Switching Energy / Switching Frequency - Wittur servogearless WSG-S3.4 Instructions De Service

Technical specifications
3.4

Switching energy / switching frequency

Fig. 3 Switching energy as a function of the switching frequency
A A
The permissible switching frequency S
set switching frequency S
With high speeds of rotation and switching energy, the wear increases strongly, because very high temper-
atures occur at the friction surfaces for a short time.
INTORQ | BA 14.0196 | 04/2016
Switching energy Q [J]
S hue
–
S = ------------------------------- -
hmax
Q R
 
ln 1  -------- - 
–
Q E
 
, the permissible amount of heat is Q
h
Switching frequency S
B
Q smax
depends on the amount of heat Q
hmax
Smax
[1/h]
h
– S hue
 
------------------ -
 
S h
 
= Q E 1 e  – 
 
 
 
(refer to Figure 3). At a pre-
R
.
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