Siemens SINAMICS S120 Combi - Connection Example

Encoder system connection
10.3 Sensor Module External SME20
SINAMICS S120 Combi
252 Manual, 11/2017, 6SL3097-4AV00-0BP7
NOTICE
Damage to motor in the event of incorrectly connected KTY temperature sensor
If a KTY temperature sensor is connected with incorrect polarity, then 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.
WARNING
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
separation.
• If safe electrical separation cannot be guaranteed (for linear motors or third-party
motors, for example), use a Sensor Module External (SME120 or SME125) or Terminal
Module TM120.
10.3.4
Connection example
Figure 10-14 Connection of a direct encoder system via a Sensor Module External (SME)