描述
PLC是專門為工業(yè)生產(chǎn)環(huán)境而設(shè)計(jì)的控制設(shè)備。當(dāng)工作環(huán)境較為惡劣,如電磁干擾較強(qiáng)、濕度高、電源、輸入和輸出電路等易受到干擾時(shí),會(huì)使控制系統(tǒng)的可靠性受到影響。
1.1工作環(huán)境的要求
除了為特殊工作環(huán)境而設(shè)計(jì)的PLC外,一般PLC工作的環(huán)境溫度應(yīng)在0~55℃的范圍,并要避免太陽光直接照射;安裝時(shí)要遠(yuǎn)離大的熱源,保證足夠大的散熱空間和通風(fēng)條件;空氣的相對(duì)濕度應(yīng)小于85%,不結(jié)露,以保證PLC的絕緣良好。PLC應(yīng)避免安裝在有振動(dòng)的場(chǎng)所;對(duì)振動(dòng)源允許的條件則應(yīng)按照產(chǎn)品說明書的要求,安裝減振橡膠墊或采取其他防振措施??諝庵杏蟹蹓m和有害氣體時(shí),應(yīng)將PLC封閉安裝。
1.2電源的要求
不同的PLC產(chǎn)品,對(duì)電源的要求也不同,這里包括電源的電壓等級(jí)、頻率、交流紋波系數(shù)和輸入輸出的供電方式等。
對(duì)電磁干擾較強(qiáng)、而對(duì)PLC可靠性要求又較高的場(chǎng)合,PLC的供電應(yīng)與動(dòng)力供電和控制電路供電分開;必要時(shí),可采用帶屏蔽的隔離變壓器供電、串聯(lián)LC濾波電路等。在設(shè)計(jì)時(shí),外接的直流電源應(yīng)采用穩(wěn)壓電源,供電功率應(yīng)留有20%~30%的余量。對(duì)由控制器本身提供的直流電源,應(yīng)了解它所能提供的最大電流,防止過電流造成設(shè)備的損壞。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列
本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
OMRON G3PA-210B SOLID STATE RELAY
Lumonics Laser Interface SDT/EU Board PWB 2016047 REV A
RVSI 53115 REV K,61266 REV B,61263 REV A
CENTENT CNO165 HIGH RESOLUTION MICROSTEP DRIVE
FUJI 4800 VME-48316-32F Rev F Vision Processing Board
SUPER VEXTA UDK5128N 5-PHASE DRIVER
SunX DPX-410-IN Digital Pressure sensor
Sorensen DCS40-25E DC Power Supply 0-40V 0-25A
BERKELEY BXi 4 AXIS SERVO CONTROLLER BXi4/2-01-B
COGNEX VISION SYTEM IN-SIGHT-3400 Processor
ARCOM CONTROL PCIB40 40-Ch Digital I/O,Counter Board
Teknic SST-3000-829 Servo Drive M-5075-829 SERVO Motor
OMRON E5CS-Q1KJ TEMPERATURE CONTROLLER
WATLOW ANAFAZE CLS216 CONTROLLER
SunX DP2-42N Digital pressure Sensor
KEYENCE LX2-V10W PHOTOELECTRIC AMPLIFIER THRUBEAM LASER
OMRON H5F-KB Digital Daily 24hr Time Switch control
Omron Temerature Controller E5C3 WR20K E5C3-WR20K
FREE QUAD Ethernet Module p/n 110789
Watlow 989A-25CE-NERG Digital Temperature Controller
Lot of 2 Agilent 10467-68701 Microprobe set
CyberOptics PWA 5120218 Rev B Board
Agilent W2641A DisplayPort Test Point Access Adapter
Agilent U2122A 32I USB Digital I/O
CyberOptics PWA 5120089 Rev F Board
Intel D52657-303 PCIe Memory Expansion with 8GB FBDIMM
Agilent 86205A RF Bridge 50Ohm 300kHz to 6GHz
TAMAGAWA TBL-I SERIES AC SERVO MOTOR TS4509N3920E200
Omron Temperature Controller E5CN-R2MT-500 AC100-240V
MITUTOYO 10X/24 WIDEFIELD FOCUSING EYEPIECES 24mm
National Instruments NI SC-2062 8-Channel Relay Board
