated for 500V between power and I/O, safe for industrial panels.
• RoHS compliant (standard for Woodward products).

Package Contents

• 1 x Woodward 9905-969 Linknet Analog Input Module
• Phoenix terminal housing (pre-assembled)
• Quick start guide (digital copy available)
• No cables included – order separately.

Warranty & Shipping

• 12 months warranty from invoice date. Covers manufacturing defects.
• Shipping partners: FedEx, UPS, DHL – worldwide express delivery.
• Tracking number provided within 24 hours. Insurance included.
• Stock ready for immediate dispatch.

Frequently Asked Questions (FAQ)

• Question: What is the maximum number of 9905-969 modules on one network?

  Answer: Up to 60 modules per trunk. Four trunks give you 240 total modules.

• Question: Does this module support HART protocol?

  Answer: No. It reads pure 4-20mA signals only. No HART overlay.

• Question: Can I use this module outdoors?

  Answer: Yes if placed in a weatherproof cabinet. Temperature range –40°C to +55°C.

• Question: How do I set the network address?

  Answer: Use two rotary switches. Set from 1 to 60. Match MOE coder configuration.

Experience-based Q&A (Field Notes)

• Question: My module shows no communication. What should I check first?

  Answer: Verify power supply (24Vdc) and rotary switch settings. Also check twisted pair polarity.

• Question: Can I replace a failed module without shutting down the whole system?

  Answer: No. Power off the trunk before removing or installing the module.

• Question: The 4-20mA reading is unstable. What causes this?

  Answer: Check for ground loops or loose wiring. Use shielded cables for analog signals.

Buying Guide & Selection Advice

• Choose Woodward 9905-969 if you need 6 analog inputs for NetCon systems.
• Need more channels? Consider discrete input modules (16 channels) or relay output (8 channels).
• For temperature sensing, pick thermocouple or RTD LINKnet modules instead.
• Verify your NetCon controller firmware version – older versions may have module limits.
• Order extra modules for future expansion. Each trunk supports 60 nodes.
• Contact us for bulk pricing or cross-reference to older Woodward part numbers.

Contact & Support

• Have questions? Talk to our engineers:
  +86 158 8020 0923 (WhatsApp)
• Email: support@plcdcshub.com – reply within 24 hours.
• Pre-sales consulting, datasheets, and RMA support available.

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