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About CNC Controllers
CNC controllers are computer numerically controlled (CNC) devices that control machines and processes. They provide capabilities ranging from simple point-to-point linear control to highly complex algorithms with multiple axes of control. CNC controllers are used to retrofit many types of machine shop equipment. Examples include horizontal mills, vertical mills, lathes and turning centers, grinders, electro discharge machining (EDM) equipment, torch tables, automatic welding machines, and inspection equipment. Some CNC controllers include machine retrofit kits for converting a manual machine to a CNC machine. These kits include common components such as software, cabling, and one or more signal generators, controllers, and motors. Servo motors can be precisely controlled and use motor position feedback via encoders or resolvers. Stepper motors provide incremental motion (steps) in response to pulses of current which alternately change the polarity of the stator poles.
Engineering Web: CNC Controllers - Machine Design
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Programmable Logic Controller (PLCS) - Servo Control -... reference information about programmable logic controllers ( PLCS), servo control units, motor controllers and many other types of controllers. |
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Cell Controllers | Machine Design Cell Controllers November 15, 2002 Printer-friendly version |
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Correcting errors that never happen | Machine Design For many years the standard means of controlling servoloops on motion controllers (or other devices) has been the PID loop. |
