Sensor Module Cabinet-Mounted; Sensor Module External; Sensor Module Sme 20/25 - Siemens SINAMICS S120 Function Manual

8.5.3.1

Sensor Module Cabinet-Mounted

A Sensor Module Cabinet-Mounted (SMCx0) evaluates the sensor signals. The results are
transferred to the drive for further processing via DRIVE-CLiQ. The SMCx0 is intended for
operation in a control cabinet. SMC10, SMC20, SMC30 and SMC40 differ regarding the
encoder interfaces. They have the same function for detecting the motor temperature.
Alternatively an SMC30 offers two encoder connections. The encoder can either be
connected at interface X520, a 15 pin Sub-D connector – or at interface X521/X531, via
terminal strip.
A SMC40 only supports pure digital encoders without incremental signals. These are only
encoders with the order designation EnDat 22. In contrast to the other Sensor Modules, the
SMC40 is a double SMC. Wiring is via two DRIVE-CLiQ cables. Motor temperature
monitoring is not possible with the SMC40.
Note
The SMC40 can only be fully configured when an associated EnDat 2.2 encoder is
connected. Without a connected encoder, it is not possible to integrate the SMC40 into the
topology.
Note
No safety functions with SMC40
No safety functions are supported with firmware V4.5.
8.5.3.2

Sensor Module External

A Sensor Module External (SME) is required if the sensor interface is to be installed close to
the motor sensor outside a control cabinet. The SME has an IP67 degree of protection.
8.5.3.3

Sensor Module SME 20/25

The SME20 and SME25 evaluate encoder and sensor data. The calculated values are
transferred to the Control Unit via DRIVE-CLiQ. SME20 and SME25 differ regarding the
encoder interface.
A temperature sensor cannot be connected to the SME25 to sense the motor temperature.
Instead, use an SME125.
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Monitoring and protective functions
8.5 Thermal motor protection
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