Siemens SINAMICS S120 Manual page 230

Control Units, Control Unit Adapters and operating components
7.3 Control Unit CU310-2 PN (PROFINET)
The maximum cable length that can be connected is 30 m.
Fail-safe digital inputs
An F-DI consists of a digital input and a second digital input to which the cathode of the
optocoupler is connected.
Temperature sensor input
NOTICE
Damage to motor in the event of incorrectly connected KTY temperature sensor
If a KTY temperature sensor is connected with incorrect polarity, it is not possible to detect
when the motor overheats. Overheating can cause damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
Further information regarding the temperature sensor may be found in the SINAMICS S120
Commissioning Manual, "Temperature sensors for SINAMICS components" section.
The maximum length of the temperature sensor cable is 300 m. The cables must be
shielded. For cable lengths >100 m, cables with a cross-section of ≥1 mm
EP terminal
The pulse inhibit function (EP) is only available when Integrated Basic Functions are
enabled.
230
must be used.
2
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
AC Drive