Siemens SINAMICS S120 Equipment Manual page 319

NOTICE
Damage to the encoder due to incorrect supply voltage
The encoder supply can be parameterized to 5 V or 24 V. Incorrect parameter assignment
can cause damage to the encoder.
• Select the appropriate supply voltage.
NOTICE
Damage to motor due to 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.
Information for assigning parameters to the KTY temperature sensor can be found in the
SINAMICS S120 Function Manual "Drive Functions" in the Chapter "Monitoring and
protection functions/thermal motor protection".
Electric shock in the event of voltage flashovers at the temperature sensor
Voltage flashovers in the signal electronics can occur in motors without safe electrical
separation of the temperature sensors.
• Use temperature sensors that comply with the specifications relating to protective
• If safe electrical separation cannot be guaranteed (e.g. for linear motors or third-party
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
Supplementary system components and encoder system integration
WARNING
separation.
motors), use a SME120 or SME125 Sensor Module External or the TM120 Terminal
Module.
9.1 Sensor Modules
317