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FAQ within [ FREQROL-A700 ]

341-350 of Total 352

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  • Brake unit

    The resistors cannot be used in combination other than described. Operations of brake units and inverters are not verified. When resistors are used in uncert... More Details >>

    • No:21328
    • Release Date:2018/08/22 16:27
  • Real sensorless vector control

    For tuning of a single motor with no load, set Pr.96 to "101". When a load is connected, set Pr.96 to "1" (without motor rotation). Since Real sensorless vec... More Details >>

    • No:21325
    • Release Date:2018/08/22 16:27
  • 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
  • Auto tuning

    Auto tuning can help to apply appropriate voltage to the load and decrease the current. Since the electronic thermal O/L relay trips, check that the rated mo... More Details >>

    • No:21292
    • Release Date:2018/08/22 16:26
  • Life diagnosis

    When Pr.259 (Main circuit capacitor life measuring) is set to "1", the life diagnosis is ready. Turning OFF the power supply starts measuring the life of the... More Details >>

    • No:21283
    • Release Date:2018/08/22 16:26
  • Brake resistor

    When the built-in brake resistor is used, the regenerative brake duty is as follows:200 V 0.4K to 3.7K: 3%, 5.5K to 7.5K: 2%400 V 0.4K to 7.5K: 2 % The capac... More Details >>

    • No:21273
    • Release Date:2018/08/22 16:26
  • Changing the control method

    Set Pr.71 (Applied motor), Pr.80 (Motor capacity), Pr.81 (Number of motor poles), and Pr.800 (Control method selection). More Details >>

    • No:21245
    • Release Date:2018/08/22 16:26
  • Electronic bypass function

    No, it cannot be normally closed contact. When the electronic bypass function is used, the setting of Pr.17 is disabled. More Details >>

    • No:21193
    • Release Date:2018/08/22 16:26
  • Electronic bypass function

    Turn ON and OFF the RES signal to enable the inverter-driven operation. More Details >>

    • No:21190
    • Release Date:2018/08/22 16:26
  • Electronic bypass function

    With the automatic bypass sequence (Pr.139 ≠ 9999, Pr.159 = 9999), the motor operation is switched to commercial power supply operation when the output frequ... More Details >>

    • No:21189
    • Release Date:2018/08/22 16:26

341-350 of Total 352

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