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78 Control units of the drive
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, protect the I/O board terminals against contact and do not connected
them to other equipment, or isolate the temperature sensor from the I/O terminals.
Make sure that the voltage does not exceed the maximum allowed voltage over
the PTC sensor.
AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input
￭
Sensors for motor temperature measurement can be connected between an analog input
and output, an example connection is 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.
1
T
1
One, two or three Pt100, Pt1000 or PTC sensors; or one KTY84 sensor
2
Set the input type to voltage with the appropriate switch or jumper on the control unit. Make the corres-
ponding setting in the control program in parameter group 12 Standard AI.
3
Select the excitation mode in parameter group 13 Standard AO.
WARNING!
As the inputs pictured above are not insulated according to IEC/EN 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, protect the I/O board terminals against contact and do not connected
them to other equipment, or isolate the temperature sensor from the I/O terminals.
Make sure that the current does not exceed the maximum allowed current through
the Pt100/Pt1000 sensor.
DIIL input
￭
The DIIL input is used for the connection of safety circuits. The input is parametrized to stop
the unit when the input signal is lost.
Note: This input is NOT SIL or PL certified.
T
T
AI1+
2
AI1-
...
AO1
3
AGND
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