Lot of 2 MATSUSHITA NAIS FPO-C14RS PLC+FPO-E8RS
Advantech FPM-3150G-R 15 inch touch screen Flat Panel
Phoenix Contact MCR-SWS/U MCR-SWS Threshold Switch
Panasonic AC Servo Motor 1.0KW MSM102Q1C
FLOWLINE LR79326 ISOLATION RELAY LEVEL CONTROLLER
PRO-FACE GP37W2-BG41-24V TOUCHSCREEN GRAPHIC PANEL 24V
4 HP NC7170 Dual Port Gigabit Ethernet Card 313586-001
Yaskawa AC Servo Motor SGM-08AAF J12 750W 3000rpm
DELL Y8132 Poweredge 2950 Redundant PSU 750W N750P-S0
ADCOS VME-A100 K-100-VA
SONY SOMIC 68K VSP2 CAMERA/VIDEO CONTROLLER
Dell UF804 E1705 9400 M90 NVIDIA GeForce GO 7800″NEW”
Watec WAT-902B High Resolution CCD Camera
Omron S8VS-24024 10 Amp 24 VDC Power Supply
KEYENCE BL-185 BARCODE READER and BL-U2 POWER SUPPLY
MURR ELEKTRONIK 24V Power Supply MCS5-115-230/24 5A
Intel Core 2 Duo Mobile T9400 2.53Ghz/6MB/106?6
Teli CS3730DC+1X65 lens+V-27R+Camera Holder
Watec WAT-505EX VISION CAMERA
Intel Core 2 Duo Mobile T7500 2.20Ghz/4MB/800
BOECKELER 1398 DIGITAL MICTROMETER POSITIONER HEAD
Agilent E2078-62101 CONN EXT HPIB GPIB Adapter
PowerCore CPCI-3750 Single Board CompactPCI?Computer
Symbol P370 P470 Cordless Scanner PS/2 cable P 370
Symbol P370 P470 Cordless USB Barcode Scanner Kit
MITUTOYO AT112 Linear Scales AT112-120 AT112-50
COGNEX IN-SIGHT 3400 ISS-3400-0 REV G with Full cable
Quickpanel Pro-Face GP370-LG21-24VP Touchdisplay
CISCO 10G BASE SR XENPAK TRANSCEIVER Module 10GB-SR
Opto 22 Classic Mistic G4LC32SXA Controller Processor
ZHONE MALC-G SHDSL-24
BK3110 KL1104 KL2134 DEVICENET BUS TERMINAL
FUJI TEAC TD-320A DIGITAL INDICATOR CONTROLLER
NEW HP 75000 Series C VT 1563A 800kSa/a 2 Ch Digitizers
AGILENT N2269A DAC 16-BIT DIG I/O MULTIFUNTION MODULE
Lot of 2 HP 10705A INTERFEROMETER 10704A RETROREFLECTOR
BALDOR ASR SERIES BTS10-5/10-24-R?L-708 SERVO DRIVE
MITUTOYO LGB-110S LINEAR GAGE 542-401
MOTOROLA MCP750 VME Processor Module
SBS Technologies CP 6212 Universal Serial I/O
FORCE POWERCORE CPCI-690 CPCI 690 COMPACT PCI
Whedco DSP Motion Control IMJ-313E-X-D MTR-3N31 Motor
Galil 3-AXIS Motion Controller DMC-1030 DMC1030
FORCE POWERCORE CPCI-680 COMPACTPCI
COMPAQ 70-40453-01 U320 SCSI Bus I/O Controller
Dell 5U104 ATI VGA 64MB for Inspiron 5100 5150
SIEMENS 228246 card 210400 rev-f with 208000 rev-g
PEPPERL&FUCHS KFD2-SOT-EX2 Isolated Switch Amp qty=2
OMRON SYSMAC C60P Programmable Controller C60P-CDR-AE