没听说 ，是不是软起？

不是软启，软启在后面的叙述中有要求。

ASD是个伺服交流启动器！以PM型伺服马达为主力，控制回路采用高速数字信号处理器DSP控制!

個人觀點-僅供參考~

從wiki motor controller
得到解釋如下:
An adjustable-speed drive (ASD) or variable-speed drive (VSD) is an interconnected combination of equipment that provides a means of driving and adjusting the operating speed of a mechanical load. An electrical adjustable-speed drive consists of an electric motor and a speed controller or power converter plus auxiliary devices and equipment. In common usage, the term “drive” is often applied to just the controller.

這裡應該是個還在揣摩的先進技術
(此等級運用至今還無納入IEC or IEEE)
當然需要業主確認其所需要的程度