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NORD Drivesystems
SK 540E: Compact inverters with integrated PLC functionality
By adding the top-of-the-line SK 540E, featuring an integrated basic PLC functionality, NORD Drivesystems has expanded its SK 500E series of compact frequency inverters for control cabinet installation. This cost-effective inverter – which does not require the support of an external controller - is able to control many demanding applications with sequences and links to counters, comparators and flags that are easily programmed in accordance with the industry standard IEC 61131-3 using the PC-based NordCon tool.
The PLC provides control for up to eight digital inputs, three digital outputs, two relays, two analog inputs and one analog output. Additional I/O extension modules can also be added for increased machine control. The new inverter may be used for applications such as the integration of monitoring functions into pump drives which enables them to autonomously react to flow rate fluctuations.
Further, all operating data can also be transferred to higher-level controls with the SK 540E featuring interfaces for all standard fieldbus systems. Even without an integrated PLC, SK 500E series inverters support a wide range of industrial applications through integrated functions including PID process control, a servo mode that ensures full torque at standstill, and absolute and relative positioning with the POSICON module.
SK 500E inverters are available in seven sizes and cover motor ratings between 0.25 and 37 kW. The new SK 540E will shortly be available for performances up to 7.5 kW. Models from 11 to 37 kW are also under way.
Figure: The SK 540E, which will be available shortly, is a cost-efficient frequency inverter for control cabinet installation with integrated PLC functionality
Further, all operating data can also be transferred to higher-level controls with the SK 540E featuring interfaces for all standard fieldbus systems. Even without an integrated PLC, SK 500E series inverters support a wide range of industrial applications through integrated functions including PID process control, a servo mode that ensures full torque at standstill, and absolute and relative positioning with the POSICON module.
SK 500E inverters are available in seven sizes and cover motor ratings between 0.25 and 37 kW. The new SK 540E will shortly be available for performances up to 7.5 kW. Models from 11 to 37 kW are also under way.
Figure: The SK 540E, which will be available shortly, is a cost-efficient frequency inverter for control cabinet installation with integrated PLC functionality
