關(guān)于施耐德ATV312H037N4變頻器多功能及報警接口R1、R2,R1設置為FLT時(shí),接常開(kāi)好像只能顯示變頻器為正常運行狀態(tài)吧,接常閉開(kāi)關(guān)電源一打開(kāi)指示燈也會(huì )亮,我想用外接指示燈顯示變頻器故障,就是變頻器故障時(shí),外接故障黃燈才會(huì )亮,而不是沒(méi)有故障就會(huì )亮,請問(wèn)怎么實(shí)現?還有就是它設置為NO時(shí),變頻器運行時(shí)他會(huì )怎么動(dòng)作?