Motor components
6.1 Thermal motor protection
Synchronous Motors 1FK7
70 Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
Caution
The integrated temperature sensor protects the synchronous against an overload condition
Shaft height 11 to 48 to 2 • I
0 (60 K)
and speed <> 0
From shaft height 63 up to 4∙ I
0 (60 K)
and speed <> 0
For load applications that are critical from a thermal perspective - e.g. overload when
the motor is stationary or an overload of M
max
longer than 4 s, adequate protection is no
longer available.
˽
[
r&@
P$
I
'
R[k
Ω
@
X
Figure 6-1 Resistance characteristic of the KTY 84 as a function of the temperature
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