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Siemens SINAMICS S120 Configuration Manual Page 44

Synchronous motors.
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Electrical data
4.2 Voltage limiting characteristics
Example of offset of voltage limiting characteristic curve without field weakening
Motor 1FK7032-5AK71; k
U
mot, new
U
iN
Condition: U
Enter and connect points P2 and P4. This line is the new voltage limiting characteristic curve
for converter output voltage U
44
E
= 290 V; calculated with U
= k
∙ nN/1000; U
= 45 ∙ 6000/1000 = 270 V
E
iN
> U
is fulfilled.
mot, new
iN
= 45 V/1000 RPM
= 425 V
mot
.
mot, new
Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
Synchronous Motors 1FK7

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