20BD034A0AYNAND0 PowerFlex 700

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The 20BD034A0AYNAND0 is a Variable Frequency Drive (VFD) which belongs to the Allen-Bradley PowerFlex 700 drives that is designed to implement speed control and other basic motor control requirements ranging from simple fan applications to complex, cascaded, parallel positioning and modulating motor control requirements.

This drive is especially configured for Vector control which best fits processes with fluctuating load demands. It is also capable of droop control to complement this feature where load sharing may be implemented. One common application where load changes continuously and load sharing may be implemented is a Boiler control system.

Modulating the speed of an AC motor enables the equipment to be used in complex control techniques. It may be used in pumping applications where pump rate is regulated, depending on the load. Further, it may be installed in Duplex or Triplex pump set where automatic scheduling of active pumps or load sharing may be implemented. With load sharing, pumps may be designed to equally distribute the load or one may operate in base load while the other is constantly changing the pump rate according to the load change. This prevent the pumps from hunting or alternately changing speed form 0 - 100%.

Another suitable application for this Vector and Droop Control capable pump is load sharing in combustion control systems such as boilers systems or applications that share a common header of output from individual connection or material source. The internal Proportional + Integral (P+I) algorithm may also be used with the Vector and Droop feature. This way, the VFD itself becomes a single loop controller. VIIIVThe 20BD034A0AYNAND0 is a PowerFlex 700 adjustable frequency AC drive. This drive has a Voltage Input rated 480VAC, 3-phase and output Voltage of 0-480VAC with rated Current of 34.0 A, Power of 25.0 HP with filtered emission and configured for Vector control.