"NORDAC PRO SK 500P" is intended to reduce control technology in the control cabinet.

Nord Drivesystems expands the possibilities for controlling various drive tasks from the control cabinet with the "NORDAC PRO SK 500P". The frequency inverter controls asynchronous and synchronous motors with and without encoder feedback and covers power classes from 0.25 to 160 kilowatts. The manufacturer mentions, among other things, storage systems, hoists, pumps, and dynamic applications as possible uses.

Positioning and Multi-Axis Control

Through the integrated "POSICON" function, the frequency converter can reach absolute positions or control a stepwise feed on continuous axes. Additionally, multiple drives can be moved synchronously. According to the manufacturer, sequential control of multiple axes including encoder evaluation is also possible. Nord cites storage systems as a possible application area.

Additional functions are available for different drive tasks. In hoisting applications, the frequency converter can handle overloads of up to 200 percent. Pump applications can be controlled via a PI regulation. For dynamic applications, the device features a sensorless CFC Open-Loop Injection control.

Four Ethernet Protocols Selectable

For integration into automation environments, the "NORDAC PRO SK 500P" features a multi-protocol Ethernet interface. Users can choose between Profinet, EtherNet/IP, Ethercat, and "POWERLINK" via parameter settings.

An integrated programmable logic controller can also take over drive-related functions. Within an automation architecture, the frequency inverter can thus be used for sub-tasks and, according to Nord, can relieve the higher-level programmable logic controller. For single machines, operation as a stand-alone device is also possible. In this application, the frequency inverter can, according to the manufacturer, take over the tasks of a higher-level controller.