Siemens SINAMICS G120 Operating Instructions Manual page 284

Advanced commissioning
6.7 Application-specific functions
Braking with regenerative feedback into the line supply
The inverter feeds electrical energy back into the line supply
(energy recovery).
Advantages:
•
not completely converted into heat, but regenerated into the
line supply; is suitable for all applications; continuous
regenerative operation is possible - e.g. when lowering a
suspended load
Disadvantage:
•
Which Power Module permits which braking technique?
Electrical braking methods
DC braking, compound braking
Dynamic braking
Braking with regenerative feedback into the line supply
284
Constant braking torque; the braking energy is
Does not function for a power failure
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Power Modules that can be used
PM240, PM340
PM240, PM340
PM250, PM260
Converter with the CU240B-2 and CU240E-2 Control Units