| 摘要 |
A microprocessor-based controller for a stepper motor driven machine tool compensation system is disclosed. The step pulses for the motor are stored in the controller firmware as a table of numbers, each number representing the time elapsing from one motor step command to the next, thus enabling precise generation of the desired motor velocity versus time characteristic. The controller additionally interprets compensation system command inputs, drives a system display unit, and activates appropriate output status signals to the compensation system and machine tool apparatus. The controller is capable of detecting impending commercial power failure and protecting, via battery back-up power, its volatile random access memory.
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