Voltage-frequency characteristic curve
The asynchronous motor follows a load-dependent voltage/frequency characteristic in V/f operating modes. The motor model is continuously calculated in VFC operating mode. At startup, set the characteristic curve with rated motor voltage and rated motor frequency. The setting determines the speed-dependent torque and power characteristics of the asynchronous motor.
The following figure shows an example of the voltage/frequency characteristic curves of an asynchronous AC motor 230/400 V, 50 Hz.
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1 Star connection; 400 V, 50 Hz 2 Delta connection 230 V / 50 Hz 3 Delta connection; 400 V, 87 Hz (startup 230 V, 50 Hz) |
The MOVITRAC® B output voltage is limited by the provided supply voltage.
