Siemens Simatic ET 200pro FC, Руководство по эксплуатации

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Commissioning and optimization (software)
7.2 Commissioning and optimization of the frequency converter and motor combination
ET 200pro FC
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Operating Instructions, 07/2016, A5E01100763B AC
The rating plate data represents the initialization values for the identification. This is the
reason that it is necessary to have the correct input from the rating plate data when
determining the data specified above.
Image 7-1 Equivalent circuit diagram (ECD)
In addition to the ECD data, the motor magnetizing characteristic (see the figure above) can
be determined using the motor data identification (P1900 = 3). If the motor-inverter
combination is operated in the field-weakening range (which is above the nominal frequency
of the motor), then this characteristic should be determined, especially when Vector control
is being used. As a result of this magnetizing characteristic, the Inverter can, in the field-
weakening range, accurately calculate the current which is generated in the field and in-turn
achieve a higher torque accuracy.
Image 7-2 Magnetizing characteristic
The motor data identification is carried-out with the motor at a standstill and it takes,
including the data calculation per selection (P1900 = 2 or 3), between 20 seconds and 4
minutes to complete. While the motor data identification is active A0541 is displayed. The