1734-VHSC5現(xiàn)貨;
1734-VHSC5供應(yīng)。
日常維護(hù)
PLC的日常維護(hù)和保養(yǎng)比較簡(jiǎn)單,主要是更換絲和鋰電池, 基本沒(méi)有其它易損元器件。由于存放用戶(hù)程序的隨機(jī)存儲(chǔ)器(RAM)、計(jì)數(shù)器和具有保持功能的輔助繼電器等均用鋰電池保護(hù),鋰電池的壽命大約為5年,當(dāng)鋰電池的電壓逐漸降低到一定程度時(shí),PLC基本單元上電池電壓跌落到指示燈亮,提示用戶(hù)注意有鋰電池所支持的程序還可保留一周左右,必須更換電池,這是日常維護(hù)的主要內(nèi)容。
調(diào)換鋰電池的步驟為:
■在拆裝前,應(yīng)先讓PLC通電15秒以上(這樣可使作為存儲(chǔ)器備用電源的電容器充電,在鋰電池?cái)嚅_(kāi)后,該電容可對(duì)PLC做短暫供電,以保護(hù)RAM 中的信息不丟失);
■斷開(kāi)PLC的交流電源;
■打開(kāi)基本單元的電池蓋板;
■取下舊電池,裝上新電池;
■蓋上電池蓋板。
注意更換電池時(shí)間要盡量短,一般不允許超過(guò)3分鐘。如果時(shí)間過(guò)長(zhǎng),RAM中的程序?qū)⑾А?br>
此外,應(yīng)注意更換絲時(shí)要采用型號(hào)的產(chǎn)品。
I/O模塊的更換
若需替換一個(gè)模塊,用戶(hù)應(yīng)確認(rèn)被安裝的模塊是同類(lèi)型。有些I/O系統(tǒng)允許帶電更換模塊,而有些則需切斷電源。若替換后可解決問(wèn)題,但在一相對(duì)較短時(shí)間后又發(fā)生故障,那么用戶(hù)應(yīng)檢查能產(chǎn)生電壓的感性負(fù)載,也許需要從外部其電流尖峰。如果絲在更換后易被燒斷,則有可能是模塊的輸出電流超限,或輸出設(shè)備被短路。
PLC的故障診斷是一個(gè)十分重要的問(wèn)題,是保證PLC控制系統(tǒng)正常、可靠運(yùn)行的關(guān)鍵。本文對(duì)常用的故障診斷方法進(jìn)行了探討。在實(shí)際工作過(guò)程中,應(yīng)充分考慮到對(duì)PLC的各種不利因素,定期進(jìn)行檢查和日常維護(hù),以保證PLC控制系統(tǒng)安全、可靠地運(yùn)行。
24、以家為家,以鄉(xiāng)為鄉(xiāng),以國(guó)為國(guó),以天下為天下?!豆茏?牧民》
————————————————————
XYCOM XVME-505/2 I/O ANALOG MODULE ~ UsedSiemens Simatic S7 6ES7321-1BH01-0AA0 6ES7-321-1BH01
From Canada
GE FANUC IC693ALG223C IC693ALG223 ANALOG
XYCOM 4860-101KBD USPP 4860101KBD
FANUC Cable Linear Scale Kabel LX660-4077-T229/L2R003
From Canada
Panasonic servo reducer MSMA022A35 good in condition for industry use
From ThailandPepperl+Fuchs VariKont OJ2000+U1+E123 24791 OVP
GE FANUC A02B-0303-C205 SDUI NEW48680D TIMKEN New Bearings
XYCOM DIGITAL I/O MODULE VME CONTROL CARD XVME-202CPU Einheit GE304/B 25MHz
GE FANUC BOARD 44A397867-G01 44A397867G01 ANC1
panasonic servo motor MSMA041A1F 2 month warrantySiemens Signal Cable 6FX5002-2EQ10-1AA7 Neu
Pepperl+Fuchs N?herungsschalter Induktiv NBN4-12GM60
From Canada
386 TIMKEN New Bearings
XYCOM 819B7-101D USPP 819B7101DSiemens S7 6ES7193-4CB00-0AA0 6ES7-193-4CB00-0AA0
PANASONIC AC Servo Motor MSMA082C1B Free Ship
Cleco Pulse Nutsetter no. 140PTH25Q Cooper Tools West Germany 7/16" hex shank
Phoenix Contact Optokoppler ST-OV3-24DC/60DC/3 2903228 Neu
Cooper Tools 517943 Cylinder Asm
ALLEN BRADLEY 199-MSMA1 NSFP 199MSMA1
Siemens Simatic S5 6ES5451-4UA13 6ES5-451-4UA13
TIMKEN TORRINGTON BSBU40Q123H SUPER PRECISION BEARING
Xycom Operator Interface Panel CRT 9465 KPM 9465-217014003100Q _ 930032-14TFT
XYCOM 8430-0443338002111 USPP 84300443338002122MM9122WIDUM Timken Bearing
KISTLER Hochtemperatur Koax Kabel 1911ASP 15m FischerXYCOM XVME-428/1 USPP XVME4281
Siemens Memory 6FX1822-1BX01-2B
Allen Bradley: 700-MB400* w/ 199-MSMA1 & 195-MA40
29624 TIMKEN New Bearings
Siemens Schütz 4KW 400V 3RT1516-1AP00 3ZX1012-0RH11-1AA1 NEU
Xycom 2005 97958-021Ge FANUC BOARD A16B-1210-0270/?02A A16B-1210-0270
XYCOM/PROFACE 5017T TOUCHSCREEN INTERFACE ****XLNT****Siemens Leistungsschalter 2,4-4A 3VU1300-1MJ00 3VU13-00-1MJ00 NEU
FANUC Power Cable betw. PSA-SVM A660-2004-T116/L300R0AXYCOM PM101545 USPP PM101545
1984W TIMKEN New Bearings
R98375 Pro-Face XyCom 4115T w/ Opt 2000 - 256-XP Touchscreen PanelSiemens Relais 0,5W 24VDC 3TX7004-1AM00
GE FANUC A16B-3200-0070/?03A A16B-3200-0070 LR MATE
Siemens Hilfsschalterblock 3RH1911-1GA31 3ZX1012-0RH11-1AA1 NEU
Newly listedVintage Wooden Barn Pulley Old Farm Tool Hay Mow Loft Rustic1800lb Brewer/Cooper
FANUC ISA Extension Modul A02B-0236-J269 Neu C0018Siemens Simatic S7-200 Terminalmodul 6ES5193-4CD20-0AA0
Siemens Simatic S5 Verbindungskabel 6XV1440-2KH32 6XV1 440-2KH32 Neu
Schmersal bbbbbbbbsschalter mit Sicherheitsfunktion T1K 336-02Z-1496 Neu OVP
534 TIMKEN New Bearings
XYCOM XVME-530 NSPP XVME530
From Canada
LL319349 90010 TIMKEN New Bearings
Siemens Simatic S7 Terminal Module 6ES7193-4CB10-0AA0 6ES7-193-4CB10-0AA0 NEU
From Canada
特別聲明:以上內(nèi)容(如有圖片或視頻亦包括在內(nèi))為自媒體平臺(tái)“機(jī)電號(hào)”用戶(hù)上傳并發(fā)布,本平臺(tái)僅提供信息存儲(chǔ)服務(wù)
Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of JDZJ Hao, which is a social media platform and only provides information storage services.