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Siemens D 31 · 2015
2
Highlights
Energy efficiency
■
Overview
Reactive power compensation
The use of SINAMICS inverters with Active Line Modules reduces
the capacitive and/or inductive reactive power in the machine. It
is then possible to dispense with costly reactive power compen-
sation systems.
Energy buffering
With dynamic reversing operations in single-axis and multi-axis
systems, the kinetic energy available in the system is reused.
Use of SINAMICS inverters results in energy equalization across
the common DC link.
Energy usage counter/Energy saving counter
Actual energy usage can be displayed during operation. Fur-
thermore, an energy saving counter can be installed to indicate
the cumulative energy savings during machine operation as
compared to a fixed-speed application.
Regenerative feedback
In conventional drive systems, the energy produced during
braking is converted to heat using braking resistors.
SINAMICS G and SINAMICS S inverters with regenerative
feedback capability need no braking resistor, and supply the
resulting braking energy back into the line.
DC link coupling with SINAMICS V20
Applications with two SINAMICS V20 inverters with the same
power rating can share a common DC link in order to reuse
regenerated energy.
Overview of energy-saving functions for SINAMICS drives
■
More information
Further information about energy efficiency including references
from industrial product can be found at
/energy-efficiency
Further information about SINAMICS V20 can be found at
/sinamics-v20
Energy-saving
function
SINAMICS V
SINAMICS G
SINAMICS S
V20
G110
G110D
G120C
G120P
G120
G110M
G120D
S110
S120
ECO mode
–
–
Hibernation
mode
–
–
–
with
CU230P-2
Control Unit
–
–
–
–
Bypass mode
–
–
–
–
with
CU230P-2
Control Unit
–
–
–
Cascading
–
–
–
with
CU230P-2
Control Unit
–
–
–
–
Energy
balancing
–
–
–
–
–
–
–
–
for multi-axis
drives only
Reactive power
compensation
–
–
–
–
–
–
–
–
–
with Active
Line Module
Energy
buffering
–
–
–
–
–
–
–
–
–
for multi-axis
drives only
Energy usage
counter/Energy
saving counter
–
–
Regenerative
feedback
–
–
–
–
–
with PM250
Power
Module
–
–
with Smart
Line Module
or Active
Line Module
Communication protocol and profile
PROFINET
–
–
–
not for
CU240B-2
Control Unit
• PROFIenergy
–
–
–
not for
CU240B-2
Control Unit
–
© Siemens AG 2014