| 摘要 |
PURPOSE:To vary a constant in one-line mode by providing a nonvolatile memory between a man machine and an RAM and performing two-stage data transfer. CONSTITUTION:When the gain constant of a speed arithmetic part is varied in operation by a thyristor Leonard system under digital control, the gain constant to be varied is set with a digital switch on a constant setting panel 1. Then, this is loaded in the nonvolatile memory EEPROM2. Then, the constant is transferred from the EEPROM2 to the RAM3 and a CPU5 uses this new data to perform arithmetic according to codes in an ROM4. The result is inputted to a gate pulse generator 6, which outputs a new phase control angle to a thyristor device 7. Consequently, the device is reduced in size and processing is speeded up, so high-speed processing which follows up a control system is realized. |
