Lenze DSD - Manual (Page 347)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
347
11 Drive Dimensioning
11.6 Inverters
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[11-17] Diagram concerning the output current of the inverter
[11-18] Motor torque characteristics
In the diagram the characteristic curve is transformed to the time period. Additionally the rated
torque that is reduced due to the temperature and the site altitude is presented. The different char-
acteristics of the motor torque and the torque at the motor shaft render the proportion of the motor
moment of inertia clearly visible.
 Required motor current
 Reduced output current (temperature, amount, cycle rate, voltage)
 Reduced maximum current (cycle rate, voltage)
M
out,M
Torque at the motor shaft
M
M
Motor torque
M
max
Limit characteristic
M
rated,red
Rated torque