5441-661 - 8-channel MicroNet Analog Input Module

TECHNICAL SPECIFICATIONS:

Part Number: 5441-661
Manufacturer: Woodward
Series: MicroNet
Module Type: Analog Input (AI)
Number of Channels: 8 Channels
Input Signal Range: 4–20 mA (Standard)
Resolution: 16-Bit
Accuracy: 0.1% of full scale
Isolation: 500 Vdc
Power Consumption: 5.0 Watts (Typical)
Operating Temp: -30 °C to +65 °C
Storage Temperature: -40 °C to +85 °C
Availability: In Stock
Origin: United States

FUNCTIONAL DESCRIPTION:

The 5441-661 is a precision 8-Channel Analog Input Module designed and manufactured for the Woodward MicroNet control platform. It serves as a vital data acquisition bridge, converting 4-20 mA signals from field transmitters into high-resolution digital data. This module is essential for monitoring critical process variables such as pressure, flow, and level in high-performance turbine and engine control applications.

PRECISION SIGNAL CONDITIONING

Each of the 8 channels on the Analog Input Module is designed to provide high-resolution 16-bit conversion. This level of granularity allows the control system to detect minute changes in process conditions, ensuring that the governor can maintain tight control tolerances. The module's internal circuitry is calibrated for high linearity and minimal thermal drift, providing consistent feedback even in varying ambient temperatures.

ROBUST ELECTRICAL ISOLATION

To protect the integrity of the MicroNet backplane and the central CPU, the Analog Input Module features 500 Vdc of galvanic isolation. This barrier separates the field-side wiring from the internal logic, effectively suppressing electrical noise, transients, and ground loops that are common in industrial power plant environments. This isolation ensures that a fault in one field loop does not propagate through the rest of the control system.

ADVANCED FAULT DIAGNOSTICS

The 5441-661 is equipped with continuous self-diagnostic features that monitor the health of the input loops. It can automatically detect under-range (open circuit) and over-range (short circuit) conditions. If a signal deviates outside of the programmed safety limits, the module flags the specific channel and communicates the fault to the MicroNet CPU, allowing the control logic to switch to a redundant sensor or initiate a safe machine state.

WHY BUY FROM WOC:

World of Controls supports the long-term reliability of your Woodward infrastructure by providing the 5441-661 in both UNUSED and REBUILT conditions. Each module is subjected to rigorous validation on specialized test stands, verifying calibration accuracy and diagnostic performance across all 8 channels. We maintain a robust inventory of MicroNet I/O modules to ensure rapid deployment during critical maintenance or emergency outages. With global logistics and 24/7 technical assistance, WOC is your trusted partner for high-precision industrial control components.

FREQUENTLY ASKED QUESTIONS:

What is the Woodward 5441-661?

The 5441-661 is an 8-channel Analog Input Module designed for the MicroNet system. It interfaces with 4–20 mA field transmitters to provide the control system with digital data for process monitoring and governing.

How does the 16-bit resolution impact system performance?

The 16-bit resolution provides over 65,000 discrete steps of measurement. This high level of detail is necessary for sensitive control loops where small changes in variables like fuel pressure require immediate and precise adjustments by the governor.

How does the Analog Input Module handle electrical noise from the field?

The module utilizes a combination of 500 Vdc galvanic isolation and integrated hardware filtering. This design ensures that high-frequency interference and ground-loop noise picked up by long field cables are filtered out before they can affect the digital signal processed by the CPU.

Does the module require external power for the input loops?

While the module itself is powered by the MicroNet backplane, the 4–20 mA field loops typically require an external 24 VDC power source (loop power) to drive the transmitters. Operators should verify the wiring configuration to ensure the loop power is correctly applied.