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FAQ within [ FREQROL-E500 ]

21-30 of Total 85

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  • "Err" is displayed when STF signal turns ON

    Possible causes are:1. The reset signal (RES) is ON. 2. The built-in CPU is not working properly due to contact faults of the inverter parts. Check the exte... More Details >>

    • No:21484
    • Release Date:2018/08/22 16:27
  • Detection of the motor load

    An inverter is used to rotate a motor but it cannot be used to detect whether the belt is broken or not. However, the magnitude of the load will change when ... More Details >>

    • No:21387
    • Release Date:2018/08/22 16:27
  • Current monitor display

    The current monitor displays the average value of the three-phase current. The three-phase voltage is not incorporated for the voltage monitor. The output vo... More Details >>

    • No:21376
    • Release Date:2018/08/22 16:27
  • Speed change due to power supply voltage fluctuation

    1. The output frequency satisfies the "control specification/frequency precision" even when the power supply voltage changes, but the output voltage cannot r... More Details >>

    • No:22069
    • Release Date:2018/08/22 16:30
  • FR-E520 operation mode (Pr.79) selection

    The FR-E500 manufactured before May 1998 behaved as you mentioned, and the potentiometer becomes unavailable once you set the frequency on the operation pane... More Details >>

    • No:21525
    • Release Date:2018/08/22 16:28
  • Inverter

    You can use the Hioki Memory HiCorder and clamp-on AC/DC high tester.You can observe the inverter's frequency in one of the following two methods:1. Attach t... More Details >>

    • No:22082
    • Release Date:2018/08/22 16:30
  • Difference between SU (up to frequency) and FU (frequency detection)

    - SU signal (up to frequency signal)This signal is output when the inverter output frequency reaches the set frequency (the frequency the inverter is require... More Details >>

    • No:21436
    • Release Date:2018/08/22 16:27
  • Permissible brake duty

    When consuming the regenerative power with the brake resistor, the brake transistor is triggered at a certain voltage to make the brake resistor use the rege... More Details >>

    • No:22074
    • Release Date:2018/08/22 16:30
  • Parameter unit display

    Setting Pr.37 to the machine speed at 60 Hz switches the frequency monitor to the rotations per minute monitor.Note that the speed setting must be input in a... More Details >>

    • No:22072
    • Release Date:2018/08/22 16:30
  • Operation command terminal switching

    It rotates in the forward direction while STF is ON.And then, when STR is turned ON and STF is turned OFF, the inverter decelerates down to 0 Hz within the s... More Details >>

    • No:22070
    • Release Date:2018/08/22 16:30

21-30 of Total 85

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