Drive technology invites to economise

Lenze's demand is: Assembly technology costs should be reduced!



Due to long running times, energy presents a large cost pool for the operating expenses in the fields of assembly and handling technology. Hence, correctly dimensioned drive concepts with their maximum energy efficiency open up extremely interesting cost-cutting potentials. Therefore Lenze firmly pursues the goal to convert electricity into kinetic energy as efficiently as possible. This demand has for instance brought about the 8400 motec drive packages. The decentralised solutions combine a great dynamic performance and power density at a high energy efficiency to a drive package that is ready for installation.


AC standard motors in the lower power range and with a fixed speed still characterise the image in the material flow. Here it also pays off to economise. If, for example, the motors reach the energy efficiency class IE2 in accordance with IEC 60034-30, the consumption decreases noticeably. The MH Lenze motor series is designed in a manner that steps in size and therefore complex design adaptations during the migration to IE2 are avoided to a large extent.


In controlled operation, frequency inverters provide for a smooth start-up and thus avoid torque impulses during acceleration and braking. With the new L-force MF three-phase AC motors, the specialist for drive and automation technology has still succeeded in outperforming the minimum efficiencies of efficiency class IE2. The series is entirely adapted to frequency inverters. Higher speeds and a very good efficiency render it possible to use motors that are up to two designs smaller at the same output power. The smaller design increases the performance with considerably lower mass inertias, a higher dynamic performance, and lower investment costs.


Generally the following applies: Drive solutions that work efficiently and are correctly dimensioned open up high cost-cutting potentials without a loss in comfort. Investment decisions in this field therefore are increasingly based on the life-cycle costs and the Return on Investment (ROI). Accordingly, the operating expenses incurred during the period of use play an increasingly important role compared to the net purchase price of a system. In light of this, Lenze has developed the Drive Solution Designer (DSD). DSD is a convenient tool for machine developers to work on the optimum mechanical and electrical motion control – even including the Energy Performance Certificate.