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  • V5-H Series VFD Drive Frequently Ask Questions About Technical Details
    • August 09. 2021

    FAQ I. Why have abnormal operation in vector control 2 without encoder speed feedback? (1) Check if there exists large difference between the motor rated current and inverter rated current (2) Check if complete motor data identification has been performed (3) Check if the lines for Hall sensor is loosen or dislocated for V5−H−4T18.5G/22L and above power class II. Why have abnormal operation in vec...

  • V6-H Series AC Drive Fault and Alarm Information
    • August 13. 2021

    the following fault code will be displayed on the operation panel, the fault contact output operates, and the output to motor is disable, the motor will coast to stop. For details, refer to the following table to identify and correct the cause of the fault. Fault No. Fault display on panel Fault description Possible causes Corrective actions 1 E.oc1 Over current during acceleration Low grid voltag...

  • V6-H Series VFD Drive Frequently Ask Questions About Debugging
    • August 17. 2021

    I.Why occur over current trip or over load trip in vector control 2 with encoder speed feedback? Check the parameter settings: (1)Check if the motor parameters are properly set (2)Check if the encoder pulse Pd.21 is properly set (3)Check if the encoder direction parameter of Pd.22 is properly set (4)Check if the ratio between motor and encoder Pd.24 is properly set Check the hardware connection (1...

  • how does a ac drive control speed
    • August 19. 2021

    The ac drive controls the speed of the pump and fan by changing the electrical energy supplied rather than damping the air- or water flow. It is like reducing the speed of a car by pressing less on the accelerator instead of using the brake to slow down the speed. The payback time of an ac drive is typically one year or less. Other benefits of using ac drive to control the speed of fan or pump are...

  • What are the applications of AC drive?
    • August 24. 2021

    Drives are widely used in manufacturing industries to regulate and control rotating equipment such as fans, conveyors, machine spindles, and pumps, which are used in production processes. AC drives are widely used in process industries to increase the efficiency of equipment. It controls the speed of electric motors according to the process needs, typically reduces energy consumption by 35-40%. Ho...

  • Variable Frequency Drive VS Variable Speed Drive
    • August 26. 2021

    In modern industries, electric motors are playing a important role in modern technology. In an effort to decrease electric motor energy consumption in these energy-hungry devices―and optimize their efficiency―manufacturers have employed various drive-technologies to modify the motors' speed. These technologies, which include universal variable frequency drives (VFD, AC Drive Converter) and variabl...

  • What is the difference between a soft starter and a VFD (variable frequency drive) for electric motors?
    • September 03. 2021

    The major difference between soft starter and VFD are as follows. 1. Soft starter is used to start and stop the motor smoothly., without jerk load. 2. The starting torque delivering capacity of the soft starter is poor as V/f ratio or the flux is much lower than the rated capacity of the motor flux. It is suitable for the driven equipment which start at almost no load. 3. VFD is also soft start an...

  • V&T Special Inverter Drive For Crane&Hoist
    • September 06. 2021

    High performance Crane Inverter Drive uses torque vector control technology. Large torque, fast response, reliable stability, and perfect protection. Provide a full set of solutions for port machinery, grab bucket control, and traveling crane. Gantry crane  Tower crane Building hoist Tyre crane Grab bucket crane Portal crane Electric hoist Cargo lift Traveling crane

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