User Manual

Functions

5.5 Functions of the inputs

SIRIUS 3RW30 / 3RW40

44 Manual, 10/2010, 535199502000 DS 03

For recommended circuits, e.g. control by means of pushbuttons, contactor contacts, or a

PLC, refer to chapter Typical circuit diagrams (Page 175).

5.5.3 Thermistor input / connection on 3RW40 2 to 3RW40 4

24 V AC/DC rated control voltage

After removing the copper jumper between T11/21 and T22, you can connect and evaluate

either a Klixon thermistor integrated in the motor winding (at terminal T11/T21-T22) or a type

A PTC (at terminal T11/T21-T12).

T11/T21 T12 T22

T22T12

T11/T21

Klixon Type A PTC