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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

  • Energy saving effect of inverter operation

    Energy saving operation of the inverter is represented by comparison with commercial power supply operation. 　For example, to control air volume of an air co... More Details >>

    • No：21622
    • 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

  • What happens if reset occurs during operation?

    This is because when the inverter restarts while the motor is coasting, an overcurrent trip can occur during the restart process. However, the recent types o... More Details >>

    • No：21477
    • Release Date：2018/08/22 16:27

  • Surge voltage of 400 V inverter

    No. Although the carrier frequency increases or decreases the switching count, the switching speed is the OFF-to-ON speed of the IGBT element of the inverter... More Details >>

    • No：21401
    • Release Date：2018/08/22 16:27

  • 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

  • Power factor improving effect by option

    Installing the high power factor converter brings the power factor improving effect of 99% or higher.Therefore, when the high power factor converter is used,... More Details >>

    • No：22020
    • Release Date：2018/08/22 16:30

  • 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

  • CC-Link

    The inverters FR-A200 and V200 do not support CC-Link. (The FR-A500 series supports CC-Link.) Use the open collector output and relay output card when combin... More Details >>

    • No：21504
    • Release Date：2018/08/22 16:28

1-10 of Total 52

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