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  • 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...

  • What’s the difference between AC and DC drives?
    • June 28. 2021

    When it comes to AC drives vs DC drives, DC drives are commonly considered problematic, despite their prestige for having simple circuits, providing high start-up torque, and being ideal for applications with constant speed due to the requirement of commutators and brush assemblies in their motors. These motors can become worn over time, have operational issues, and will likely require labor to pr...

  • 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...

  • Variable Frequency Drive Application Guide
    • July 07. 2021

    Variable Frequency Drive (VFD) can be used in lots of fields. Variable frequency drives are widely used to control the speed of AC motors, like conveyor systems, blower speeds, pump speeds, machine tool speeds, & other applications that require variable speed with variable torque. In some applications such as speed control for a conveyor, the variable frequency drive is installed with a remote...

  • The Technology Behind AC Motor Speed Control
    • July 06. 2021

    AC drive is a device that is used to control the speed of an electric motor. The speed is controlled by changing the frequency of the electrical supply to the motor. The three-phase voltage in the national electrical grid connected to a motor creates a rotating magnetic field in it. The rotor of the electrical motor will follow this rotating magnetic field. Motor Speed Control The speed is control...

  • AC Drive Universal Problems
    • July 14. 2021

    To ensure the AC drive functions reliably, proper considerations must be given to installation such as the specification of the motor, incoming, outgoing cables and the environmental parameter it operates in. As with any electrical types of equipment, AC drives can deteriorate after prolonged use even if it was installed properly. It helps to spot signs of imminent damage on the AC Drive early on ...

  • E5 Series Vector Control AC Drive Fault Code and Troubleshooting
    • July 16. 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...

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