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FAQ within [ FREQROL-V200 ]

1-10 of Total 52

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  • Meaning of OL display

    "OL" stands for "overload". Whenever current of 150% or more of the inverter rated current flows, "OL" is ON. If you continue operation with "OL" is displaye... More Details >>

    • No：21449
    • Release Date：2018/08/22 16:27

  • Operation under torque limit in the speed control mode

    Under a 50% torque limit, if the commanded speed (50 Hz in your example) cannot be achieved without torque exceeding 50%, since the torque does not exceed th... More Details >>

    • No：21483
    • Release Date：2018/08/22 16:27

  • Surge voltage of 400 V motor

    When the wire between the 400 V inverter and motor is long (20 m or longer), surge voltage occurs momentarily. This voltage is as two or more times as the DC... More Details >>

    • No：21404
    • Release Date：2018/08/22 16:27

  • 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

  • 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

  • Automatic restart after instantaneous power failure

    The inverter has the automatic restart after instantaneous power failure function. By setting Pr.61 to other than "9999", the encoder detects the speed of th... More Details >>

    • No：21642
    • Release Date：2018/08/22 16:28

  • Amount of heat generated

    The following amount of heat is generated under the 100% load. (The same amount for both the 200 V and 400 V classes. The amount of heat generated by the bui... More Details >>

    • No：21568
    • Release Date：2018/08/22 16:28

  • Inverter drive of 400 V class motor

    When the wiring between the inverter and motor is long, surge voltage occurs at the terminal of the motor.This surge voltage deteriorates insulation of the m... More Details >>

    • No：21926
    • Release Date：2018/08/22 16:30

  • Use of general-purpose servo motor

    You can operate it by adjusting the motor constant by the auto tuning function. (Note that the same characteristics as operated by the servo amplifier MR-VA ... More Details >>

    • No：21652
    • Release Date：2018/08/22 16:28

  • Manufacturing of 6P dedicated motor

    We cannot manufacture a 6P by SF-VR dedicated motor. Use a motor with 6P encoder. More Details >>

    • No：21646
    • Release Date：2018/08/22 16:28

1-10 of Total 52

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