Sensor Module External Sme20; Description; Safety Information - Siemens SINAMICS S120 Combi Equipment 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-pole round connector for the encoder to the 12-
pole circular connector of the SME20 using adapter cable 6FX 8002-2CA88-.....
● KTY/PTC temperature sensors can be used for evaluation of 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 Information

Danger to life due to 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.
• Only use temperature sensors that fully comply with the specifications of the safety
• If safe electrical separation cannot be guaranteed (for linear motors or third-party
SINAMICS S120 Combi
Manual, (GH9), 07/2016, 6SL3097-4AV00-0BP5
WARNING
isolation.
motors, for example), use a Sensor Module External (SME120 or SME125) or Terminal
Module TM120.
Encoder system connection
10.3 Sensor Module External SME20
263