Energy-efficient Drives

SINAMICS frequency converters intelligently save energy

Take advantage of your energy savings potential and optimize your energy consumption – with the intelligent functions of SINAMICS frequency inverters. Depending on the application, you can efficiently regulate the energy consumption for individual demands by aligning the motor speed. Energy savings of up to 70% are possible with fan, pump and compressor drives. Energy recovery is also a popular Option, for example lifting applications. Our frequency converter portfolio is the most comprehensive offering on the market and the first choice for energy-efficient drives – both in the low and the medium voltage range.

Function

Description

SINAMICS

ECO mode

ECO mode

In ECO mode the operating point of the motor in the partial-load range is automatically adjusted and optimized. This helps to reduce motor losses.

S110, S120, S150, G120, G120D, G120C, G120P, G130, G150

PROFIenergy

PROFIenergy

Provide energy-related data for the system components to create transparency for the
energy management; energy saving by specifically shutting down the plant/system and/or sections of it

S120, S150, G130, G150, G120P, G120C, G120D, G120

Hibernation mode

Hibernation mode

If variable-speed drives are only deployed temporarily, they can be switched to hibernation mode.

G120, G120P

Bypass mode

Bypass mode

In Bypass mode it is possible to "bypass" the inverter electrically as soon as the motor frequently operates close to its rated speed. This helps to avoid inverter losses and increase overall efficiency.

S120, G120, G120P, G130, G150, G180

Cascading

Cascading

If the entire power demand in applications is distributed among several motors, a drive system can be made more energy-efficient by phased connection and disconnection via partially or fully controlled cascades in combination with inverters and motor starters.

S120, S150, G120, G120P, G130, G150, G180

Energy balancing

Energy balancing

With coupled drives, energy is exchanged via the shared DC link to minimize power losses in the system.

S120, S150

Reactive power compensation

Reactive power compensation

The use of SINAMICS inverters with Active Line Modules reduces the capacitive and/or inductive reactive power in the machine. This dispenses with costly reactive power compensation systems.

S120, S150, G180

Kinetic energy buffer

Kinetic energy buffer

The kinetic energy available in the system shall be reused for dynamic reversing processes performed on single and multi-axis systems. A motor that is connected to the shared dc link serves as kinetic energy buffer.

S120, S150

Electric energy buffer

Electric energy buffer

The electric energy available in the system shall be reused for dynamic reversing processes performed on single and multi-axis systems. A capacitor module that is connected to the shared dc link serves as electric energy buffer.

S120, S150

Optimized pulse patterns

Optimized pulse patterns

By optimizing clock frequency and pulse pattern, SINAMICS G and S are perfectly matched to SIMOTICS motors. The benefits are optimized performance and system efficiency, reduced system losses as well as lower temperature and noise levels.

S120, S150, G120P, G130, G150, G180

Energy usage / energy-saving counter

Energy usage / energy-saving counter

Energy usage is measured during operation. An energy-saving counter can be installed to indicate the cumulative energy savings during machine operation as compared to a fixed-speed application.

S120, S150, G110, G120, G120C, G120D, G120P, G130, G150

Energy recovery

Energy recovery

The recovery of braking energy enables energy savings of up to 70%, facilitates cooling of the system and ensures a more compact design.

S120, S150, G120, G120D, G180

DC link coupling with SINAMICS V20

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..

V20