9905-986

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De-energize-to-Trip Unit 9905-986 from Woodward ProTech 203 Overspeed Protection. 220Vac Input, Lockable Enclosure, and a Trip Alarm and LED.

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  • Part Number: 9905-986
  • SKU: 9905986WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-986

    Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures Varying star amount pictures
  • 4.33 (3)
  • 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
  • 4.33 (3)
  • Click a star to rate this product
De-energize-to-Trip Unit 9905-986 from Woodward ProTech 203 Overspeed Protection. 220Vac Input, Lockable Enclosure, and a Trip Alarm and LED.

AVAILABILITY:

CALL FOR AVAILABILITY

3 Year Warranty: Learn More
Sell Surplus: Have a 9905-986 to sell? Sell Now
Exchange Credit: Learn more about our exchange credit program
  • Part Number: 9905-986
  • SKU: 9905986WO
  • Manufacturer: Woodward
  • Series: ProTech 203 Overspeed Protection

9905-986 Technical Specifications

Dimensions W482.6mm x H310.4mm x D142.7mm
Features MPU Fail Indication
Input Voltage 220 Vac = 180–264 Vac, 7.25W
Keypad/Display Operating Temperature –15 to +60 °C
Manual 85195
Manufacturer Woodward
Model De-energize-to-Trip
Operating Temperature –25 to +60 °C
Vibration Standards US MIL-STD-810D, Method 516.3, Procedure I
Weight Approx 13-16 lbs

Product Description

With the ProTech 203 model 9905-986 overspeed protection device, a trip relay is activated when two speed-sensing units detect overspeed conditions. There are three units in this device that use individual speed calculations and a two-out-of-three voting configuration. If only one unit detects the overspeed condition, that unit trips but the overall system remains online.

 

This Woodward overspeed protection device monitors prime mover speed with magnetic pickups (MPUs). Speed-sensing units A, B, and C each have their own MPU, as well as their own operator interface and their own 220 Vac power supply.

 

MPU functional status and overall system operations can be monitored on each unit’s operator interface, which has a two-line LCD and touchpad. Here, tunable parameters such as MPU Failed Set Point and Trip Set Point are programmed. The LCDs will also display error codes, should any unit trip or any problems arise within the 9905-986 system. In the event of a tripped speed-sensing unit, CPU failure, or MPU failure, there are also LED indicators to alert operators of the issue. Some events, such as an activated trip relay, may also be set to trigger an alarm output.

 

The 9905-986 overspeed protection device is in a locked enclosure, which is certified NEMA 4X when the optional stainless steel hubs are used. This ProTech 203 device samples prime mover speed every 5 ms and has an accuracy rating of 0.05% of point + 2 Hz over the operating temperature range when properly installed and operated.

 

Woodward ProTech 203 manual 85195 has more product specifications for model 9905-986, including location requirements that should be reviewed before installing this system. Woodward manuals 82715, 82510, and 50532 also contain information relevant to the safe handling of this device.

Reviews For 9905-986
Internal Review

Installations of the Woodward 9905-986 in areas with severe electromagnetic interference (EMI) may require shielded cable run in conduit, double-shielded wire, or other precautions. Consult with a certified professional and the User Manual for recommendations. - AX Control Tech Teams

Repair Services For 9905-986

Type Lead Time Price Action
Repair Service 1-2 weeks $5009

Our highly skilled technicians can repair your 9905-986. 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
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All Motors: 1 Year
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9905-986 Manuals, White Papers, Data Sheets, and Troubleshooting