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FAQ within [ FREQROL-A700 ]

141-150 of Total 352

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  • Frequency setting

    Yes.The inverter requires the start signal and frequency setting signal. More Details >>

    • No：21793
    • Release Date：2018/08/22 16:29

  • Frequency

    It seems that calibration for 20 mA current signal input is not correct.Use the calibration parameters "126" and "C7" to calibrate the inverter.Perform calib... More Details >>

    • No：21785
    • Release Date：2018/08/22 16:29

  • Monitor indicator

    Set Pr.37 (Speed display) to the speed obtained when operating the machine at the frequency set with Pr.505 (Speed setting reference). (For FR-F700/E700/D700... More Details >>

    • No：21716
    • Release Date：2018/08/22 16:29

  • Connecting ammeter to output side

    Yes. Use a moving-iron type ammeter. However, if the carrier frequency exceeds 5 kHz, do not use that meter since an overcurrent losses produced in the inter... More Details >>

    • No：21681
    • Release Date：2018/08/22 16:28

  • Terminal indicator lamp

    The inverter outputs the peak voltage 300 to 400 VDC of the bus voltage not in a pure sine wave but a in a PWM waveform. Check if the lamp to be connected ca... More Details >>

    • No：21323
    • Release Date：2018/08/22 16:27

  • Electromagnetic contactor

    It is not recommended to start and stop the inverter with the electromagnetic contactor (MC). This will accelerate the deterioration (due to the inrush curre... More Details >>

    • No：21322
    • Release Date：2018/08/22 16:27

  • FR-RC

    Pr.30 = "1" and Pr.70 = "0". More Details >>

    • No：21143
    • Release Date：2018/08/22 16:26

  • Setting dial

    Yes. You can use the setting dial of the inverter to set the frequency as well as change the parameter values. More Details >>

    • No：21846
    • Release Date：2018/08/22 16:29

  • Running frequency

    Check the setting of Pr.1 (Maximum frequency) and Pr.18 (High speed maximum frequency).Pr.1 is initially set to "120 Hz". More Details >>

    • No：21821
    • Release Date：2018/08/22 16:29

  • Multi-speed setting and external potentiometer

    The multi-speed setting is prioritized.The external potentiometer setting is effective when the multi-speed signal is not input. More Details >>

    • No：21773
    • Release Date：2018/08/22 16:29

141-150 of Total 352

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