ABB ACS850 series, Firmware Manual

Page: 47 / 260

Program features 47
The figure below shows typical PTC sensor resistance values as a function of the
motor operating temperature.
The figure below shows typical KTY84 sensor resistance values as a function of the
motor operating temperature.
It is possible to adjust the motor temperature supervision limits and select how the
drive reacts when overtemperature is detected.
100
550
1330
4000
Ohm
T
Temperature PTC resistance
Normal 0…1.5 kohm
Excessive > 4 kohm
1000
2000
3000
ohm
T ( ° C)
KTY84 scaling
90 °C = 936 ohm
110 °C = 1063 ohm
130 °C = 1197 ohm
150 °C = 1340 ohm
-100
0
0 100 200 300