Electronic building group for control of loading stages has logic control unit with bus line and data processing circuit connected to card unit with connections to loading stages

摘要

The electronic building group has a logic control unit (2). This unit incorporates a bus line (20) and a data processing circuit (30). The bus line is connected to a card unit (4) with connections (16) to loading stages (6) in frequency changing circuits (10). Each frequency changing circuit is connected to an electric motor (12).