Lenze DSD - Manual (Page 344)

11 Drive Dimensioning
11.5 Selection of an additional drive element
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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
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11.5 Selection of an additional drive element
The selection of the general ratio defines the final parameters. For the different gearbox types, dif-
ferent parameters are required.
11.5.1 Type identifier
11.5.2 Ratio
11.5.3 Efficiency
11.5.4 Moment of inertia

Note!
The DSD does not check the load of the additional drive element!
This check is to be effected manually, if required.
Symbol Description
– Designation for the additional drive element.
• Information is optional.
Symbol Description
i
act,K
Actually selected ratio of the additional drive element.
• Value can be entered directly or calculated using the gearbox calculator.
Gearbox calculator ( 410)
Symbol Description
η
K
Efficiency of the additional drive element with regard to the rated variable (rated torque; rated
speed)
• The value can be entered directly or selected from the table of values.
Value table for efficiencies
Symbol Description
J
out,K
Mass moment of inertia
• Relative to the Output end of the gearbox, including further moments of inertia (e. g. of
clutches).
• If only the moment of inertia J
in,K
for the Drive end is available, the following applies:
• Value can be entered directly or calculated using the inertial calculator.
Inertial calculator ( 407)
J
out K ,
i
act,K
2
J
in,K
⋅ =