5464-1000 - 4-channel MicroNet Speed/Direction Input Module

TECHNICAL SPECIFICATIONS:

Part Number: 5464-1000
Manufacturer: Woodward
Series: MicroNet / MicroNet Plus
Module Type: Speed / Direction Input
Number of Channels: 4 Channels
Input Types: Magnetic Pickup (MPU) or Proximity Probe
Frequency Range: 0.5 Hz to 30 kHz
Input Resolution: 1 part in 16,000 (0.006%)
Isolation: 500 Vdc
Update Rate: 5 ms
Operating Temp: -30 °C to +65 °C
Availability: In Stock
Origin: United States

FUNCTIONAL DESCRIPTION:

The 5464-1000 is a 4-Channel Speed and Direction Input Module designed for the Woodward MicroNet and MicroNet Plus control platforms. This module is critical for the precise measurement of turbine shaft speed and, in specific configurations, shaft rotation direction. It acts as the primary feedback interface for speed governing loops, converting high-frequency pulses from speed sensors into digital data for the system's central processor.

HIGH-SPEED SIGNAL PROCESSING

Each of the 4 channels is capable of processing signals from standard passive Magnetic Pickups (MPUs) or active proximity probes. With a frequency range spanning from 0.5 Hz for slow-roll monitoring up to 30 kHz for high-speed turbine applications, the 5464-1000 provides the dynamic range required for all phases of engine operation. The module’s high resolution ensures that the smallest fluctuations in speed are detected, allowing the governor to maintain tight speed control and frequency stability.

ELECTRICAL ISOLATION AND NOISE IMMUNITY

To maintain reliability in environments with high electromagnetic interference, the 5464-1000 features 500 Vdc of galvanic isolation. This barrier protects the MicroNet backplane and CPU from electrical transients and potential ground loops that can occur in long field wiring runs to the turbine casing. The module is engineered with advanced filtering to reject common-mode noise, ensuring that only valid speed pulses are processed by the control logic.

INTEGRATED DIAGNOSTICS AND SAFETY

The 5464-1000 is fully integrated into the Woodward self-diagnostic framework. It continuously monitors the integrity of the input signals, including the detection of Open Circuits or Loss of Signal conditions. If a sensor fails or a wire is broken, the module immediately flags the fault to the CPU, enabling the system to switch to a redundant sensor or initiate a safety trip. This level of monitoring is essential for preventing overspeed conditions and protecting high-value industrial assets.

WHY BUY FROM WOC:

World of Controls supports your Woodward infrastructure by offering the 5464-1000 in both UNUSED and REBUILT conditions. Every speed module is subjected to rigorous testing on specialized simulation benches to verify frequency accuracy and signal sensitivity across all 4 channels. Backed by our global shipping network and 24/7 technical expertise, WOC is your trusted partner for maintaining peak control system performance.

FREQUENTLY ASKED QUESTIONS:

What is the Woodward 5464-1000?

The 5464-1000 is a 4-channel Speed/Direction input module for MicroNet systems, used to measure turbine shaft speed via MPU or proximity sensors.

Does this module support direction sensing?

Yes, when configured with appropriate sensors (such as quadrature probes), the module can determine the direction of shaft rotation in addition to the speed.

What happens if a speed sensor fails?

The 5464-1000 features integrated diagnostics that detect a loss of signal. It will immediately report the failure to the CPU, allowing the system's redundancy logic to maintain control or safely shut down.

Is it compatible with both Magnetic Pickups and Proximity Probes?

Yes, the module is versatile and can be configured to interface with standard passive MPUs or active (powered) proximity probes.