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5464-826 - Dual Solenoid Monitor Module is available in stock which ships the same day.
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TECHNICAL SPECIFICATIONS:
Part Number: 5464-826
Manufacturer: Woodward
Series: MicroNet / MicroNet Plus System Series
Product Type: Dual Solenoid Monitor Module
Module Form Factor: MicroNet VME Bus Card Slot
Application: Turbine Trip & Solenoid Status Monitoring
Number of Channels: 2 Independent Solenoid Monitoring Channels
Monitoring Signal Inputs: Solenoid Current & Voltage Sensing
Control Backplane: MicroNet VME Bus Interface
Diagnostic Capabilities: Open/Short Circuit Sensing, Current Verification & Trip Status
Isolation: Galvanic Isolation between Field and Control Logic
Operating Temperature: -40°C to +70°C
Storage Temperature: -40°C to +85°C
Humidity: 95% Non-Condensing
System Compatibility: Woodward MicroNet & MicroNet Plus Control Racks
Conformal Coating: Yes
Availability: In Stock
Repair Lead Time: 3–7 Days
Country of Origin: United States
Manual Reference: Woodward Manual 26166
The Woodward 5464-826 is a Dual Solenoid Monitor Module designed and manufactured by Woodward as part of the MicroNet and MicroNet Plus control system platforms. Designed to slide directly into standard MicroNet VME slots, the module provides real-time status telemetry and electrical health monitoring for up to two independent solenoid actuators used in critical steam and gas turbine trip circuits.
SOLENOID DRIVER INTERFACING & TRIP CIRCUIT INTEGRATION
The module operates as a dedicated monitoring interface between high-speed turbine trip systems and electro-hydraulic solenoid valves. By establishing direct signal conditioning across the solenoid power feed, the board tracks loop impedance and dynamically evaluates switching response during routine trip tests, partial stroke testing, and emergency shutdown events.
INDIVIDUAL CHANNEL ISOLATION & FAULT TOLERANCE
To protect adjacent control infrastructure from severe field surges, each monitoring channel on the 5464-826 features independent optical and galvanic isolation barriers. This redundant channel separation prevents single-coil electrical failures, ground faults, or inductive kickback transients from propagating across the MicroNet backplane or affecting secondary trip solenoids.
PREDICTIVE MAINTENANCE & COIL DEGRADATION TRACKING
Beyond basic threshold sensing, the module analyzes subtle fluctuations in solenoid energization curves and holding currents over time. By identifying gradual changes in coil resistance, thermal degradation, or mechanical sticking in the solenoid armature, maintenance technicians can replace failing components before unexpected plant trips or valve actuation failures.
WHY BUY FROM WOC
World of Controls maintains the industry's largest inventory of genuine OEM replacement components exclusively for GE Speedtronic control systems. To minimize critical plant downtime, we provide both UNUSED surplus and fully REBUILT circuit boards, processor cards, and I/O modules—each backed by comprehensive warranty protection. Every reconditioned Speedtronic component undergoes thorough diagnostic testing, circuit-level evaluation, and functional bench-testing by our experienced technical team before dispatch. In addition to direct parts supply, our facility offers complete diagnostic repair and unit exchange services with rapid turnaround times for your damaged GE Speedtronic hardware. Our dedicated team of automation specialists is available 24/7 to assist with technical selection, stock verification, and emergency component sourcing for your Speedtronic control panels. Contact us today via phone or email to request pricing, confirm live inventory, or discuss custom repair solutions for your GE Speedtronic infrastructure.
What is Woodward 5464-826?
Woodward 5464-826 is a Dual Solenoid Monitor Module used with MicroNet and MicroNet Plus control systems. It monitors the electrical condition and status of two independent solenoid circuits used in turbine trip and control applications. The module provides current and voltage monitoring to help identify abnormal solenoid circuit conditions.
How many solenoid channels can the module monitor?
The 5464-826 provides two independent solenoid monitoring channels. Each channel is designed to monitor a separate solenoid circuit and provide electrical status information to the control system. This allows two solenoid circuits to be monitored independently within the turbine control application.
What signals are monitored by the module?
The module monitors electrical signals associated with connected solenoid circuits, including current and voltage. These measurements can be used to verify expected solenoid operation and identify abnormal electrical conditions. Depending on the system configuration, monitoring information can assist with detecting open circuits, short circuits, or insufficient solenoid current.
Which control systems use the 5464-826?
The 5464-826 is designed for use with Woodward MicroNet and MicroNet Plus control systems. It is installed within the applicable MicroNet VME-based control rack and interfaces with the system backplane. Compatibility should be verified against the specific control rack and system configuration before replacement.
What can cause incorrect solenoid current or voltage readings?
Incorrect readings can result from a defective solenoid coil, loose or damaged wiring, unstable field power, faulty terminals, or problems within the monitoring circuit. Compare the measured electrical values with the expected values for the specific turbine control configuration. If the field circuit is confirmed to be healthy, the module may require further testing or repair.
