Regenerative Braking - Siemens SINAMICS G120 Operating Instructions Manual
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5.10.1.3
Regenerative braking
Regenerative braking applications
Regenerative braking is typically used in applications in which braking energy is generated
either frequently or for longer periods of time, e.g. centrifuges, unwinders or cranes.
Operating characteristics of regenerative braking
The inverter can feed back up to 100% of its power (for HO base load) into the line supply.
Parameterizing regenerative braking
Table 5- 54
Parameter
s
Energy recovery option for V/f control (P1300 < 20)
P640
Energy recovery option for vector control (P1300 ≥ 20)
P1531
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
Parameters to set regenerative braking
Description
Motor overload factor
Setting the maximum regenerative power. If the regenerative power exceeds this value
for longer than 5 s, the inverter shuts down with fault message F0028.
Regenerative power limit
If the regenerative power reaches this value, the motor can no longer follow its speed
setpoint, i.e. the motor speed increases. If the regenerative power exceeds this value,
the inverter shuts down with fault message F0028.
Functions
5.10 Technological functions
135
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