Technical data and characteristics
4.3 Offset of the voltage limit characteristic
1PH7 induction motors (Machine tools)
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
87
4.3 4.3 Offset of the voltage limit characteristic
The characteristics in chapter "P/n and M/n characteristics" refer to the Active Line Module,
U
supply
= 400 V. The output voltage U
mot
is 425 V.
In order to identify the motor limits with an output voltage other than 425 V, the plotted
voltage limiting characteristic must be shifted accordingly for the new output voltage.
Calculating the new voltage limiting characteristic
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Example: Calculating the new voltage limiting characteristic for operation on an SLM, U
supply
= 400 V,
output voltage U
mot
= 380 V
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