Lenze DSD - Manual (Page 78)

7 Applications
7.3 Belt drive, rotating
78
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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[7-23] Equation 14: Constant torque loss
The torque loss depends on the torque M
D
which is to be transmitted, so that the resulting torque
M
App
defining the power of the application is calculated via the following equation.
• The deterioration of the efficiency within operation in generator mode (backward efficiency) is
considered during this calculation.
[7-24] Equation 15: Required torque of the application

Tip!
Further equations to complete the calculations required for an application can be found in
the chapter " Basic calculations ". ( 68)
M
th
1
η
Blt
--------- 1 –
 
  max M
D
( ) ⋅ =
M
App
M
D
ω
ω
------- M
th
⋅ +
 
  J
Cog
α ⋅ + =