Siemens 6SL3210-1SB11-0UA0 [199/318] Description

Siemens 6SL3210-1SE31-5UA0 [199/318] Description
Supplementary system components and encoder system integration
7.3 Sensor Module Cabinet-Mounted SMC20
Manual
Manual, 01/2011, 6SL3097-4AC10-0BP2
199
7.3 Sensor Module Cabinet-Mounted SMC20
7.3.1 Description
The Sensor Module Cabinet-Mounted SMC20 evaluates encoder signals and transmits the
speed, actual position value, rotor position and, if necessary, the motor temperature and
reference point via DRIVE-CLiQ to the Control Unit.
The SMC20 is used to evaluate encoder signals from incremental encoders with SIN/COS
(1 Vpp) or absolute encoders with EnDat 2.1 or SSI.
7.3.2 Safety information
WARNING
The ventilation spaces of 50 mm above and below the component must be observed.
NOTICE
Only one encoder system may be connected per Sensor Module.
Note
There must be no electrical connection between the encoder system housing and the signal
cables, or the encoder system electronics. If this is not carefully observed, under certain
circumstances the system will not be able to reach the required interference immunity level
(there is then a danger of equalization currents flowing through the electronics ground).
CAUTION
Connecting cables to temperature sensors must always be installed with shielding. The
cable shield must be connected to the ground potential at both ends over a large surface
area. Temperature sensor cables that are routed together with the motor cable must be
twisted in pairs and shielded separately.

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