Woodward 9905-976 Module | TMR Speed Sensing Safety Panel

Availability: 99 left in stock

Woodward 9905-976 ProTech-GII TMR Overspeed Protection Panel The 9905-976 (Model: 9905-976) is a high-integrity digital overspeed protection system designed for the most...

SKU: 9905-976

Manufacturer: Woodward
Product No.: 9905-976
Product Type: Overspeed Protection Panel
Product Origin: USA
Payment:T/T, Western Union
Weight: 2000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Woodward 9905-976 ProTech-GII TMR Overspeed Protection Panel

The 9905-976 (Model: 9905-976) is a high-integrity digital overspeed protection system designed for the most critical turbine safety applications. Part of the Woodward ProTech-GII family, this panel provides independent, high-speed monitoring for gas, steam, and hydro turbines, as well as large industrial compressors. The 9905-976 (Part Number: 9905-976) utilizes a Triple Modular Redundant (TMR) architecture, featuring three independent CPUs and three separate magnetic pickup (MPU) inputs to ensure mission-critical reliability.

Configured for De-Energize-to-Trip (DET) operation, the 9905-976 (ProTech-GII: 9905-976) ensures fail-safe performance; the trip relays are normally energized during operation and will de-energize to trigger a shutdown in the event of an overspeed condition, hardware fault, or loss of control power. With a response time of less than 12 ms, it offers authoritative protection against catastrophic mechanical failure, making it a standard choice for power generation and oil & gas facilities requiring SIL-rated safety performance.

Detailed Technical Specifications

The 9905-976 (9905-976) delivers precision speed measurement and industrial-grade fault tolerance.

Parameter	Specification
Manufacturer	Woodward
Model Number	9905-976
Product Series	ProTech-GII Overspeed Protection
Trip Logic	De-Energize-to-Trip (DET) / Fail-Safe
Voting Architecture	Triple Modular Redundant (TMR) 2oo3
Input Voltage	24 VDC (Redundant supply supported)
Sensing Inputs	3 Independent Magnetic Pickups (MPUs)
Response Time	< 12 ms (Typical)
Relay Outputs	Redundant Form-A / Form-C Relays
Communication	Modbus RTU (RS-485) / Modbus TCP (Ethernet)
Enclosure	Rugged Industrial Metal Housing
Operating Temp	–20 °C to +60 °C
Weight	2kg
Dimensions	482 mm × 310 mm × 143 mm

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