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FAQ within [ FREQROL-V200 ]

1-10 of Total 52

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  • Encoder signal output

    It can be output by attaching the plug-in option FR-VPA, FR-VPB, or FR-VPC. Note that the output format depends on the option type. FR-VPA: Open collector ou... More Details >>

    • No:21643
    • Release Date:2018/08/22 16:28
  • Torque control accuracy

    Since the torque control accuracy is influenced by change of motor temperature:- Standard product???±5% (at 75 deg C) ±0.5%/deg C of rated torque- Combinatio... More Details >>

    • No:21645
    • Release Date:2018/08/22 16:28
  • Static torque

    When a vector inverter is used for position control, the servo lock works when it is stopped. When the start signal (STF or STR) is turned ON, the servo lock... More Details >>

    • No:21502
    • Release Date:2018/08/22 16:28
  • 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
  • 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
  • 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
  • Geared motor

    We do not offer a geared motor. More Details >>

    • No:21647
    • Release Date:2018/08/22 16:28
  • Applicable motors

    In addition to the dedicated motor (SF-VR series), the SF-JR series motor with an encoder can be used. You can also use a standard motor by combining it with... More Details >>

    • No:21653
    • Release Date:2018/08/22 16:28
  • Difference from general-purpose inverter

    While the inverter uses open-loop (V/F) control, it uses semi-closed loop vector control (constant current control). This enables output of stable torque esp... More Details >>

    • No:21659
    • Release Date:2018/08/22 16:28
  • Rotations per minute vary

    It is considered that conditions including the power supply and noise change whether the parameter unit is connected or disconnected, influencing the analog ... More Details >>

    • No:21454
    • Release Date:2018/08/22 16:27

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