Lenze DSD - Manual (Page 311)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
311
11 Drive Dimensioning
11.1 Preselection of the geared motor
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11.1.3 Average daily operating time
The Continuous rated curve of the gearbox is influenced by the average daily operating time.
11.1.4 Additional drive element (K)
Symbol Description
OT Daily operating time
• The operating time is required to determine the correction factors of the thermal speed for
geared motors.
Symbol Description
Type The following designs are available:
• Flat belt
• V-belt
• Chain
• Dedicated gearbox
• Gear wheel
• Toothed belt

Note!
Whereas toothed belts, chain, and gears have a positive locking and thus present a low
tendency for slip, in the case of a V-belt/flat belt there is a speed difference between the
drive end and the output end (slip).
• This speed difference in general is low and is not considered by the DSD.

Stop!
If belt drives/chain drives are used, the radial stress of the Lenze gearbox by the preten-
sion is not checked in the DSD. Carry this check out manually!