Since electric motor systems draw more than 65% of industrial power consumption...

drives energy efficiency

Siemens energy efficient drives can optimize motor control systems in

1 ways
  • Reduce energy consumption by as much as 70%

  • Create a return on investment (ROI) in as few as 6 months

  • Improve product quality, reduce production costs and lower CO2 emissions

Intelligent energy functions

SINAMICS variable frequency drives allow you to exploit energy-saving potential and optimize energy consumption

Depending on the application in question, energy consumption can be controlled by motor speed adjustment to suit the individual process and achieve the greatest possible energy savings. The energy consumption of drives for turbo machines can be cut by as much as 60%. Regenerative feedback is also an option for many applications. The SINAMICS portfolio is the most comprehensive and standardized range on the market and the first choice for anyone seeking an energy-efficient drive.

Drives-based energy functions

In pump, fan and compressor applications involving high outputs, the entire power demand is distributed among several motors. Phased connection and disconnection by means of partially or fully controlled cascades in combination with drives make a drive system more energy-efficient.

In this mode it is possible to "bypass" the drive electrically when the motor is frequently operating close to its rated speed. This solution helps reduce drive losses and increase overall efficiency.

The use of SINAMICS drives 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 compensation systems.

Drives-based energy functions – more

With dynamic reversing operations in single-axis and multi-axis systems, the kinetic energy available in the system is reused. A motor connected to the common DC link is used to buffer kinetic energy.

With dynamic reversing operations in single-axis and multi-axis systems, the kinetic energy available in the system is reused. A capacitor module connected to the common DC link is used to buffer electrical energy.

Thanks to optimized clock frequency and pulse pattern, certain SINAMICS G and S drives are perfectly suited to SIMOTICS motors and SIMOGEAR geared motors. The benefits: optimization of performance and system efficiency, reduced system losses as well as lower temperature and noise levels.

In conventional drive systems, the energy produced during braking is converted to heat using braking resistors. SINAMICS G and SINAMICS S converters with regenerative feedback capability need no braking resistor, and supply the resulting braking energy back into the power grid.

The drive estimates the real-time flow of pumps and fans based on the defined characteristic to realize effective flow control, reducing system power loss.

For applications that require simultaneous operation of up to six pumps, for example, this function saves energy by significantly equalizing fluctuating water pressures or flow rates.

System-wide energy management

PROFIenergy is a profile of the PROFINET communications protocol that allows the power consumption of automation equipment in manufacturing (such as robot assembly cells, laser cutters and sub-systems such as paint lines) to be managed over a PROFINET network. It controls energy usage during planned and unplanned breaks in production. No external hard-wired systems are required.

To be able to make the right decisions at the right time, you have to keep a constant eye on energy consumption throughout your entire company. With SIMATIC Energy Management, Siemens offers you a comprehensive, scaleable ISO 50001-certified portfolio of products and solutions – ranging from field-level energy data recording to company-wide energy analysis at the management level.

Energy management functions by drive

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SINAMICS V20
For basic motion
SINAMICS G120 

Modular vector
SINAMICS G120C 

Compact vector
SINAMICS G120X 

For pumps, fans & compressors
SINAMICS G130 

High-power components

with CU230P‑2 control unit

with CU230P‑2 control unit

with CU230P‑2 control unit

with PM250 power module
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SINAMICS S120 

High performance/servo modular
SINAMICS S120-combi 

High performance/servo drive for machine tools


Multi-axis only

Multi-axis only

with Active Line Module

Multi-axis only

Multi-axis only

Multi-axis only

Multi-axis only

with Smart Line Module or Active Line Module

with CU310‑2 control unit

with CU310‑2 control unit
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SINAMICS G110D 

Distributed V/Hz
SINAMICS G110M
Distributed, gear-motor
SINAMICS G120D 

Distributed vector
SINAMICS S120M 

Servo vector


Multi-axis only

with Active Line Module

Multi-axis only

Multi-axis only

with PM250 power module

with Smart Line Module or Active Line Module



with CU310‑2 control unit
Click column heads >
to visit product page
Click row heads v
for more details on energy functions
SINAMICS G120E 

Enclosed vector
SINAMICS G150 

High-power enclosed
Robicon-W
For minuicipal water/wastewater
SINAMICS S120CM 

Servo – chassis / cabinets
SINAMICS S150 

HP regenerative enclosed

with CU230P‑2 control unit

with CU230P‑2 control unit

with CU230P‑2 control unit

with CU230P‑2 control unit

with CU230P‑2 control unit

with CU230P‑2 control unit


Multi-axis only

Multi-axis only

with Active Line Module

with Active Line Module

Multi-axis only

Multi-axis only

Multi-axis only

Multi-axis only

with PM250 power module

with PM250 power module

with Smart Line Module or Active Line Module

with Smart Line Module or Active Line Module


with CU310‑2 control unit

with CU310‑2 control unit
System-wide energy efficiency

Tools

Siemens has created the means for you to track, analyze and manage energy usage to save money and our environment.

SinaSave drives / motors energy-saving application

 You've heard that you can save up to 70% of energy costs by simply using energy-efficient drives and motors, allowingd excess costs for highly efficient 

drive solutions to be covered quickly; lowering electricity costs to directly increase revenues. Wouldn't it be cool if there was a way to compare solutions for your exact application that shows how this could be achieved? How about a way to save the best system and order it?

 

Well cool is here: with SinaSave, the free Siemens application that gives you the power to reduce power.

SinaSave is designed for selecting a motor for line-fed operation or run by a variable-speed drive. In the case of line-fed operation, cost savings can be calculated as well as the amortization time for IE2 or NEMA Premium® energy-saving motors. In the case of drive-fed operation, all the necessary plant-specific parameters as well as the values required for the process are taken into consideration. SinaSave uses this information to determine the matching drive system, the price of the appropriate products and the energy requirement of the variable-speed drive system in comparison to alternative concepts.

 

The SinaSave software determines the key data required for making investment  decisions. On this basis, decisions regarding new acquisitions for drive systems can be made quickly and reliably.

Comparative analysis: Use of an IE2 motor instead of an IE1 motor in line-fed operation

The green area illustrates the possible total cost saving after switching to an IE2 motor. The amortization point indicates the time at which the excess costs for investing in the replacement motor are financed by additional energy savings – about 0.9 years.

Comparative analysis: Use of a variable speed drive instead of throttle control

The green area shows the energy-saving potential of drive-fed operation in comparison to throttle control. In this application example, SinaSave has calculated an amortization time of 6 months energy savings and a return on investment of 223%.

SIMATIC energy management software

Keep a constant eye on energy consumption throughout your entire company. With SIMATIC Energy Management, Siemens offers you a comprehensive, scaleable ISO 50001-certified portfolio of products and solutions – ranging from field-level energy data recording to company-wide energy analysis at the management level.