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FAQ within [ FREQROL-A100 ]

1-10 of Total 21

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  • Energy saving effect of inverter oper...

    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

  • What happens if reset occurs during o...

    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

  • 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

  • Cause of overcurrent (OC2) at constan...

    First of all, capacity reduction of the main circuit electrolytic capacitor is probable. Usually, the electrolytic capacitor is replaced every 5 years on ave... More Details >>

    • No：21407
    • Release Date：2018/08/22 16:27

  • Driving 200 V motor by 400 V inverter

    A 400 V inverter does not operate when 200 V is supplied to it, therefore the motor does not rotate. A 200 V motor can be rotated by a 400 V inverter, howeve... More Details >>

    • No：21446
    • 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

  • Terminal AM calibration

    1. By setting Pr.158 (Terminal AM function selection) to "21" (Reference voltage output), 10 V is output from the terminal AM.2. Read Pr.901 in the PU operat... More Details >>

    • No：21936
    • Release Date：2018/08/22 16:30

  • Compatibility of plug-in option

    Use the plug-in option dedicated for the FR-A100EXCELLENT. To avoid an incorrect installation, the connector position for the plug-in option and the FR-A100E... More Details >>

    • No：21632
    • Release Date：2018/08/22 16:28

  • A100 inverter loss

    The inverter efficiency (power factor) for the inverter alone is approximately 75 to 80%. However, by installing the power factor improving DC reactor to the... More Details >>

    • No：21512
    • 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

1-10 of Total 21

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