Siemens SINAMICS DCM Operating Instructions Manual page 181

Temperature sensor connection
For the evaluation of the temperature sensor, see function diagram 8030 in the SINAMICS
DCM List Manual.
NOTICE
Motor damage due to incorrectly connected KTY temperature sensor
A KTY temperature sensor connected with incorrect polarity cannot detect if the motor
overheats. Overheating may result in damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
Electric shock in the event of voltage flashovers on the temperature sensor cable
Flashover to the signal electronics can occur on motors without safe electrical separation of
the temperature sensors.
• Only use temperature sensors that satisfy the specifications for electrical separation
Note
The maximum length of the temperature sensor cable is 100 m. The cables must be
shielded.
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
WARNING
according to IEC 61800-5-1.
Additional system components
7.3 Sensor Module Cabinet-Mounted SMC30
179