5
Electrical installation
Options
Operating Instructions – AC Motors
105
5.14.5
Temperature detection /PK (PT1000)
NOTICE
Excessive self-heating of the temperature sensor can damage the insulation of the
temperature detection as well as the motor winding.
The drive system might be damaged.
•
Avoid currents > 3 mA in the circuit of the PT1000.
•
Observe the correct connection of the PT1000 to ensure correct evaluation of the
temperature detection.
The characteristic curve in the following figure shows the resistance curve subject to
the motor temperature.
0
500
1000
1500
2000
2500
3000
-100
-50
0
50
100
150
200
250
T [°C]
R [Ω]
17535480203
Technical Data
PT1000
Connection
Black/red
Resistance at 20 – 25 °C per PT1000
1077 Ω < R < 1098 Ω
Test current
< 3 mA
25851535/EN – 02/2019
Содержание DR 315 Series
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