【正文】
QF3空氣開關(guān)10/B3繼電器( KA7)控制其開 /合控制電機開合回路滅弧器KA7(繼電器觸點)110AKM30VACPLC輸出信號使繼電器 KA7的線圈回路接通,于是繼電器 KA7觸點閉合回路接通, KM3接觸器線圈產(chǎn)生磁場使得 KM3主觸點吸合,排屑電機主回路接通,電機開始工作。PLC輸出信號KA7排屑電機過熱回路低壓變壓器03/E8低壓變壓器03/E7QF3(空氣開關(guān))輔助觸點364 366836當排屑電機過熱這個回路中 QF3(空氣開關(guān)斷開,電機停止。線排實物圖謝謝觀看!謝謝觀看 /歡迎下載BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH