Efficient Networks Siemens Sinamics S120 - Manual (Page 231)

Function modules
7.5 Braking Module
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
231
7.5 Braking Module
7.5.1 "Braking Module" function module
Features
● Braking the motor without any possibility of regenerating into the line supply (e.g. power
failure)
● Fast DC link discharge (booksize design)
● The Braking Module terminals are controlled via the drive object infeed (booksize and
chassis designs)
● Controlling up to 8 Braking Modules in a parallel circuit configuration
● Acknowledging faults at the Braking Module
Description
The "Braking Module" function module can be activated in the infeed drive object. The
appropriate binectors must be interconnected via digital inputs/outputs (e.g.: Control Unit,
TM31 or TB30) with the Braking Module.
In order to obtain the maximum power of a Braking Module, the Vdc_max control must be
disabled.
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Figure 7-5 Example of controlling two Booksize Braking Modules