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FAQ within [ FREQROL-E500 ]

31-40 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

  • Communication operation with FR-E500

    We have no sample program for RS485 communication. Since the communication method of the FR-SW0-SETUP uses a different protocol from 485 communication and st... More Details >>

    • No：21451
    • Release Date：2018/08/22 16:27

  • Overcurrent

    Frequent occurrences of OL means that the inverter is overloaded. Since the inverter can go faulty if it is constantly overloaded, you need to take a counter... More Details >>

    • No：21430
    • Release Date：2018/08/22 16:27

  • Indication of potentiometer on operation panel

    The potentiometer on the operation panel is initially calibrated so that the maximum indication is slightly over 60 Hz with the potentiometer turned to the m... More Details >>

    • No：21427
    • 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

  • Inverter input power supply

    Square wave input is not recommended since it can cause failures (for example, damage the diode bridge). More Details >>

    • No：22106
    • Release Date：2018/08/22 16:31

  • Inverter general matters

    1. To perform emergency stop, it is recommended to have the motor coast and stop it using a mechanical brake.In this case, the output stop (MRS) signal is in... More Details >>

    • No：22103
    • Release Date：2018/08/22 16:31

  • Frequency display deviation

    If you are using an external VR, influence by noise is probable.Setting Pr.74 (Input filter time constant) to a higher value stabilizes the frequency command... More Details >>

    • No：22061
    • Release Date：2018/08/22 16:30

  • Parameter setting for FR-E500

    General-purpose magnetic flux vector control is effective at low speed under a heavy load.To shorten the acceleration time, use Pr.44 to set the second accel... More Details >>

    • No：22059
    • Release Date：2018/08/22 16:30

  • Notes when inverter capacity is larger than motor capacity

    When using one-rank-higher inverter, as you mention, you need to care about the setting of the electronic thermal O/L relay.Setting the electronic thermal O/... More Details >>

    • No：22040
    • Release Date：2018/08/22 16:30

31-40 of Total 85

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