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FAQ within [ FREQROL-E500 ]

61-70 of Total 85

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  • Analog signal resolution

    The internal processing speed is not published. The analog input specifications are as follows: FR-A500???1/4000FR-E500???1/1000MR-H???1/4000 More Details >>

    • No：21550
    • Release Date：2018/08/22 16:28

  • 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

  • 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

  • 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

  • Soft-PWM

    The inverter uses PWM control to change the output voltage and frequency to vary the motor speed. PWM stands for Pulse Width Modulation. Voltage is chopped i... More Details >>

    • No：21549
    • Release Date：2018/08/22 16:28

  • 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

  • Dealing with Err.

    The following causes are probable for persistent Err. display: 1. The terminals RES and SD are always short-circuited. 2. Operation panel contact or operatio... More Details >>

    • No：21412
    • Release Date：2018/08/22 16:27

  • Noise from motor at low speed

    It is considered to be caused by inverter PWM control. It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage cu... More Details >>

    • No：21428
    • Release Date：2018/08/22 16:27

  • 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

  • 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

61-70 of Total 85

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