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  • Inverter Introduction
    • June 10. 2021

    As we know, VFD drive play a major and very important role in nowadays. It can help the world life more comfortable and sustainable. Variable Frequency Drive for short can called VFD, other names can also called AC Drive, Frequency Inverter, Frequency Converter, adjustable speed drive, adjustable frequency drive, variable speed drive and microdrive. A VFD drive is a type of motor controller that d...

  • About Variable Frequency Drive (VFD)
    • June 21. 2021

    A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter. Frequency (or hertz) is directly related to the motor’s speed (RPMs). In other words, the faster the f...

  • 5 Important AC Drive VFD Limitations
    • June 22. 2021

    There are 5 important AC drive VFD limitations that should be considered when selecting the proper VFD for motor speed control applications. A VFD is an electronic circuit that controls the speed of an electric motor by adjusting both the voltage and the frequency applied to the motor. Prior to VFDs, motor speed was controlled through inefficient voltage regulators or mechanical means – ...

  • AC Drives vs DC Drives: Which is best for you?
    • June 25. 2021

    What is an electric drive? An electric drive is used to control the motion and speed of motors, robots and/or other electrical devices. Usually, a drive will have one or several electric motors. In the modern day, any control offered by these devices is often aided by software, which can help control accuracy. There are two main types of electric drives: AC drives and DC drives. What is an AC driv...

  • V9 Series AC Drive Fault Diagnostics Indications
    • July 02. 2021

    If the drive faults, the drive output is disabled so that the drive stops controlling the motor, and the following fault code will be displayed on the keypad, the fault contact output operates too. Even if a fault is the same, they are displayed differently on LCD keypad and LED keypad. These are all explained in the below table. For details, refer to the following table to identify and correct th...

  • V5/V6-GH/GA Series Crane Hoist AC drive Fault Code and Troubleshooting
    • July 22. 2021

    Fault number Fault Code Fault Description Possible Causes Countermeasure 1 E.oc1 Over current protection when acceleration operation Low grid voltage Check input power supply Startup during motor free rotation Restart after the motor standstill Rotating inertial of load is too large or shock load is too heavy Increase the acceleration time and reduce the sudden change of load Improper setting moto...

  • FV20-M Mini Compact AC Drive Fault Code Diagnosis
    • July 26. 2021

    FV20−M serial inverter is equipped with complete protection functions to provide efficient protection while utilizing its performance sufficiently. Some failure instructions may be displayed during operation. Compare the instructions with the following table and analyze,assess the causes and solve failures. Failure No. Failure code Failure description Potential causes Solutions Number 01 E. SC Out...

  • VTS30 Mini Book-style Variable Speed Drive Fault Code and Troubleshooting
    • July 28. 2021

    This chapter lists all the faults messages including the possible causes and corrective actions. If the drive faults, the drive output is disabled so that the drive stops controlling the motor, and the following fault code will be displayed on the keypad, the fault contact output operates too. Even if a fault is the same, they are displayed differently on LCD keypad and LED keypad. These are all e...

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