Thursday, April 10, 2014
Specifications of a Conveyor Motor
Conveyors are utilized in industrial and manufacturing capacities to perform the movement of products from one location to another. Using belt and gravity systems, conveyors are an integral part of the operations of certain companies . The conveyor motor, which creates the movement necessary for the conveyor to operate correctly, is made of several different components, each with its own function.
Speed Drives
Speed drives perform an important function in the operation of the conveyor motor and the conveyor belt as a whole. Speed drives control the operation and speed of the conveyor. Due to the nature of the conveyor, such drives are required to have a consistent torque level throughout the operation of the machine. A consistent torque level allows for the conveyor to handle the particular load being transported. Speed, which is also controlled by the driver, varies according to the industry the conveyor is being used in, as well as in maintenance, adjustment or set-up situations. The speed driver allows for the conveyor speed to be adjusted and theore provide better control over the processes. Many speed drives will control the operating speed so that it does not drop below 5 percent of the optimal speed when the conveyor is loaded down.
Starter
The motor starter for a conveyor controls the circuitry of the conveyor. The starter allows for the necessary electrical currents to be fed into the motor for the operation of the conveyor. Rockwell Automation notes that traditional conveyor systems break down the starter and control components for each individual function of the conveyor system. This "results in a mass of complex control and power wiring out to the individual motors and other field components." While not all systems will have such complex set-ups for their starters, the possible need for multiple motors, and theore multiple starters, is a reality in the larger industries. In this case, a conveyor may be quite long and operate on different speeds in each section.
Soft-Start and Soft-Stop Controls
Soft-start and soft-stop controls are in charge of the starting and stopping of the conveyor. A soft-start control is defined as a means for the motors power to slowly increase from its starting torque to full power without damaging the system or the motor. Similarly, soft-stop also helps to limit any damage to the motor or conveyor system through a gradual drop in the power.
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