SEW EURODRIVE
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293
07
– Energy efficiency in servo applications
Features
The crucial part of energy-ef²cient operation of servo drive technology is the detailed planning and
ful²lment of process and ef²ciency requirements. With the energy ef²ciency concept ef²DRIVE
®
for
servo applications, SEW-EURODRIVE offers comprehensive consulting during the planning of new
plants and the modernization of existing systems. With our great expertise regarding drive tech-
nology and the industry, we focus on ef²ciency already during the ²rst steps of selecting the used
technology and products in order to optimize the energy consumption. But it is not suf²cient to only
combine energy-ef²cient components. Only looking at the application in its entirety allows for the
maximum energy ef²ciency.
Energ
y-efIcient components
Sine-shaped regenerative
power supply modules
MXR80A
–
In regenerative operating states, the braking energy is fed back into the supply system
–
Energy supply and energy recovery are sinusoidal with cos
φ
= 1
–
Almost complete avoidance of supply harmonics
–
No interference of sensitive electronic devices in direct vicinity
–
Determination of energ
y ²ow, detailed diagnostic information
–
Controlled DC link voltage independent of link voltage
Block-shaped regenerative
power supply modules
MXR81A
–
In regenerative operating states, the braking energy is fed back into the supply system
–
Inexpensive alternative to sinusoidal regenerative power supply if the supply system
conditions are stable
–
Automatic deactivation of the recovery during motoring operation
–
Emergency braking resistor can be connected
MXC80A
capacitor module
–
DC link energy is absorbed or supplied with up to 50 kW
–
Up to 1000 W can be stored in the module
–
The charging of the module is actively via charging connection
–
With adequate project planning, the braking energy can be completely recycled
for the next travel task
–
There is no need for braking resistors
– Especially suited for cycles with small drives
MXP81A
compact power supply module
–
Combination of 10 kW power supply module and 250 Ws capacitor module
–
Especially cost-effective and space-saving with small systems
–
Size-optimized braking resistor is already integrated in the module