Rockwell Automation SMC-50 Soft Starter User Manual

About this manual

The Rockwell Automation SMC-50 is a microprocessor-based reduced-voltage soft starter designed for standard three-phase squirrel-cage induction or star-delta (6-wire) motors. It utilizes six back-to-back thyristors (SCRs) to provide controlled acceleration, running, and deceleration regulation. The device may include an optional integrated solid-state bypass contactor. This manual is written in Chinese.

What's inside

• Product Overview
• Wiring Connections
• Operating Modes
• Motor Configuration
• Programming Parameters
• Protection Functions
• Communication
• Diagnostics and Faults

Frequently asked questions

What type of motors is the SMC-50 soft starter designed for?

It is designed for standard three-phase squirrel-cage induction or star-delta (6-wire) motors.

How does the SMC-50 control motor speed?

It uses six back-to-back thyristors (SCRs), with two per phase, to regulate voltage.

Can the SMC-50 include a bypass contactor?

Yes, an optional integrated solid-state bypass contactor can be included in the power structure.