86 Control unitAI1 and AI2 as Pt100, Pt1000, Ni1000, KTY83 and KTY84 sensor inputs(ANALOG IN/OUT)One, two or three Pt100 sensors; one, two or three Pt1000 sensors; or one Ni1000, KTY83or KTY84 sensor for motor temperature measurement can be connected between ananalog input and output as shown below. Do not connect both ends of the cable shieldsdirectly to ground. If a capacitor cannot be used at one end, leave that end of the shieldunconnected.WARNING! As the inputs pictured above are not insulated according toIEC 60664, the connection of the motor temperature sensor requires double orreinforced insulation between motor live parts and the sensor. If the assemblydoes not fulfill the requirement, the I/O board terminals must be protected against contactand must not be connected to other equipment or the temperature sensor must be isolatedfrom the I/O terminals.Safe torque off (STO)For the drive to start, both connections (+24 V DC to IN1 and +24 V DC to IN2) must beclosed. 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 also chapter Safe torque off function on page 137.Note: Only 24 V DC can be used for STO. Only PNP input configuration can be used.1. Set the input type to voltage with switch S1 for analog input AI1or with S2 for analog input AI2. Set theappropriate analog input unit to V (volt) in parameter group 12 Standard AI.2. Select the excitation mode in parameter group 13 Standard AO.XAIXAOAInAGNDAOnAGND1)2)TTT1…3 × (Pt100 or Pt100) or1 × (Ni1000 or KTY83 or KTY84)
