9905-995 | Woodward Energize-to-Trip Unit

Description 

 The 9905-995, part of the Woodward ProTech series, functions as an energize-to-trip unit designed to activate a trip relay upon detecting overspeed conditions through a two-out-of-three hardware vote system. In the event of detection by a single speed-sensing unit, only that unit will trip while the rest of the system remains operational. This model operates with voter relays in a de-energized state during normal operations. 

Installation of the 9905-995 device necessitates a well-ventilated location to ensure proper cooling and maintain an operational temperature range of –25 to +60 °C. Sensitivity to vibration and electromagnetic interference mandates placement away from high-current or high-voltage devices. Detailed installation requirements are outlined in Woodward ProTech manual 85196. 

Each of the three speed-sensing units employs magnetic pickups (MPUs) to monitor prime mover speed, featuring individual 24 Vdc power supplies and operator interfaces equipped with an LCD, keypad, LED indicators, and a potentiometer. This interface facilitates programming and troubleshooting tasks. 

Technical Specifications 

Information About 9905-995

The 9905-995 Energize-to-Trip Unit, a product of Woodward ProTech, activates a trip relay upon detecting overspeed conditions through a two-out-of-three hardware vote. In case a single speed-sensing unit identifies the condition, only that unit will trip while the remainder of the system remains operational. As a member of the energized-to-trip models within the ProTech overspeed protection series, during standard operations, voter relays remain in a de-energized state. 

For optimal performance, the 9905-995 overspeed protection device necessitates installation in a location ensuring adequate ventilation for cooling and maintaining an operating temperature range of –25 to +60 °C. Due to its susceptibility to vibration and electromagnetic interference, it should be situated away from high-current or high-voltage devices. Detailed location requirements can be found in Woodward ProTech manual 85196. 

Manufacturer information

Woodward is a leading manufacturer of control systems and components for the aerospace and industrial sectors. With a history spanning over 150 years, Woodward specializes in providing innovative solutions for engine and energy control, serving customers worldwide.

IQElectro 2 Year Warranty

IQElectro offers a 2-Year Warranty on all our products. This complimentary two-year warranty ensures that every purchase from IQElectro is a secure investment in the future of your company.
Warranty Terms and Conditions

IQElectro is not an authorized distributor.

IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses. Some hardware products may contain software and firmware and may not be legally operated without first obtaining an appropriate license from the manufacturer. IQElectro makes no representation as to whether a product will or will not have software or firmware and, if it does, whether the software or firmware is the revision level that you need for your application. IQElectro also makes no representations as to your ability or right to download or otherwise obtain software or firmware for the product from the Original Manufacturer, its distributors, or any other source. IQElectro also makes no representations as to your right to install any such software or firmware on the product. IQElectro will not obtain or supply software or firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing software or firmware. Customer acknowledges and agrees that IQElectro DOES NOT provide any software, firmware, operating system, or right-to-use licenses with the products it sells. Customers understand and agree that proper software (firmware) licensing, maintenance, and upgrades are subject to the applicable manufacturer's Licensing Agreement or similar document. Disclaimer Policy.