Siemens SINAMICS G120 Operating Instructions Manual page 312

Advanced commissioning
6.25 Electrically braking the motor
Braking with energy recovery into the line supply
The inverter feeds electrical energy back into the line supply (en‐
ergy recovery).
Advantages: Constant braking torque; the braking energy is
●
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: Does not function for a power failure
●
Which Power Module permits which braking method?
Electrical braking methods
DC braking
Compound braking
Dynamic braking
Braking with energy recovery into the line supply
312
Power Modules that can be used
PM230, PM240P-2, PM240-2, PM330
PM240P‑2, PM240‑2
PM240-2, PM330
PM250
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE