Download Operating Instructions - SEW

5
Electrical Installation
Motor protection
Temperature sensor KTY
• It is essential to observe the correct connection of the KTY to ensure correct
evaluation of the temperature sensor.
•
Avoid currents > 4 mA in the circuit of the KTY since high self-heating of the temperature sensor can damage its insulation and the motor winding.
The characteristic curve in the following figure shows the resistance curve with a
measuring current of 2 mA.
R [Ω]
2000
1800
1600
1400
1200
1000
800
600
400
200
0
-40
-20
0
20
40
60
80
100
120
140
160
180
200
ϑ [°C]
50927AXX
Observe the polarity!
32
Operating Instructions – CMS Electric Cylinders