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FAQ within [ FREQROL-E500 ]

1-10 of Total 85

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  • Error E.LF

    Measure the megger values on the inverter's output side.If there is no problem:If the motor capacity is extremely smaller than the inverter capacity (as a gu... More Details >>

    • No:21933
    • Release Date:2018/08/22 16:30
  • Deceleration overvoltage (E.OV3)

    While the FREQROL-Z200 series and A500 series have a brake resistor built in the capacity up to 7.5K, the FREQROL-E500 series does not have a built-in brake ... More Details >>

    • No:21993
    • Release Date:2018/08/22 16:30
  • Err display on operation panel

    The following causes are probable for this Err display:- Operation error (for example, you tried to input a value other than the available range of parameter... More Details >>

    • No:22063
    • Release Date:2018/08/22 16:30
  • Output side earth (ground) fault overcurrent protection

    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
  • Output phase loss alarm

    If the output current is close to 25% of the rated current, output phase loss may occur when one or two phases of three phases go below 25%.Therefore, when a... More Details >>

    • No:22052
    • Release Date:2018/08/22 16:30
  • Parameter No.79 (Operation mode)

    You cannot cancel multi-speed command input. When the multi-speed command is input from the terminal, you cannot use the potentiometer. Use the inverter so t... More Details >>

    • No:21467
    • 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
  • 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
  • Automatic overload control of inverter

    The inverter has the current limit function. This automatically controls the frequency so that the preset current value may not be exceeded. (Note that the m... More Details >>

    • No:21409
    • Release Date:2018/08/22 16:27
  • 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

1-10 of Total 85

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