Rockwell Automation Expands Family of Smart Motor Controllers with Internal Bypass

By Craig Resnick

Company and Product News

The new Allen-Bradley SMC-50 smart motor controller with internal bypass from Rockwell Automation helps to bring greater operational control over motor starts and stops. As an extension of the soft starter family, the SMC-50 smart motor controller is designed to deliver greater functionality and efficiency across multiple industries.

Soft starters traditionally use solid-state, silicon-controlled rectifiers (SCRs) to control voltage to the motor during startup, runtime and shutdowns. The reduced torque and current slowly introduces energy to the motor, helping to mitigate electrical and mechanical stress to the application. If these SCRs remain in the circuit once the motor is up to speed, the heat generated by these devices can lead to electrical inefficiency.

The SMC-50 smart motor controller with internal bypass provides access to several communication modules, including EtherNet/IP and DeviceNet networks. This connectivity, combined with its microprocessor platform, brings energy-monitoring capabilities and protection features that can help make applications easier to troubleshoot and fix.

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