Siemens SINAMICS S120 System Manual page 109

Braking resistor with thermostatic switch connected to a Braking Module Booksize Compact
Figure 6-8 Connection example for Braking Module Booksize Compact and braking resistor with a thermostatic switch
Note
The digital inputs (DI) are isolated and are referenced to M_DI (X21.5 and X21.6).
The reference point of the digital outputs (DO) is the ground GND of the 24 V supply.
Information on how to parameterize the digital inputs or digital outputs, see the SINAMICS
S120/S150 List Manual.
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
Braking Modules
6.2 Braking Module Booksize Compact
109