Product Overview
The Woodward 9905‑969 Linknet 6‑Channel Analog Input Module is a robust signal acquisition device designed to expand analog sensing capability within Linknet‑based engine and generator control systems. Built for demanding industrial environments, this module collects multiple analog signals — such as temperature, pressure, speed feedback, and voltage — and feeds them into higher‑level control logic for monitoring, regulation, and protection.
Engineers rely on the 9905‑969 because of its precise signal conditioning, high reliability, and broad compatibility with Woodward controllers and automation platforms. Its compact design and rugged industrial housing make it a dependable choice for power generation, marine propulsion, engine automation, and heavy machinery applications where accurate analog data is critical for system performance and safety.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Woodward |
| Model | 9905‑969 |
| Product Type | Linknet Analog Input Module |
| Channels | 6 Analog Inputs |
| Input Type | Voltage / current configurable |
| Input Range | 0–10 V, 4–20 mA (software selectable) |
| Resolution | 12‑bit or better |
| Accuracy | ±0.5 % typical |
| Isolation | Channel isolation to reduce noise |
| Communication | Linknet digital bus interface |
| Supply Voltage | 12 / 24 V DC |
| Operating Voltage Range | 8 – 36 V DC |
| Operating Temperature | −20 °C to +70 °C |
| Storage Temperature | −40 °C to +85 °C |
| Mounting | DIN‑rail or panel mount |
| Dimensions | 150 × 110 × 50 mm |
| Weight | Approx. 0.46 kg |
| Enclosure | Industrial‑grade rugged housing |
Application Scenarios
The 9905‑969 6‑Channel Analog Input Module is suited for systems where multiple analog signals must be monitored and processed.
Engine Automation Systems
Provides real‑time monitoring of temperatures, pressures, and fuel system parameters to optimize engine performance.
Generator Control and Protection
Collects analog feedback for voltage, current, and system health monitoring to support protection logic.
Industrial Machine Control
Used in heavy machinery systems to monitor vibration, oil levels, and other analog parameters critical to system health.
Marine and Offshore Platforms
Captures vital analog signals to feed into vessel propulsion and auxiliary system controllers.
Key Advantages
Multi‑Channel Acquisition
Six independent analog inputs enable broad signal collection from numerous sensors without external multiplexing.
Flexible Input Options
Supports both voltage and current inputs (e.g., 0–10 V and 4–20 mA), making it versatile for diverse sensor types.
Linknet Integration
Seamless integration into Woodward Linknet communication networks simplifies system architecture and reduces wiring complexity.
Industrial‑Grade Reliability
Designed to withstand vibration, temperature swings, and electrical noise common in industrial environments.
Noise‑Resilient Design
Channel isolation minimizes crosstalk and electrical interference, ensuring accurate signal readings.
Technical FAQs
1. What is the main purpose of the 9905‑969 module?
It collects and conditions up to six analog signals for engine or generator control systems.
2. What types of analog inputs are supported?
Voltage (0–10 V) and current (4–20 mA) inputs are supported, configurable via software.
3. What communication interface does it use?
A Linknet digital bus interface connects the module to controllers and higher‑level systems.
4. What is the typical accuracy?
The module provides analog signal accuracy of approximately ±0.5 %.
5. What supply voltage does it require?
It operates on 12 V or 24 V DC within a range of 8–36 V DC.
6. Can it operate in harsh environments?
Yes, it is designed for industrial conditions with vibration and temperature tolerance.
7. How is the module mounted?
Supports DIN‑rail or panel mounting for flexible installation.
8. Does it provide isolation between channels?
Yes, channel isolation reduces electrical noise and crosstalk.
9. What applications is it best suited for?
Engine automation, generator control, machine monitoring, and marine power systems.
10. Is it compatible with Woodward controllers?
Yes, it integrates with Woodward Linknet‑enabled controllers and networks.
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