Example: Parallel Connection With Tm120 - Siemens SINUMERIK 840D sl Commissioning Manual

6.1.2

Example: Parallel connection with TM120

Topology
Application: Four motors connected in parallel
M1 ... M4
SMx
ALM
DMM
SMM
TM120
The shown topology requires four KTY sensors and four PTC sensors:
● Each primary section has one KTY sensor (Temp-F) and three series-connected PTC
sensors (Temp-S).
Two TM120s are required:
● A TM120 is interconnected automatically in series between the Motor Module and the SMx
Sensor Module.
● A TM120 is directly inserted into a Line Module: This requires a manual interconnection by
the commissioning engineer.
CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA
Motor 1 ... motor 4
One KTY and three PTC in series are connected for each motor.
Sensor Module (motor encoder)
Active Line Module
Double Motor Module
Single Motor Module
Terminal Module
Commissioning NC-controlled drives
6.1 Configuration examples
105