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FAQ within [ FREQROL-A024 ]

1-10 of Total 40

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  • Output side earth (ground) fault over...

    1. How much is the sensitivity current? When the sum of the three-phase output current of the inverter reaches approximately 70% of the inverter rated curren... More Details >>

    • No:21394
    • Release Date:2018/08/22 16:27
  • 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
  • Features of parameter unit FR-PU03

    This parameter unit realizes both easy operation and advanced operation. In normal operation, you only need to use six keys for easy operation. To perform ad... More Details >>

    • No:21614
    • 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
  • Parameter unit FR-PU03

    You can use it with the FR-A200 (E) and FR-A100 (E) series. (Note) Use the connection cable (option). You cannot use it with the FR-Z and FR-U series (except... More Details >>

    • No:21615
    • Release Date:2018/08/22 16:28
  • Fault display

    "E.OV3" is displayed when the voltage between the inverter terminals PN rises abnormally high while the inverter is decelerating or stopped. In this case, th... More Details >>

    • No:21411
    • Release Date:2018/08/22 16:27
  • Can I replace the cooling fan alone?

    The fan of the FR-A024 cannot be replaced by the customer. Mitsubishi Electric System & Service will replace it, so contact us to order it. More Details >>

    • No:22001
    • Release Date:2018/08/22 16:30
  • Range of carrier frequency

    You can vary the carrier frequency within the range of 0.7 to 14.5 kHz, and it is initially set to 1 kHz that generates low noise and leakage current. You ca... More Details >>

    • No:21607
    • Release Date:2018/08/22 16:28
  • Installation of new serial communicat...

    Remove the parameter unit FR-PU03 and install there. (The installation dimensions of the FR-CU03 are the same as the FR-PU.) You can read and write parameter... More Details >>

    • No:21617
    • Release Date:2018/08/22 16:28

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