700-FSY2DU23 Allen-Bradley Controller module

Description

700-FSY2DU23 Allen-Bradley Controller module

Product Dimensions：

Product Description

The Allen-Bradley 700-FSY2DU23 belongs to the 700-FS series of high-performance timing relays. It is a single-function device specifically designed to automate the starting process of a three-phase motor using the Star-Delta (Wye-Delta) starting method.

This method is used to reduce the high inrush starting current of large motors. The relay controls the sequencing and timing of three contactors: the Main, the Star (Wye), and the Delta.

• Star (Wye) Connection: The relay initially closes the Main and Star contactors for a set time (the starting time).

• Delta Connection: After the delay, the relay opens the Star contactor and then closes the Delta contactor, allowing the motor to run at full speed.

• The “Y” in the catalog number 700-FSY2DU23 denotes the Star-Delta function.

Product Parameters

Product Advantages

• Dual Voltage Capability: The wide input voltage range (24V DC up to 240V AC) simplifies inventory and makes the relay highly flexible for various control panel designs globally.

• High Performance: Features robust construction and high repeatability, which is crucial for reliable motor starting sequences.

• Reduced Starting Current: Effectively manages the Star-Delta transition, significantly reducing the mechanical shock and high electrical inrush current associated with direct-on-line starting of large induction motors.

• Space Saving: The compact 22.5 mm width allows for high-density installation in control cabinets, maximizing panel space.

Precautions

• Motor Interlocks: This relay provides the timing, but proper motor control circuits must include mechanical and electrical interlocks between the Star and Delta contactors to prevent short circuits.

• Timing Adjustment: Ensure the time delay is set correctly based on the specific motor’s acceleration characteristics. Setting the time too short or too long can damage the motor or the machinery.

• Functionality: This is a Star-Delta Timer only. If you require other timing functions (On-Delay, Off-Delay, Flasher, etc.), a multi-function timing relay from the 700-FS series would be needed.

• Discontinued Product: Please note that the 700-FSY2DU23 has been discontinued by the manufacturer (Rockwell Automation). A functional replacement is generally available, such as the 700-FSY7UU23 or other current models.

Product Applications

The 700-FSY2DU23 is used wherever large three-phase induction motors require a reduced voltage starting method:

• Pumps and Compressors: Used to start high-horsepower pumps and air compressors smoothly to limit stress on the mechanical system and the power grid.

• Fans and Blowers: Essential for safely accelerating large ventilation and HVAC fans.

• Conveyor Systems: Implementing controlled, soft starts for long conveyor belts and material handling systems.

• General Machinery: Any application involving large induction motors where starting current must be minimized.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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