9905-751

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ProTech 203 9905-751 from Woodward displays the actual speed from each speed probe, displays the highest speed signal, as well as online testing with a modular design. This series feature Hot Replacement modules

AVAILABILITY:

CALL FOR AVAILABILITY

Contact: 1-919-372-8413 (Intl.), 1-800-991-7026 (US), sales@axcontrol.com

3 Year Warranty: Learn More

Sell Surplus: Have a 9905-751 to sell? Sell Now

Exchange Credit: Learn more about our exchange credit program

9905-751

    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.00 (1)
  • 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
  • 4.00 (1)
  • Click a star to rate this product
ProTech 203 9905-751 from Woodward displays the actual speed from each speed probe, displays the highest speed signal, as well as online testing with a modular design. This series feature Hot Replacement modules

AVAILABILITY:

CALL FOR AVAILABILITY

Contact: 1-919-372-8413 (Intl.), 1-800-991-7026 (US), sales@axcontrol.com

3 Year Warranty: Learn More

Sell Surplus: Have a 9905-751 to sell? Sell Now

Exchange Credit: Learn more about our exchange credit program

9905-751 Technical Specifications

Dimensions W482.6 x H310.4 x D142.7 (with knobs and key)
Display Operating Temperature –15 to +60 °C (+5 to +140 °F)
Features MPU Fail Indication
Input Voltage 24 Vdc and 120 Vac/dc
Manual 85196
Manufacturer Woodward
Model De-energize-to-Trip
Operating Temperature –25 to +60 °C (–13 to +140 °F)
Standards Adequate ventilation for cooling
Trip-Point Frequency Range 250 Hz to 25 kHz
Weight Less than 17 lbs

Product Description

Manufactured by Woodward in the company’s ProTech 203 series of overspeed protection devices, 9905-751 is a de-energize-to-trip model. This device uses three speed-sensing units, each interfaced with a separate magnetic pickup (MPU), to monitor prime mover speed. These nearly identical units are configured for a hardware two-out-of-three vote. Prime mover speed is sampled every 5 ms, with a max system response time of 40 ms. Units A and B have 24Vdc input, while Unit C has 120 Vac/dc input.

 

The three speed-sensing units are in one, NEMA 4X certified enclosure, which is key locked. Programming of model 9905-751 is only accessible with key lock access. Tunable parameters and other programming specifications and instructions are in ProTech 203 Overspeed Protection System Manual 85196.

 

Each unit has its own front panel that includes:

  • Touchpad
  • Two-line by 16-character LCD display
  • Separate LED functional status indicator for a failed MPU/wiring, CPU operating outside of normal parameters, and a tripped unit

 

There are many conditions that might prompt one of the 9905-751 units to trip, such as the speed exceeding the trip setpoint, an MPU fail timeout, or no reset before re-starting the turbine. Troubleshooting details for these and other conditions can be found in the product manual.

Reviews For 9905-751
Internal Review

Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials. Wear cotton or cotton-blend materials as much as possible because these do not store static electric charges as much as synthetics. - AX Control Inc Technician

Repair Services For 9905-751

Type Lead Time Price Action
Repair Service 1-2 weeks $5004

Our highly skilled technicians can repair your 9905-751. 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
Learn More

9905-751 Manuals, White Papers, Data Sheets, and Troubleshooting