電(dian)(dian)(dian)(dian)梯(ti)(ti)停候在上面某(mou)層，當(dang)一(yi)樓按下外召(zhao)喚(huan)時(shi)(shi)(shi)，實(shi)際(ji)上簡單的(de)理(li)解是一(yi)個觸(chu)點開關，按下去(qu)的(de)一(yi)瞬間(jian)，指令通(tong)過井內電(dian)(dian)(dian)(dian)線傳輸到(dao)(dao)控(kong)(kong)(kong)(kong)制(zhi)柜的(de)主控(kong)(kong)(kong)(kong)制(zhi)板（或信(xin)號控(kong)(kong)(kong)(kong)制(zhi)板或PC機控(kong)(kong)(kong)(kong)制(zhi)板或相對原始(shi)的(de)電(dian)(dian)(dian)(dian)梯(ti)(ti)就是繼(ji)電(dian)(dian)(dian)(dian)器動(dong)(dong)(dong)(dong)作），我們以(yi)控(kong)(kong)(kong)(kong)制(zhi)板為例，它收到(dao)(dao)瞬間(jian)信(xin)號以(yi)后再次觸(chu)動(dong)(dong)(dong)(dong)控(kong)(kong)(kong)(kong)制(zhi)板內的(de)固有程序(xu)，同(tong)時(shi)(shi)(shi)由(you)它輸出電(dian)(dian)(dian)(dian)梯(ti)(ti)準備如何響應的(de)指令，分別至外呼燈亮(liang)及(ji)驅(qu)動(dong)(dong)(dong)(dong)裝(zhuang)置，然(ran)后電(dian)(dian)(dian)(dian)能直(zhi)接或間(jian)接驅(qu)使(shi)電(dian)(dian)(dian)(dian)機帶動(dong)(dong)(dong)(dong)變(bian)速箱轉(zhuan)動(dong)(dong)(dong)(dong)，通(tong)過鋼絲繩(sheng)與曳(ye)引輪(lun)的(de)摩擦力(li)帶動(dong)(dong)(dong)(dong)轎廂向下運行(xing)，每(mei)一(yi)層都有一(yi)個平(ping)層裝(zhuang)置來采集電(dian)(dian)(dian)(dian)梯(ti)(ti)所處位置，當(dang)電(dian)(dian)(dian)(dian)梯(ti)(ti)快到(dao)(dao)一(yi)樓時(shi)(shi)(shi)，控(kong)(kong)(kong)(kong)制(zhi)板通(tong)過程序(xu)輸出不(bu)同(tong)信(xin)號來控(kong)(kong)(kong)(kong)制(zhi)驅(qu)動(dong)(dong)(dong)(dong)裝(zhuang)置，使(shi)電(dian)(dian)(dian)(dian)梯(ti)(ti)換速到(dao)(dao)1樓平(ping)層開門，實(shi)現電(dian)(dian)(dian)(dian)梯(ti)(ti)外召(zhao)指令。

工作(zuo)方(fang)法類同于上(shang)一個問題，只(zhi)是(shi)(shi)把外召(zhao)按(an)鈕(niu)搬(ban)到了轎(jiao)內，工作(zuo)運行也(ye)相(xiang)同。不(bu)(bu)(bu)同的(de)是(shi)(shi)轎(jiao)廂(xiang)指令(ling)起動的(de)程序與外召(zhao)喚(huan)不(bu)(bu)(bu)同，程序是(shi)(shi)獨立的(de)，外召(zhao)喚(huan)有(you)上(shang)、下(xia)按(an)鈕(niu)，而(er)轎(jiao)內的(de)沒有(you)上(shang)、下(xia)之分是(shi)(shi)直(zhi)達（除非路過的(de)樓外有(you)同方(fang)向召(zhao)喚(huan)指令(ling)），站在外面按(an)上(shang)及下(xia)所(suo)響應的(de)結果是(shi)(shi)不(bu)(bu)(bu)同的(de)，這(zhe)里我不(bu)(bu)(bu)做詳解了，相(xiang)信(xin)您經常(chang)做電(dian)(dian)梯有(you)感觸，當(dang)你要(yao)下(xia)樓時同時按(an)上(shang)、下(xia)所(suo)得到的(de)電(dian)(dian)梯響應是(shi)(shi)有(you)區(qu)別(bie)的(de)，電(dian)(dian)梯做的(de)功也(ye)不(bu)(bu)(bu)同，不(bu)(bu)(bu)利于節能。