Motor Controls

 

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Product Center > Motor Controls

What Is A Motor Control?



Elevators, conveyors, pumps, compressors, hoists, blowers, fans and machine tools all rely on electric motors. Manufacturing in particular invests heavily in electric motors. For every motor, there is a control center — a motor-starting device or system. A magnetic motor starter is one example of a type of motor control. Magnetic motor starters are a slight misnomer because these devices are responsible for not only starting but running and sometimes staging an electric motor. “Staging” refers to the starter assemblies that cause a motor to reverse direction, plug (install), jog (test) or change to another speed. The motor starter also possesses some integral overload protection. The magnetic motor starter is the heart of the control schemes for the magnetic (as opposed to electronic) control of electric motors, whether that control be found in wall-mounted enclosure, part of a combination motor starter/circuit protector, part of some sort of reduced-voltage starter, or part of a motor control center.


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Main Components of Industrial Motor Controls

Industrial motor control parts and assemblies include but are not limited to:
  • Frame or enclosure
  • Back pan
  • Operating mechanism for disconnect
  • Pilot devices — pilot lights, pushbuttons, selectors, meters
  • Relays-timing, control, overload
  • Contactors, starters
  • Control power transformer
  • Instrument transformer
  • Wiring harness
  • Primary bus disconnect or “stab assembly”
  • Conductive metals
Common Types of Industrial Motor Controls


Common types of industrial motor controls include, but are not limited to, combination starter, industrial pump, magnetic coil, magnetic contactor, magnetic starter, manual starter and control relay.


ROMAC's Reconditioned Industrial Motor Control Inventory

Reconditioning is the process of returning electrical equipment to safe and reliable operating condition based upon the design of the original manufacturer at the time of manufacturing. ROMAC regularly carries inventory from all the major motor control manufacturers, including: Siemens, Cutler-Hammer, SquareD, Allen-Bradley, Furnas, ITE, and Gould. ROMAC follows PEARL industry standards to recondition a motor control beginning with the disassembly of the motor control unit down to its major subassemblies and components.  Reconditioning procedures include disassembly, cleaning, degreasing, deburring, plating, painting, lubricating and adjusting. After reconditioning, subassemblies can be reinstalled in the now cleaned and painted enclosure or frame, including the addition of upgrades or options to improve the apparatus’s performance. Assembly of the reconditioned components and subassemblies is followed by final inspection and testing. As with all testing, inspection and reconditioning operations, final inspection and test results are recorded onto the Evaluation and Test forms included with the standard.