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Save energy with Lenze's VFC eco drive function

12 August 2011

The VFC eco energy saving function is now available for Lenze’s 8400 platform panel-mounted drives, in addition to the 8400 motec decentralised inverter series. The function cuts energy requirements significantly, especially in partial load operation. Combined with the new L-force MF three-phase ac motors, the VFC eco mode intelligently adjusts the motor’s magnetising current to the actual load requirements. Lenze says that energy savings of up to 30 per cent can be achieved.

VFC eco is available as a cost-free standard option with the 8400 inverters series StateLine, HighLine and TopLine in a power range 0.25 to 45kW.

Lenze’s new L-force MF three-phase AC motors also enable improved energy efficiency. These motors are specially designed to operate with frequency inverters. Instead of working at 50Hz, they operate at 120Hz, the frequency at which four-pole three-phase ac motors offer the highest efficiency levels.

Besides being more energy efficient, this delivers additional key benefits. Given that the higher speed leads to greater power density, the same output can be achieved with motors of up to two frame sizes smaller.

The size reduction increases performance with much less mass inertia and greater dynamics. In the 0.55 to 22kW power range, this Lenze BlueGreen Solution represents an all-round efficient drive solution.
 
 


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