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10  Engineering Information 
Issue 03/01 
 
MICROMASTER 411 & COMBIMASTER 411    Operating Instructions  
134 
6SE6400-5CA00-0BP0  
10.3.3 Compound 
Braking 
When Compound braking is used, most of the energy is dissipated in the motor 
instead of coming back into the DC link. This has the advantage that the braking 
performance of the inverter can be increased, without tripping the inverter and 
without the use of a braking resistor. 
Compound braking combines the braking power of DC braking with the control 
offered by a ramp down. When using Compound braking, the ramp-down time is 
defined and the level of current to be used in Compound Braking is defined using 
P1236. 
 
Figure 10-15  Compound Braking