Woodward 9907-147control governor Module

 Product Details

◆ 9907-147 uses magnetic pickups to monitor primer speed for overspeed conditions. Devices in this series are susceptible to electromagnetic interference, vibration, moisture, and temperatures outside of the operating temp range of –25 to +60 °C (–13 to +140 °F). ProTech overspeed protection models should be installed in locations that allow adequate ventilation for cooling, space for servicing, and away from direct sunlight, and away from high-current or high-voltage devices.

This de-energize-to-trip system has a 100 Hz to 32 kHz speed-sensing frequency range and a ±(0.05% x Trip Point in Hz +2 Hz) accuracy rating. Overspeed detection functions are carried out by three individual speed-sensing units, which act independently to monitor speed and perform speed calculations. The three units are in a two-out-of-three vote configuration, so a prime mover trip relay will only occur if overspeed conditions are detected by at least two of the units.

The trip-point frequency range of ProTech overspeed protection model 9907-147 is 250 Hz to 25 kHz. Trip set points are programmed for each of the units separately (they must be programmed identically for accurate outputs) using the operator interfaces. There is one interface per speed-sensing unit. Each one has:

• Two-line by 16-character LCD display
• Touchpad
• Potentiometer
• LED indicators
• Alarm output

Programming and testing functions are locked to prevent unauthorized changes. One key switch to move between MONITOR mode and PROGRAM mode is connected to all three units.

Performance characteristics

Control accuracy: The use of advanced digital technology can achieve high-precision position control and provide precise servo control for various industrial automation applications.

Compatibility: It can be used with various types of hydraulic or pneumatic actuators, and can receive position demand signals from the controller, which can be transmitted through DeviceNet, 4-20mA or both.

Feedback mechanism: Single-coil actuators can be used with single or dual position feedback devices to ensure accurate position feedback and control.

Environmental adaptability: The operating temperature range is -15℃ to +60℃ (-5℉ to +140℉), with NEMA 4 and 4X protection levels, suitable for use in harsh environmental conditions such as dusty and humid environments.

FAQ
Q: What is the earliest time when you can make delivery?
A: We will make delivery once received your payment.

Q: If the product can’t work, can it be returned?
A: We provide one year warranty.

Q: How easy is it to obtain items?
A: New are no longer continuously manufactured, and therefore supply is scarce.
However, at chang xin  we specialize in sourcing hard-to-find products, and although
the lead time varies, the average is between 5-7 business days.

Q: What is the typical price for the items?
A:chang xin Automation always gives customers excellent service and prices that
are highly competitive.Requirements for delivery and availability do affect pricing.

chang xin is an expert with more than 16 years of experience in the industrial parts market.
We often serve companies that have discontinued equipment or often need buy spare

parts as stock.We all know that the time of discontinued products is very important for companies

that need to keep their equipment up and running.So you just could enter the model or brand you

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