| 摘要 |
PROBLEM TO BE SOLVED: To reduce the cost with simple constitution, and raise the regenerative load consumption capacity of the system at large, and optimize the difference in the amount of regenerative load consumption among motor controllers. SOLUTION: A regeneration method of the system includes control units 22-24 with regenerating circuits 4 and terminals 10 and 10 for PN voltage and plural shafts of motors 6, and a controller 16. All control units is made to share PN voltage, and the data on regenerative voltage from each control unit is transferred to the controller 16, the controller 16 is made to evaluate the data on regenerative load, and the control unit corresponding to the data on large regenerative load is made to generate a command to raise the regeneration circuit action level of that controller, and the control unit corresponding to the data on small regenerative load is made to generate a command to lower the regeneration circuit action level of that control unit. Large regenerative load consumption capacity is obtained by dissolving the regenerative load unbalance among each shaft and the next, or consuming the regenerative load too large with one shaft, with all shafts of the system. |
