Connection Example - Siemens SINAMICS S120 Manual

Encoder system connection
9.8 Sensor Module External SME20
Electric shock when the motor temperature sensor insulation fails
When connecting temperature sensors, which have no safe protective separation with respect
to the motor power circuit, then arcing to the signal electronics can occur.
• Use motors whose temperature sensors have safe electrical separation.
• Use only connecting cables and connectors with safe electrical separation between the
• If safe electrical separation cannot be guaranteed (for linear motors or third-party motors,
9.8.3

Connection example

Figure 9-29
278
WARNING
wires of the temperature sensor and the wires of the power circuit.
for example), use a Sensor Module External (SME120 or SME125) or Terminal Module
TM120.
Connection of a direct encoder system via a Sensor Module External (SME)
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2