一、防火卷簾門為什么會自動下降
1、我們自己按的手動按鈕。防火卷簾門手動按(an)鈕一(yi)般有3個按(an)鈕鍵(jian),從上(shang)到下依次為:上(shang)升(sheng)鍵(jian)、暫停鍵(jian)、下降(jiang)鍵(jian)。當按(an)下降(jiang)鍵(jian),卷簾(lian)門下會下降(jiang)。
2、煙(yan)(yan)(yan)感(gan)(gan)(gan)、溫感(gan)(gan)(gan)探測(ce)到(dao)信號(hao),致(zhi)使卷(juan)(juan)簾門下(xia)降。這里有兩種情況,一(yi)(yi)(yi)種是煙(yan)(yan)(yan)感(gan)(gan)(gan)、溫感(gan)(gan)(gan)連接(jie)(jie)(jie)(jie)消(xiao)防(fang)(fang)中控,現(xian)場環境致(zhi)使煙(yan)(yan)(yan)感(gan)(gan)(gan)、溫感(gan)(gan)(gan)探測(ce)到(dao)信號(hao),反饋到(dao)消(xiao)防(fang)(fang)中控,消(xiao)防(fang)(fang)發(fa)信號(hao)到(dao)控制箱,控制模塊下(xia)指(zhi)令,導致(zhi)卷(juan)(juan)簾門降落。另一(yi)(yi)(yi)種情況是煙(yan)(yan)(yan)感(gan)(gan)(gan)、溫感(gan)(gan)(gan)直接(jie)(jie)(jie)(jie)連接(jie)(jie)(jie)(jie)防(fang)(fang)火卷(juan)(juan)簾門,當現(xian)場煙(yan)(yan)(yan)霧(wu)達到(dao)一(yi)(yi)(yi)定(ding)程度時,煙(yan)(yan)(yan)感(gan)(gan)(gan)發(fa)信號(hao),卷(juan)(juan)簾門降到(dao)一(yi)(yi)(yi)半,當溫度達到(dao)一(yi)(yi)(yi)定(ding)程度時,卷(juan)(juan)簾門下(xia)落到(dao)底,有客戶就要求煙(yan)(yan)(yan)感(gan)(gan)(gan)、溫感(gan)(gan)(gan)直接(jie)(jie)(jie)(jie)連接(jie)(jie)(jie)(jie)防(fang)(fang)火卷(juan)(juan)簾門上。
3、高溫(wen)熔斷(duan)(duan)急(ji)落裝置工(gong)作。每樘(tang)防火(huo)卷(juan)簾(lian)門(men)都配有高溫(wen)熔斷(duan)(duan)急(ji)落裝置,就是在(zai)控制箱內部裝有類似八(ba)字的(de)(de)錫條焊接的(de)(de),當溫(wen)度達到73℃±0.5℃時(shi),控制箱內的(de)(de)錫條熔化(hua),拉(la)開卷(juan)門(men)機的(de)(de)抱閘,防火(huo)卷(juan)簾(lian)門(men)靠自重下降。
二、防火卷簾門常見故障及處理方法
1、防火卷簾門不動
首先應檢(jian)查(cha)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan),看防火(huo)卷(juan)簾(lian)門的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)空開是(shi)(shi)否有(you)電(dian)(dian)(dian)(dian)(dian),如(ru)(ru)果沒電(dian)(dian)(dian)(dian)(dian),就應線檢(jian)查(cha)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)部分。如(ru)(ru)果有(you)電(dian)(dian)(dian)(dian)(dian),此(ci)時卷(juan)簾(lian)控制箱(xiang)(xiang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)指(zhi)示燈(deng)應當是(shi)(shi)綠色常亮。如(ru)(ru)果指(zhi)示燈(deng)不亮此(ci)時我們應檢(jian)查(cha)控制箱(xiang)(xiang)內(nei)的(de)(de)變壓(ya)器(變壓(ya)器的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻270歐(ou)姆(mu))是(shi)(shi)否燒(shao)壞。如(ru)(ru)果電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)指(zhi)示燈(deng)是(shi)(shi)綠色閃爍,表明電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)部分可(ke)(ke)能(neng)缺相,如(ru)(ru)果電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)不缺相有(you)可(ke)(ke)能(neng)是(shi)(shi)控制箱(xiang)(xiang)的(de)(de)備用電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)板燒(shao)壞;也(ye)有(you)可(ke)(ke)能(neng)住電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)板和備用電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)板都燒(shao)壞。
2、電源空開推不上
送(song)閘(zha)時(shi),空開推(tui)不上(shang)首先(xian)應檢(jian)查(cha)備(bei)用(yong)板(ban)(ban)是(shi)否有問題,備(bei)用(yong)板(ban)(ban)的輸出線的電阻約為300歐姆。如果開路(lu)時(shi)或(huo)短路(lu)應該檢(jian)查(cha)電機的點剎車是(shi)否燒(shao)壞,或(huo)檢(jian)查(cha)備(bei)用(yong)板(ban)(ban)是(shi)否燒(shao)壞。
3、操作按鈕使用不靈
應當先(xian)按(an)下停(ting)止(zhi)鍵,再按(an)下復位鍵,然后(hou)按(an)上行下行鍵。
4、電源控制箱或按鈕面板的指示燈全亮
這時(shi)(shi)應先(xian)檢查按鈕線是(shi)否有短路現象(xiang)或某一個按鈕被壓死的可能,如(ru)果以(yi)上(shang)現象(xiang)不存(cun)在,有可能是(shi)電源主板(ban)上(shang)的芯(xin)片壞掉,這時(shi)(shi)應更(geng)換(huan)芯(xin)片。注意(yi)要反著裝(zhuang),即開(kai)口對著開(kai)口。
5、防火卷簾門按鈕操作只有上行或下行
這(zhe)時應先檢查限位線是否有(you)掉線現象,如(ru)果(guo)沒有(you),有(you)可能是主電源板(ban)壞了(le)。
6、防火卷簾門操作按鈕不好用或按什么按鈕都是下行
應先檢查主電板(ban)與備電板(ban)的連(lian)接排線時(shi)是否(fou)松動。
7、增加鎖控
只需在排線的(de)第5和(he)12的(de)空上串接一個(ge)約1K的(de)電阻(zu)。
8、判斷電機的好壞
電(dian)(dian)機(ji)的三(san)相電(dian)(dian)阻達47-70歐姆且三(san)相平衡(heng)。三(san)相不(bu)平衡(heng)可能是電(dian)(dian)機(ji)壞了。
9、防火卷簾門報警
防火卷簾門報警時,應當先讓(rang)防火卷簾門自動下(xia)降到底,途(tu)中不要按任(ren)何(he)按鈕,然后再上行。
10、防火卷簾門的安裝調試
在(zai)安裝調試之(zhi)前(qian)應先檢(jian)查控制器、按(an)鈕盒、卷門機、行(xing)程開關(guan)、電剎車的連接線(xian)是否正常,確認后再(zai)進行(xing)調試。