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可編程控制器PLC運(yùn)行時(shí)可能會(huì)出現(xiàn)死機(jī)的情況,這給工業(yè)生產(chǎn)造成不可預(yù)估的損失,因此,首先要了解PLC死機(jī)的原因,針對(duì)原因進(jìn)行排查,軟件或硬件錯(cuò)誤都有可能導(dǎo)致PLC死機(jī),下面分別進(jìn)行介紹:
1、硬件方面
(1)I/O竄電,PLC自動(dòng)偵測(cè)到I/O錯(cuò)誤,進(jìn)入STOP模式。
(2)I/O損壞,程序運(yùn)行到需要該I/O的反饋信號(hào),不能向下執(zhí)行指令。
(3)擴(kuò)展模塊(功能型,如A/D)線路干擾或開(kāi)路等。
(4)電源部分有干擾或故障。
(5)PLC的連接模塊及地址分配模塊出故障。
(6)電纜引起的故障。
2、軟件方面
(1)觸發(fā)了死循環(huán)。
(2)程序改寫(xiě)了系統(tǒng)參數(shù)區(qū)的內(nèi)容,卻沒(méi)有初始化部分。
(3)保護(hù)程序啟動(dòng):硬件保護(hù)、限制使用時(shí)間(針對(duì)貨款收回)
(4)數(shù)據(jù)溢出,步長(zhǎng)過(guò)大、看門(mén)狗 (可修改DOG時(shí)間)動(dòng)作。
Danfoss VLT FC202 AQUA DRIVE FC-202P75KT4E20H1
Danfoss Automation Drive FC302 131F0444 FC-302P55KT5E20H1XG
Danfoss FC-302 P/N 131H6199 400V 80A 45kW FC-302P45KT5E20H1
Danfoss Fc102 FC-102P45KT4E21H1XG 131B8841 400V 45kW + Profibus
Danfoss VLT6062 HT 175Z7035 VLT6062HT4C20STR3DLF00A00C0
Danfoss VLT HVAC FC-102 Drive FC-102P30kT4E20H1XN 131F9923
Danfoss VLT FC-302P11KT5E20H1 P/N: 131F8844 + MCA101
Danfoss FC-302P11KT5E20H1XG P/N 131H2737 400V 21A 11kW FC 302
Danfoss VLT2880 VLT2880PT4B20STR3DBF 195N1115
Danfoss VLT FC-302 131F8844 FC-302P11KT5E20H1XGX 400V
Danfoss VLT5016 VLT5016PT5C20STR3DLF10A00C0 175Z4299 +Profibus
Danfoss VLT2880 VLT2880PT4B20STR3DBF00A00C0 195N1111
Danfoss HVAC FC103 FC-102P11KT4E20H1 131F0427
Danfoss VLT 5008 VLT5008PT5C54STR3DLF00A00C0
Danfoss MCD 3000 Sanft Starter MCD3075-T5-C21-CV4 C/N 175G5034
Danfoss VLT6016 VLT6016HT4C20STR3DLF00A00C0 400V 24A 17.3kVA 175Z7029
Danfoss FC102 FC-102P7K5T4E20H1XG 131B9524 400V
Danfoss FC-102P7K5T4E20H1XG FC-102 131B3603 400V
Danfoss VLT2855PT4B20STR1DBF00A00 VLT2855 195N1087
Danfoss VLT6011HT4B20STR3DLF10A00C0 VLT6011 178B0238 + Profibus
Danfoss FC102 FC-102P5K5T4E20H1XG 131B9523
Danfoss VLT5006 VLT5006PT5B20EBR3D0F10A00C0 175Z0562 + Profibus 400V
Danfoss MCD 202-090-T4-CV3 175G5218
Danfoss VLT6008HT4B20STR3DLF00A00C0 Frequenzumrichter 400V 13A 175Z7009
Danfoss VLT6008 VLT6008HT4B20STR3D0F00A00C0 400V 12.2A 9,3kVA 178B2009
Danfoss VLT6011HT4B20STR3DLF10A00C0 VLT6011 178B0238
Danfoss VLT5005 VLT5005PT5B20STR3DLF00A00C0 + Profibus 175Z0058
Danfoss FC102 FC-102P4K0T4E20H1XG 131B9522 4,0kW 400V + Profibus
Danfoss VLT6006 VLT6006HT4C20STR3DLF00A00C0 400V 9,1A 175Z7026
Danfoss VLT6008 VLT6008HT4B20STR3D0F00A00C0 400V 12.2A 9,3kVA 178B2009
Danfoss VLT5006 VLT5006PT5B20STR3DLF00A00C0 175Z0064
Danfoss VLT5005 VLT5005PT5B20STR3DLF00A00 175Z0058
Danfoss VLT6005 VLT6005HT4B20STR3D0F00A00C0 178B2007
Danfoss FC-302P4K0T5E20H1XG +Profibus 131B0456
Danfoss FC-302P1K5T5E20H1 FC 302 Frequenzumrichter 400V 1,5kW 131B0030
Danfoss FC-302 P/N 131B0038 400V 4,8A 2,2kW FC-302P2K2T5E20H1
Danfoss VLT5004 VLT5004PT5B20EBR3D0F10A00C0 175Z0550 + Profibus
Danfoss VLT HVAC Drive FC-102P3K0T4E20H1BG 131H1915
Danfoss VLT FC-302 131B1955 FC-302PK55T5E55H2XG
Danfoss VLT 5004 175Z0050
Danfoss 195N1044 Frequenzumrichter VLT2815PT4B20
Danfoss VLT2830 VLT2830PT4B20SBR1DBF10A00C0 195N1068
Danfoss VLT2811PT4B20STR1DBF00A00C0 195N1027
Danfoss FC-302P1K5T5E20H1 Drive 400V 1,5kW + Profibus P/N 131B2113
Danfoss VLT2815 VLT2815PT4B20STR1DBF10A00 P/N: 195N1043
Danfoss LC Filter Netzdrossel 175Z4607 for VLT 5016/110% & 5022/160% 27,9A
Danfoss VLT2807 195N1015 VLT 2800
Danfoss VLT2811 195N1032 VLT2811PT4B20SBR1DBF10A00