Sensor Module External Sme20; Description; Safety Instructions For Sme20 - Siemens SINAMICS S120 Combi Manual

10.3

Sensor Module External SME20

10.3.1

Description

Direct encoder systems outside the cabinet can be connected to the Sensor Module External
SME20. The SME20 evaluates these encoder systems and converts the calculated values to
DRIVE-CLiQ.
Incremental direct encoder systems with SIN/COS (1 Vpp) and reference signal can be
connected.
It is possible to connect a motor with a 17-pin round connector for the encoder to the 12-pin
round connector of the SME20 using adapter cable 6FX 8002-2CA88-.....
● KTY, PT1000 and PTC temperature sensors can be used to evaluate the motor
temperature.
● The Sensor Module is only suitable for motors without absolute track signals (C/D track):
– Induction motors (e.g. 1PH)
– Synchronous motors with pole position identification (e.g. 1FN, 1FW, 1FE)
Neither motor nor encoder data are saved in the SME20.
10.3.2

Safety instructions for SME20

Electric shock in the event of voltage flashovers at the temperature sensor
Voltage flashovers to the signal electronics can occur in motors without safe electrical
separation of the temperature sensors.
• Only use temperature sensors that fully comply with the specifications for protective
• If safe electrical separation cannot be guaranteed (e.g. for linear motors or third-party
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7
WARNING
separation.
motors), use a Sensor Module External (SME120 or SME125) or the TM120 Terminal
Module.
Encoder system connection
10.3 Sensor Module External SME20
249