ABB ACS880-04FXT, Hardware Manual

Page: 112 / 196

T
PTC
DI6
+24VD
WARNING!
As the inputs pictured above are not insulated according to IEC 60664, the
connection of the motor temperature sensor requires double or reinforced insulation
between motor live parts and the sensor. If the assembly does not fulfill the
requirement, the I/O board terminals must be protected against contact and must
not be connected to other equipment or the temperature sensor must be isolated
from the I/O terminals.
AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input
Three Pt100/Pt1000 sensors or one KTY84 sensor for motor temperature measurement
can be connected between an analog input and output as shown below. (Alternatively, you
can connect the KTY to an FIO-11 or FAIO-01 analog I/O extension module or FEN-xx
encoder interface module.) At the sensor end of the cable, leave the shields unconnected
or ground them indirectly via a high-frequency capacitor with a few nanofarads, for example
3.3 nF / 630 V. The shield can also be grounded directly at both ends if they are in the same
ground line with no significant voltage drop between the end points.
...
AI1+
AI1-
AO1
AGND
2
1
3
T T
T
1)
Set the input type to voltage with the appropriate switch or jumper on the inverter control
unit. Make the corresponding setting in the inverter unit control program in parameter group
12 Standard AI .
2) Select the excitation mode in parameter group 13 Standard AO of inverter unit control
program.
112 Control unit of the drive