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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

  • Automatic restart after instantaneous power failure

    1. Yes. The inverter cannot restart if STF and STR are turned OFF.However, on the next startup, the inverter detects coasting and restarts.2. When automatic ... More Details >>

    • No：21942
    • Release Date：2018/08/22 16:30

  • 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

  • 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

  • Torque control accuracy

    Since the torque control accuracy is influenced by change of motor temperature:- Standard product???±5% (at 75 deg C) ±0.5%/deg C of rated torque- Combinatio... More Details >>

    • No：21645
    • Release Date：2018/08/22 16:28

  • 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

  • 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

  • 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

  • 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

  • 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

1-10 of Total 52

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