Connection Examples - Siemens SINAMICS S120 System Manual

Braking Modules
6.2 Braking Module Booksize Compact
6.2.4

Connection examples

Braking resistor without thermostatic switch connected to a Braking Module Booksize Compact
Figure 6-7 Connection example for Braking Module Booksize Compact and braking resistor without 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.
It is not permissible that the connections for the temperature switches (X22.1 and X22.2) are
used/assigned for "braking resistor without a thermostatic switch" operation. Otherwise,
malfunctions occur.
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System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
High Frequency Drive