Siemens SINAMICS S120 Function Manual page 609

Hide thumbs Also See for SINAMICS S120:

Table of Contents

Function of the PTC

The temperature sensor is connected to the Sensor Module at the appropriate terminals (-

Temp) and (+Temp) (see the relevant chapter in the SINAMICS S120 Control Units and

Supplementary System Components Manual). The threshold value for switching over to an

alarm or fault is 1650 Ω.

A PTC usually has a strongly non-linear characteristic, and as a consequence is used just like

a switch. When the typical rated response temperature is exceeded, then the resistance

changes abruptly (step function). The tripping resistance is ≥1650 Ohm.

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

● p0601 = 1 sets temperature sensor type "PTC"

Function of the KTY

The temperature sensor is connected to the Sensor Module at the appropriate terminals (-

Temp) and (+Temp) (see the relevant chapter in the SINAMICS S120 Control Units and

Supplementary System Components Manual). A KTY84/1C130 temperature sensor has an

almost linear characteristic and is therefore also suitable for continuously measuring and

displaying the motor temperature.

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

● p0601 = 2 sets temperature sensor type "KTY"

Function of the PT100/PT1000

A PT100 or PT1000 is in principle a PTC with a very linear characteristic, and is suitable for

continuous and exact temperature measurements. Not every sensor input is PT100/PT1000-

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

● p0601 = 5 sets temperature sensor type "PT100"

● p0601 = 6 sets temperature sensor type "PT1000"

Function of the bimetallic NC contact

A bimetallic NC contact 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 temperature sensor type "Bimetallic NC contact"

Temperature sensor type for multiple temperature channels

Set p0601 = 10 if you wish to use several temperature channels. The sensors are then

interconnected via BICO

Drive functions

Function Manual, 06/2019, 6SL3097-5AB00-0BP2

Monitoring functions and protective functions

10.2 Thermal motor protection