ABB ACS880 Firmware Manual page 63

The figure below shows typical PTC sensor resistance values as a function of
temperature.
Ohm
4000
1330
550
100
For detailed wiring information, refer to the Hardware Manual of the drive, or the User
manual of the FEN-xx encoder interface.
Temperature monitoring using Pt100 sensors
1...3 Pt100 sensors can be connected in series to an analog input and an analog
output.
The analog output feeds a constant excitation current of 9.1 mA through the sensor.
The sensor resistance increases as the motor temperature rises, as does the voltage
over the sensor. The temperature measurement function reads the voltage through
the analog input and converts it into degrees Celsius.
It is possible to adjust the motor temperature supervision limits and select how the
drive reacts when overtemperature is detected.
For the wiring of the sensor, refer to the Hardware Manual of the drive.
Temperature monitoring using KTY84 sensors
One KTY84 sensor can be connected to an analog input and an analog output on the
control unit.
The analog output feeds a constant excitation current of 2.0 mA through the sensor.
The sensor resistance increases as the motor temperature rises, as does the voltage
over the sensor. The temperature measurement function reads the voltage through
the analog input and converts it into degrees Celsius.
FEN-xx encoder interfaces (optional) also have a connection for one KTY84 sensor.
T
Program features 63