Sensor Modules - Siemens Sinamics S120 Function Manual

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Function of the bimetallic NC contact

A bimetallic switch at a certain nominal response temperature actuates a switch. The tripping

resistance is <100 Ohm. Not every sensor input is bimetal NC contact-capable.

● p0600 = 1 activates the motor temperature sensing using sensor 1

● p0601 = 4 sets the bimetallic NC contact temperature sensor type

Temperature sensor type for multiple temperature channels

If you use several temperature channels, set p0601 = 10. Then the sensors are

interconnected via BICO

Sensor Modules

Sensor Modules are needed when additional temperature sensors are to be connected via

DRIVE-CLiQ. Various Sensor Modules are available to do this:

● Sensor Module Cabinet-Mounted (SMC) for rail mounting in control cabinets

● Sensor Module External (SME) in degree of protection IP67, installed close to the motor

PTC and KTY84 temperature sensors – and in some cases – bimetallic NC contacts, can be

connected to the Sensor Modules.

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 and SMC30 differ regarding the sensor

interfaces. They have the same function for detecting the motor temperature. An SMC30

offers to alternative 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.

Drive functions

Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2

Temperature sensor connection

Temperature sensor type

A temperature sensor cannot be connected

KTY84/PTC/bimetallic NC contact

Monitoring and protective functions

8.5 Thermal motor protection

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