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FAQ within [ FREQROL-A700 ]

81-90 of Total 352

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  • Wiring the terminal

    There is no problem with the wiring. Keep the rating (24 VDC, 0.1 A) of the terminal PC. More Details >>

    • No：21342
    • Release Date：2018/08/22 16:27

  • Countermeasure against noises

    Yes. The carrier frequency can be decreased by the setting of Pr.72 (PWM frequency selection). More Details >>

    • No：21338
    • Release Date：2018/08/22 16:27

  • Saving parameter with FR-Configurator

    When FR Configurator (FR-SW3-SETUP-WJ) is saved as a file from the menu, the extension is "me3". The size of this fie will be large since device settings and... More Details >>

    • No：21311
    • Release Date：2018/08/22 16:26

  • Graph function in FR-Configurator

    Even the USB is used, FR Configurator requires at least 50 ms sampling time (for each monitoring item). In this case, since three types of data are monitored... More Details >>

    • No：21310
    • Release Date：2018/08/22 16:26

  • Running frequency

    There are two methods to reduce the running frequency variation. 1. Increase the setting value of Pr.74 (Input filter time constant) to reduce the variation.... More Details >>

    • No：21296
    • Release Date：2018/08/22 16:26

  • Frequency setting signal

    Check the AU signal (AU - SD). To use the terminal 4, the AU signal (AU - SD) needs to be turned ON. Turning ON the AU signal (AU - SD) disables the terminal 2. More Details >>

    • No：21267
    • Release Date：2018/08/22 16:26

  • Model selection

    Use the FR-A740. Basically, select the capacity according to the calculation result of "rated inverter output current ? rated motor current × 1.1". More Details >>

    • No：21244
    • Release Date：2018/08/22 16:26

  • Input phase loss protection

    The initial value of Pr.872 is set to "1" (Valid) because the A701 have regeneration unit built-in and an overvoltage may occur when the regenerative operati... More Details >>

    • No：20945
    • Release Date：2018/08/22 16:25

  • Frequency setting

    You can use the setting dial together with the terminal 4.Set Pr.79 (Operation mode) to "3" (Combined operation mode) and assign the AU signal to an unused t... More Details >>

    • No：21856
    • Release Date：2018/08/22 16:29

  • Output voltage

    Since the output frequency was measured, it is considered that the start signal was input correctly.Check the output voltage on the voltage monitor of the in... More Details >>

    • No：21780
    • Release Date：2018/08/22 16:29

81-90 of Total 352

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