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FAQ within [ FREQROL-V200 ]

31-40 of Total 52

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  • Speed fluctuation ratio

    1. Speed fluctuation ratio when using the FR-V200 + dedicated motor (with an encoder) The vector inverter FR-V200 detects speed by the encoder and speed fluc... More Details >>

    • No：21489
    • Release Date：2018/08/22 16:27

  • Motor characteristics at low input voltage

    Since the dedicated motor is designed with the rated voltage of approximately 320 V, it can produce sufficient torque for the input voltage of 380 V. Therefo... More Details >>

    • No：21434
    • Release Date：2018/08/22 16:27

  • Angular velocity change control

    The inverter itself does not have a function to detect the rotation angle and change the velocity accordingly. Therefore, to implement required control, it i... More Details >>

    • No：22086
    • Release Date：2018/08/22 16:30

  • Coasting to stop method

    Use Pr.17 (Input terminal assignment) to assign MRS to the terminals DI1, DI2, and DI3. More Details >>

    • No：21937
    • Release Date：2018/08/22 16:30

  • Difference from general-purpose inverter

    While the inverter uses open-loop (V/F) control, it uses semi-closed loop vector control (constant current control). This enables output of stable torque esp... More Details >>

    • No：21659
    • Release Date：2018/08/22 16:28

  • Encoder

    It is necessary for vector control operation. Use a dedicated motor or a motor with an encoder. If you use another manufacturer's motor, use an encoder capab... More Details >>

    • No：21650
    • Release Date：2018/08/22 16:28

  • Encoder signal output

    It can be output by attaching the plug-in option FR-VPA, FR-VPB, or FR-VPC. Note that the output format depends on the option type. FR-VPA: Open collector ou... More Details >>

    • No：21643
    • Release Date：2018/08/22 16:28

  • Unwinding using vector inverter

    1. Torque control automatically adjust the speed so that the instructed torque value is maintained. This means that the speed is not controlled. (However, yo... More Details >>

    • No：21420
    • Release Date：2018/08/22 16:27

  • Encoder cable length restriction

    If the cable length is longer than 100 m, speed may not be read correctly due to voltage drop and waveform deformation of the encoder signal. Therefore, use ... More Details >>

    • No：21932
    • Release Date：2018/08/22 16:30

  • Regeneration unit

    You can reuse the brake units used with the FR-A series, including the FR-RC power regeneration converter, FR-BU, and BU brake unit. You can also use the hig... More Details >>

    • No：21658
    • Release Date：2018/08/22 16:28

31-40 of Total 52

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