Electrical installation 125
AI1 and AI2 as Pt100, Pt1000, Ni1000, KTY83 and KTY84 sensor inputs (X1)
One, two or three Pt100 sensors; one, two or three Pt1000 sensors; or one Ni1000,
KTY83 or KTY84 sensor for motor temperature measurement can be connected
between an analog input and output as shown below. Do not connect both ends of
the cable shields directly to ground. If a capacitor cannot be used at one end, leave
that end of the shield unconnected.
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.
Safe torque off (X4)
For the drive to start, both connections (+24 V DC to IN1 and +24 V DC to IN2) must
be closed. By default, the terminal block has jumpers to close the circuit. Remove the
jumpers before connecting an external Safe torque off circuitry to the drive. See
chapter Safe torque off function on page 231.
Note: Only 24 V DC can be used for STO. Only PNP input configuration can be used.
1…3 × (Pt100 or Pt1000) or
AIn
AGND
AOn
AGND
1)
2)
T
TT
1 × (Ni1000 or KTY83 or KTY84)
1) Select the input type to voltage for analog input AI1 or AI2 with parameters. Set the
appropriate analog input unit to V (volt) in parameter group 12 Standard AI.
2) Select the excitation mode in parameter group 13 Standard AO.
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