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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 169
7Applications
7.16 General rotary drive
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7.16.1.1 Symbols used
7.16.2 Data for the entry
7.16.2.1 Moment of inertia of load
7.16.2.2 Friction torque of the load
7.16.2.3 Speed
7.16.2.4 Torque
Symbol Description Dimension unit
J
L
Moment of inertia of load kgm
2
M
dyn
Dynamic torque of the application Nm
MTotal torque Nm
M
μ,L
Friction torque of the load Nm
n Speed of application rpm
P Power of the application W
α Angular acceleration rad/s
2
ω Angular velocity rad/s
Symbol Description
J
L
Moment of inertia of load
• Has an impact on the dynamic torque!
• Value can be entered directly or calculated using a inertia calculator.
Inertial calculator
( 407)
Symbol Description
M
μ,L
Friction torque that counteracts the direction of movement.
Symbol Description
n Speed required at the output shaft.
• Please note: The speed of the application, not the rated speed of the motor is meant!
• Value is entered in the Motion dimensioning step.
Symbol Description
m
L
Required torque at the output shaft
• Value is entered in the Motion dimensioning step.
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