ABB ACS580 Firmware Manual page 130

126 Program features
Temperature monitoring using KTY83 sensors
One KTY83 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 1.0 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.
The figure and table below show typical KTY83 sensor resistance values as a
function of the motor operating temperature.
Scaling
KTY84
°C ohm
90 936
110 1063
130 1197
150 1340
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, see chapter Electrical installation, AI1 and AI2 as Pt100,
Pt1000, Ni1000, KTY83 and KTY84 sensor inputs (X1) in the Hardware manual of the
drive.
Settings
• Menu - Primary settings - Motor - Thermal protection estimated,
Menu - Primary settings - Motor - Thermal protection measured
• Parameter group
3000
KTY83
2000
ohm
1569
1774
1993
2225
1000
35 Motor thermal protection
Ohm
KTY83
0
-100 0 100
(page 247).
KTY84
o
T C
200 300