9905-984

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Woodward ProTech 203 Unit 9905-984 Digital Overspeed Trip Device that senses prime mover speed through three magnetic pickups (MPUs).

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  • Part Number: 9905-984
  • SKU: 9905984WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-984

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  • 5.00 (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
  • 5.00 (1)
  • Click a star to rate this product
Woodward ProTech 203 Unit 9905-984 Digital Overspeed Trip Device that senses prime mover speed through three magnetic pickups (MPUs).

AVAILABILITY:

CALL FOR AVAILABILITY

3 Year Warranty: Learn More
Sell Surplus: Have a 9905-984 to sell? Sell Now
Exchange Credit: Learn more about our exchange credit program
  • Part Number: 9905-984
  • SKU: 9905984WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-984 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 Key Lock
Humidity Standards US MIL-STD-810D, Method 507.2, Procedure II
Input Voltage 24 Vdc
Manufacturer Woodward
Model De-energize-to-Trip
NEMA Rating 4x
Operating Temperature –25 to +60 °C (–13 to +140 °F)
Weight 7.3Kg

Product Description

The front panel of parts 9905-984 has three operator interfaces, one for each of the three identical speed-sensing units. Each one has a two-line LCD, touchpad, and potentiometer. There are also separate 24Vdc power supplies for each unit A, B, and C.

 

These front panel operator interfaces are where parameters are set, speed and operations are monitored, and error codes are displayed. Each unit has separate LEDs to indicate conditions such as an MPU failure (or failure in its wiring), a CPU not functioning normally, and a tripped unit. Alarm outputs can also be set for some conditions.

 

Model 9905-984 is part of the ProTech 203 Overspeed Protection System series. This series is manufactured by Woodward. ProTech 203 overspeed protection device model 9905-894 samples speed every 5ms using magnetic pickups, one in each speed-sensing unit. From these speed samples, the units perform separate speed calculations which are then used in a hardware two-out-of-three vote to determine whether overspeed conditions are met. If an overspeed condition is detected, a trip relay is activated.

 

Additional features of ProTech 203 model 9905-984 include:

  • Hot replacement
  • Online testing
  • Remote reset
  • Key locked enclosure

 

The enclosure of model 9905-984 is NEMA 4X when the optional stainless steel hubs are used. For more information and product specifications for this ProTech 203 device, please see Woodward manual 85195.

Reviews For 9905-984
Internal Review

Keep plastic, vinyl, and Styrofoam materials away from the control, the modules, and the work area as much as possible. The heat and static buildup from the chassis and materials could cause irreparable damage. - AX Control Inc.

Repair Services For 9905-984

Type Lead Time Price Action
Repair Service 1-2 weeks $4360

Our highly skilled technicians can repair your 9905-984. 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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9905-984 Manuals, White Papers, Data Sheets, and Troubleshooting