TRICONEX 3000120-380
TRICONEX 3000120-380
【廈門(mén)莫格電氣自動(dòng)化有限公司】
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熱繼電器的故障及維修
熱繼電器的故障一般有熱元件燒壞、誤動(dòng)作和不動(dòng)作等現(xiàn)象。
?。?)熱元件燒斷。當(dāng)熱繼電器動(dòng)作頻率太高,負(fù)載側(cè)發(fā)生短路或電流過(guò)大,致使熱元件燒斷。欲排除此故障應(yīng)先切斷電源,檢查電路排除短路故障,再重選用合適的熱繼電器,并重新調(diào)整定值。
?。?)熱繼電器誤動(dòng)作。這種故障的原因是:整定值偏小,以致未過(guò)載就動(dòng)作;電動(dòng)機(jī)起動(dòng)時(shí)間過(guò)長(zhǎng),使熱繼電器在起動(dòng)過(guò)程中就有可能脫扣;操作頻率過(guò)高,使熱繼電器經(jīng)常受起動(dòng)電流沖擊 ;使用場(chǎng)所強(qiáng)烈的沖擊和振動(dòng),使熱繼電器動(dòng)作機(jī)構(gòu)松動(dòng)而脫扣;另外如果聯(lián)接導(dǎo)線太細(xì)也會(huì)引起熱繼電器誤動(dòng)作。針對(duì)上述故障現(xiàn)象應(yīng)調(diào)換適合上述工作性質(zhì)的熱繼電器,并合理調(diào)整整定值或更換合適的聯(lián)接導(dǎo)線。
?。?)熱繼電器不動(dòng)作。由于熱元件燒斷或脫落,電流整定值偏大,以致長(zhǎng)時(shí)間過(guò)載仍不動(dòng)作 ;導(dǎo)板脫扣;聯(lián)接線太粗等原因,使熱繼電器不動(dòng)作,因此對(duì)電動(dòng)機(jī)也就起不到保護(hù)作用。根據(jù)上述原因,可進(jìn)行針對(duì)性修理。另外,熱繼電器動(dòng)作脫扣后,不可立即手動(dòng)復(fù)位,應(yīng)過(guò) 2 min,待雙金屬片冷卻后,再使觸頭復(fù)位。
2.3 時(shí)間繼 電器的故障維修空氣式時(shí)間繼電器的氣囊損壞或密封不嚴(yán)而漏氣,使延時(shí)動(dòng)作時(shí)間縮短 ,甚至不產(chǎn)生延時(shí);空氣室內(nèi)要求極清潔,若在拆裝過(guò)程中使灰塵進(jìn)入氣道內(nèi)氣道將會(huì)阻塞,時(shí)間繼電器的延時(shí)時(shí)間會(huì)變得很長(zhǎng)。針對(duì)上述情況可拆開(kāi)氣室,更換橡膠薄膜或清除灰塵,即可解決故障??諝馐綍r(shí)間繼電器受環(huán)境溫度變化影響和*存放都會(huì)發(fā)生延時(shí)時(shí)間變化,可針對(duì)具體情況適當(dāng)調(diào)整。
2.4 速度繼電器的故障和維修速度繼電器發(fā)生故障后 ,一般表現(xiàn)為電動(dòng)機(jī)停車時(shí),不能制動(dòng)停轉(zhuǎn)。此故障如果不是觸頭接觸不良,就可能是調(diào)整螺釘調(diào)整不當(dāng)或膠木擺桿斷裂引起的。只要拆開(kāi)速度繼電器的后蓋進(jìn)行檢修即可。
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OMRON 24V RELAY TIMER H3YN-4
OMRON TIMER RELAY H3CR-F8 300
SIEMENS 20A 600V RELAY 3TF4022-0A
IDEC RELAY SOCKET BASE LOT OF 2 SH4B-05
HOURS INDICATOR NUMERICAL COUNTER 621-07-3 102951
ALLEN BRADLEY 7AMP 24VDC RELAY LOT OF 10 700-HC14Z24-4 SER D
ABB 4P RELAY TBC25
OMRON 24VDC RELAY W/ BASE LOT OF 3 G3RZ-201SLN 101289
ALLEN BRADLEY 3A 12VDC COIL GENERAL PURPOSE RELAY 700-HC14Z12 SER. C *NEW*
DAYTON RELAY SOCKET BASE LOT OF 2 5X852E
OMRON 24VDC RELAY LOT OF 6 G2R-2-SND
ALLEN BRADLEY 10A 120VAC RELAY SER.D 700-HA32A1 102402
SQUARE D 24VDC RELAY LOT OF 5 8501KUD13M1P14V?53
ALLEN BRADLEY 12V 10A RELAY LOT OF 2 700-HA32A 12
ALLEN BRADLEY 24VDC 10A RELAY SER D LOT OF 2 700-HA32Z24 100733
IDEC RELAY LOT OF 4 RR3B-UL
SIEMENS RELAY 3TB40 17-OA
POTTER & BRUMFIELD 24VDC RELAY LOT OF 3 KU-6015-1
ALLEN BRADLEY 10A 300V RELAY SOCKET BASE LOT OF 6 700-HN116 SER B
BANNER SWITCH PROGRAMMING MODULE CL5RA
FUJI ELECTRIC 200--220V 8A RELAY LOT OF 3 HH62P-CRL
PILZ 24VAC/DC 5,0VA 2,5W SAFETY RELAY PNOZ X3P24VDC24VAC3N?/O1N/C1SO 99258
IDEC RELAY LOT OF 4 21115-A3
DAITO 1.3A FUSE LOT OF 6 P413
ALLEN BRADLEY 120VAC RELAY SER.C 700-HA32A1-1
OMRON RELAY WITH BASE LOT OF 3 G2R-2-SN 101308
MARS CONTROL CO. RELAY T1L-60-61
SIEMENS CONTROL RELAY LOT OF 2 8 TH 80 22-0A
OMRON RELAY SOCKET BASE LOT OF 4 PYF08M
ALLEN BRADLEY RELAY LOT OF 5 700-HA32A1 SER C
SICK SAFETY RELAY UE10-3OS3D0 / 6024918 99532
IDEC DC24V RELAY LOT OF 4 RH2B-UL
OMRON 24VAC RELAY LOT OF 3 LY2 99814
SQUARE D 120V RELAY LOT OF 5 8501 KP12V20 SER D
OMRON 14 PIN RELAY SOCKET LOT OF 5 PYF14T
ALLEN BRADLEY 24V 7A RELAY LOT OF 6 700-HC24Z24 SER D
DURAKOOL MERCURY RELAY 120V 60HZ BF3-7024 NO
IDEC DC 24 V RELAY LOT OF 2 RY2S-U 99804
OMRON RELAY WITH BASE LOT OF 2 MK2P-S
CUTLER HAMMER DPDT 110VDC COIL RELAY SER.A2 NIB D5PR2A1 102625