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Description
3.4 Design
3.4.4.2
Technical features of temperature sensors
Technical features of PTC temperature sensors
Every PTC temperature has a "quasi-switching" characteristic. The resistance suddenly increases
in the vicinity of the response threshold (nominal response temperature ϑ
PTC temperature sensors have a low thermal capacity - and have good thermal contact
with the motor winding. As a consequence, the temperature sensors and the system quickly
respond to inadmissibly high motor winding temperatures.
Table 3-10
Name
Type
Response threshold
(nominal response temperature ϑ
PTC resistance R (20 °C) at the PTC triplet
46
Technical data of the PTC temperature sensors
)
NAT
Description
PTC triplet acc. to DIN 44082
Individual PTC temperature sensor according to
DIN 44081
120 °C ± 5 K
See the characteristic
if -20 °C < T < ϑ
-20 K
NAT
R ≤ 3 x 250 Ω
R ≤ 750 Ω
Naturally-Cooled 1FN3 Linear Motors
Operating Instructions, 06/2023, A5E52220465B AB
).
NAT
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