Smart motor controller

Allen-Bradley SMC-50 smart motor controller from Rockwell Automation provides advanced monitoring and protection for OEM users and is rated at 200 V-690 V AC and is designed for normal-duty applications.


The Allen-Bradley SMC-50 smart motor controller by Rockwell Automation provides advanced monitoring and protection for OEM users and is rated at 200V-690V AC and is designed for normal-duty applications. Courtesy: Rockwell AutomationThe Allen-Bradley SMC-50 smart motor controller by Rockwell Automation is a solid-state motor controller that includes a three-phase, fully solid-state, silicon-controlled rectifier (SCR) power structure. The SMC-50 controller is designed for customer flexibility and combines advanced monitoring and protection features, multiple start and stop options, and expandable control inputs and outputs. These features help users increase efficiency, reduce downtime and improve control. 

Rated at 200 V-690 V ac and with software from 90 to 520 amps, the SMC-50 controller is ideal for controlling motor speed and torque in a range of normal-duty applications, including pumps, compressors and short conveyors, as well as in heavy-duty applications, such as rock crushers, wood chippers, centrifugal fans and long conveyors.

The SMC-50 smart motor controller’s design improves voltage output to maximize efficiency of motor starts and stops. For application scalability, it features nine standard starting modes, six stopping modes and several slow-speed functions. 

To further protect motor assets and decrease downtime, the SMC-50 controller utilizes advanced power monitoring and diagnostics. This results in highly scalable user-configurable faults and alarms, including motor overload protection, over/under voltage, stall protection, over/under power, jam detection, over/under current, excessive starts, current and voltage imbalance, power frequency protection, power factor protection, and preventative maintenance faults and alarms. The SMC-50 controller also features energy saver, motor winding heater, and the snapshot and event log features, which capture fault, alarm and operational history.

Rockwell Automation 

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