The new frequency inverter SK 540E

The latest stage in the evolution of the NORD frequency inverter series SK 500E. The flexible modular system for automation.

Frequency Inverter SK 540E Frequenzumrichter SK 540E

Flexible, Intelligent, Open

SK 540E with integrated mains unit / SK 545E with external 24V supply


  • Additional, universal interface for connection of SSI and BISS Interfaces, Hiperface, ENDAT 2.1, SIN/COS 1Vss, CANOPEN and HTL or TTL incremental encoders


  • Integrated PLC functionality for the implementation of simple automation applications or technological functions


  • Operation of asynchronous motors
  • „Open Loop“- and „Closed Loop“ operation of PM synchronous motors

FEATURES: SK 540E / SK 545E integrated PLC functionality and universal encoder interface

SIZES 1 - 4 (0,25 - 7,5 kW):

  • SK 500E basic equipment
  • "Safe stop" (STO) as per EN ISO 13849-1 Cat.4
  • Performance level e EN 61508 SIL3
  • CANopen on board
  • Incremental encoder input (TTL)
  • POSICON positioning control
  • Additional connections for control signals
  • Integrated PLC functionality
  • Universal encoder interface
  • Potential isolated PTC input