ATS480 Cascade Function - Application Note

This document provides guidance on implementing and configuring the cascade function for the Altivar Soft Starter ATS480. It explains how to start and stop multiple asynchronous motors using a single soft starter through an electromechanical sequence controlled by contactors. The document includes a detailed use case featuring a 4-pump water substation with motors rated at 37kW 400Vac, complete bill of materials, electrical diagrams for motor mains supply and control circuits, commissioning procedures, and operational sequences. It covers the advantages and limitations of cascade architecture, configuration settings for torque control with deceleration ramps, wiring instructions for control terminals and relays, and detailed electromechanical sequences for starting, stopping, and switching between motors. The guide also addresses supply loss consequences and provides chronograms illustrating the complete operation cycle. Note: AI-generated document summary. Please check the original document for detailed information.