Dc Link Components; Blocksize; Braking Resistors; Description - Siemens SINAMICS S120 Equipment Manual

DC link components

6.1

Blocksize

6.1.1

Braking resistors

6.1.1.1

Description

The PM240-2 Power Modules cannot feed back regenerated energy into the line supply. For
regenerative operation, e.g. the braking of a rotating mass, a braking resistor must be
connected to convert the resulting energy into heat.
A thermostatic switch monitors the braking resistor for overtemperature and issues a signal
on an isolated contact if the limit value is exceeded.
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
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