9905-869

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The Woodward ProTech 203 electronic two-out-of-three Overspeed Protection Systems. Features a 24Vdc Input, CPU and MPU Failure Indication, and Remote Reset.

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  • Part Number: 9905-869
  • SKU: 9905869WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-869

    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 5.00 (2)
  • Click a star to rate this product
    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 5.00 (2)
  • Click a star to rate this product
The Woodward ProTech 203 electronic two-out-of-three Overspeed Protection Systems. Features a 24Vdc Input, CPU and MPU Failure Indication, and Remote Reset.

AVAILABILITY:

CALL FOR AVAILABILITY

3 Year Warranty: Learn More
Sell Surplus: Have a 9905-869 to sell? Sell Now
Exchange Credit: Learn more about our exchange credit program
  • Part Number: 9905-869
  • SKU: 9905869WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-869 Technical Specifications

Dimensions W482.6mm x H310.4mm x D142.7mm
Display Operating Temperature –15 to +60 °C (+5 to +140 °F)
Features CPU Failure Indication
Input Voltage 24 Vdc = 18–32 Vdc, 7.25 W
Keypad/Display 3 LCDS | 2 Lines of 16 Characters
Manual 85191
Manufacturer Woodward
Model De-energize-to-Trip
Operating Temperature –25 to +60 °C (–13 to +140 °F)
Weight Approx 7Kg

Product Description

This overspeed protection system has a modular design. The 9905-869 system has three individual units, each with its own 24 Vdc power supply. Each of these three identical speed-sensing units is interfaced with a magnetic pickup (MPU) to monitor prime mover speed. All three units are in the same IP65-certified enclosure, which is locked with a key switch to prevent unauthorized changes and testing. The modular design of model 9905-869 permits the testing of individual units one at a time while the prime mover is online, as well as hot replacement.

 

9905-869 is part of the ProTech 203 Overspeed Protection System. This model is one of the de-energize-to-trip versions in the Woodward series. When an overspeed condition is detected, a trip relay is activated. The accuracy of this system is ensured through the use of a two-out-of-three voting configuration of the three speed-sensing units. The actual speed of any of the three units can be viewed on the LCD of each unit’s own operator interface. Each interface also has a keypad and LED functional status indicators.

 

Thanks to the hardware vote configuration, the 9905-869 will continue to operate even after one of the unit trips. Along with an overspeed condition detection, there are several possible reasons why one of the units may trip, including but not limited to the loss of an MPU signal, the unit was not reset before the turbine was restarted, or an interlock fault. More information on the trip relays and troubleshooting information can be found online in the ProTech 203 Overspeed Protection System Manual 85191 (version B)

Reviews For 9905-869
Internal Review

Installations of the 9905-869 with severe electromagnetic interference (EMI) may require shielded cable run in conduit, double-shielded wire, or other precautions. - AX Control Inc. Technicians

Repair Services For 9905-869

Type Lead Time Price Action
Repair Service 1-2 weeks $4960

Our highly skilled technicians can repair your 9905-869. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
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9905-869 Manuals, White Papers, Data Sheets, and Troubleshooting