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Smart standard drives provide servo dynamics and precision

Teamed with advanced inverter electronics for smart control functionality, standard asynchronous motors providing IE2 or IE3 efficiency and permanent-magnet IE4 synchronous motors can deliver servo-level dynamics and agility.


Bargteheide , 2014-11-19

Based on state-of-the-art frequency inverters for motor-mounting, wall-mounting, or cabinet installation, NORD DRIVESYSTEMS implement highly precise positioning tasks, safety applications, and sophisticated functions such as synchronization, coordinated multi-axis operation, winding control, and flying shear.

These systems are significantly more economic than conventional servo technology solutions since the purchase costs are much lower and since there is a much larger variety of available system components, including a very versatile gear program that allows for a wide range of custom-specific configurations. The frequency inverters feature a real-time microprocessor (cycle time 10 ms) and support free programming of drive-related functions according to IEC 61131 to relieve the workload of external PLCs. 200% overload reserve capacity ensures high operating safety, for instance in crane and hoist systems. Employing field-oriented control technology, these controllers achieve excellent consistency under flexible loads and from near standstill up to the motor’s rated speed, even without an encoder. Furthermore, the drives provide high starting torques and speed feedback can also be implemented. The top-of-the-range frequency inverter SK 540E from the control cabinet line integrates a universal encoder interface for SSI, BISS, EnDat profile 2.1, and Hiperface. NORD’s line-up of distributed inverter technology covers the performance range up to 22 kW, while cabinet devices range up to 160 kW. The German drive expert provides full-scale mechatronic drives, manufacturing geared motors and electronics units and programming logic functions in-house.