SK 200E now up to 22kW

The self-cooling inverters are available for motor-mounting or with a wall mounting kit. An IP55 housing provides protection from dust and water jets. The new models feature the comprehensive list of standard functions typical of the SK 200E family, including sensorless current vector control, an integrated brake chopper, a control module for an electromagnetic brake, and the safety function ´Safe Torque Off´. User programming and operation of this distributed inverter range is with a choice of control boxes or via the free-of-charge NORDCON software. Common applications can be quickly selected via DIP switches. While they have been designed with an eye on cost-sensitive applications, SK 200E inverters are not limited to basic functions but possess the same wide functional range as the well-established SK 500E control cabinet inverters.

Highest efficiency through application-specific drive configuration: Optimizing drive solutions, tapping power reserves

Despite the introduction of energy efficiency classes IE2, IE3 etc. and the subsequent information that is now available, finding the most resource-efficient drive solution is not easy. A simple catalog based choice will often miss out on potential savings and therefore motors should be carefully selected according to the actual load profile of the application. To avoid inefficient drive specifications, NORD Drivesystems concentrates on power reserves which are derived from various sources. Firstly, the power a motor can generate in compliance with its temperature class is higher than the rated output as given in the catalog and on the motor type plate. Secondly, performance classes rise gradually; for a 3.7 kW output, for instance, it takes a 4 kW motor. Many customers will even select the next motor in size. This kind of »bigger is better» approach is anything but efficient.