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FAQ within [ FREQROL-V200 ]

31-40 of Total 51

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  • Motor characteristics at low input voltage

    Since the dedicated motor is designed with the rated voltage of approximately 320 V, it can produce sufficient torque for the input voltage of 380 V. Therefo... More Details >>

    • No：21434
    • Release Date：2018/08/22 16:27

  • Encoder

    It is necessary for vector control operation. Use a dedicated motor or a motor with an encoder. If you use another manufacturer's motor, use an encoder capab... More Details >>

    • No：21650
    • Release Date：2018/08/22 16:28

  • Reusing parameter units

    You cannot reuse the parameter unit (FR-PU01) for the FREQROL-Z series, the parameter unit (FR-PU02) for the FREQROL-A200 and A100 series, and the parameter ... More Details >>

    • No：21654
    • Release Date：2018/08/22 16:28

  • Encoder cable length restriction

    If the cable length is longer than 100 m, speed may not be read correctly due to voltage drop and waveform deformation of the encoder signal. Therefore, use ... More Details >>

    • No：21932
    • Release Date：2018/08/22 16:30

  • Can I change the carrier frequency?

    You can change it by changing the setting of Pr.72 (PWM frequency selection). Setting range of Pr.72: 0, 1, 2, 3, 4, 5, 6 (Initial setting is "6".) (The smal... More Details >>

    • No：21640
    • Release Date：2018/08/22 16:28

  • Unwinding using vector inverter

    1. Torque control automatically adjust the speed so that the instructed torque value is maintained. This means that the speed is not controlled. (However, yo... More Details >>

    • No：21420
    • Release Date：2018/08/22 16:27

  • Driving 200 V motor by 400 V inverter

    A 400 V inverter does not operate when 200 V is supplied to it, therefore the motor does not rotate. A 200 V motor can be rotated by a 400 V inverter, howeve... More Details >>

    • No：21446
    • Release Date：2018/08/22 16:27

  • Meaning of OL display (2)

    Yes. "OL" is displayed under speed control whenever the torque limit is reached without regard to the rated torque. More Details >>

    • No：21448
    • Release Date：2018/08/22 16:27

  • Connecting potentiometer

    Connect the external potentiometer to the terminals 10, 2, and 5 of the first inverter (be sure to connect the variable terminal to the terminal 2).　Connect ... More Details >>

    • No：21462
    • Release Date：2018/08/22 16:27

  • Inverter current characteristics

    In general, relationship between T (torque), K (constant), V (voltage), I (current), and F (frequency) is expressed as "T = K × (V/F) × I". Since (V/F) is co... More Details >>

    • No：21505
    • Release Date：2018/08/22 16:28

31-40 of Total 51

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