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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

  • 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

  • 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

  • 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

  • Instantaneous power failure of facili...

    1. If the start signal is present when the power and communication restore, the inverter starts operation. 2. Similarly to the above, if the start signal is ... More Details >>

    • No：22093
    • Release Date：2018/08/22 16:30

  • Output side earth (ground) fault over...

    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

  • 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

  • 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

  • Inverter drive of 400 V class motor

    When the wiring between the inverter and motor is long, surge voltage occurs at the terminal of the motor.This surge voltage deteriorates insulation of the m... More Details >>

    • No：21926
    • Release Date：2018/08/22 16:30

1-10 of Total 85

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