描述
(2)安装与布线
●动力线、控制线以及PLC的电源线和I/O线应分别配线,隔离变压器与PLC和I/O之间应采用双胶线连接。将PLC的IO线和大功率线分开走线,如必须在同一线槽内,分开捆扎交流线、直流线,若条件允许,分槽走线最好,这不仅能使其有尽可能大的空间距离,并能将干扰降到最低限度。
●PLC应远离强干扰源如电焊机、大功率硅整流装置和大型动力设备,不能与高压电器安装在同一个开关柜内。在柜内PLC应远离动力线(二者之间距离应大于200mm)。与PLC装在同一个柜子内的电感性负载,如功率较大的继电器、接触器的线圈,应并联RC消弧电路。
●PLC的输入与输出最好分开走线,开关量与模拟量也要分开敷设。模拟量信号的传送应采用屏蔽线,屏蔽层应一端或两端接地,接地电阻应小于屏蔽层电阻的1/10.
●交流输出线和直流输出线不要用同一根电缆,输出线应尽量远离高压线和动力线,避免并行。
(3)I/O端的接线
输入接线
●输入接线一般不要太长。但如果环境干扰较小,电压降不大时,输入接线可适当长些。
●输入/输出线不能用同一根电缆,输入/输出线要分开。
●尽可能采用常开触点形式连接到输入端,使编制的梯形图与继电器原理图一致,便于阅读。
输出连接
●输出端接线分为独立输出和公共输出。在不同组中,可采用不同类型和电压等级的输出电压。但在同一组中的输出只能用同一类型、同一电压等级的电源。
●由于PLC的输出元件被封装在印制电路板上,并且连接至端子板,若将连接输出元件的负载短路,将烧毁印制电路板。
●采用继电器输出时,所承受的电感性负载的大小,会影响到继电器的使用寿命,因此,使用电感性负载时应合理选择,或加隔离继电器。
●PLC的输出负载可能产生干扰,因此要采取措施加以控制,如直流输出的续流管保护,交流输出的阻容吸收电路,晶体管及双向晶闸管输出的旁路电阻保护。
欧美品牌停产的,常用的“PLC”备品备件
我司产品应用于以下领域:
1,《发电厂DCS监控系统》
2,《智能平钢化炉系统制造》
3,《PLC可编程输送控制系统》
4,《DCS集散控制系统》
5,《智能型消防供水控制系统》
6,《化工厂药液恒流量计算机控制系统》
7,《电气控制系统》造纸,印染生产线,变电站综合自动化控制系列
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MKS 146B 4 Channel MFC Gas Mass Flow Controller 146 B
Comet Mini Vacuum Capacitor 15kV 210pF MC1C-210 E/15
Advanced Energy AE RFG 2000-2V RF Generator 3155053-007
Leybold Ionivac High Vacuum Ion Gauge Controller IM110D
Leybold Turbovac TMP 50 High Vacuum Turbo Pump ISO 100
MKS 2 Torr Baratron Pressure Transducer 122BA-00010EB
MDC High Vacuum Gate Valve NW KF QF 50 KGV-2000V-P-03
Nor-Cal High Vacuum Isolation Valve conflat 221-921-900
Lot of 6 Fujikin Gas Flow Control Valves 2 manifolds
Advanced Energy PDX900-2V RF Generator AMAT 3156024-110
Spellman High Voltage Power Supply Pre Load RSB40X3995
Kaiser KSI High Voltage Power Supply+1 kV 1A S1-1-1000
Varian High Voltage Surge Suppressor E11029161 Edal HVR
AE Advanced Energy RFG 1251 RF Generator 3155107-001 B
AE Advanced Energy RFX 2500 RF Generator 3155011-000
Advanced Energy Apex 3013 RF Plasma Generator 3kW AE
RFPP RF5S RF Generator RF 5S Plasma Advanced Energy AE
Glassman+5 kV 20mA High Voltage Power Supply HV
Trazar Paralax Igniter RF Generator 27MHz 1200W IG270
MKS 146C Vacuum Gauge Measurement Control System 146 C
Varian Turbo V 300 ICE MacroTorr High Vacuum Turbo Pump
AMAT 8330 Micro-Match RF Matching Network 0010-00799
NEW RFPP Advanced Energy Harmonic Filter 1 kW 350kHz AE
Advanced Energy AE RFG/AZX Control Panel 3155050-000A
Eaton Ion Implanter Surge Protection Bd 1504260 HV kV
Applied Materials 8100 D System DC Power Supplies AMAT
AMAT Applied Materials MXP+RF Match Network Tuner
AMAT Applied Materials MXP+RF Match Network Tuner
Advanced Energy AZX63 RF Match 3155031-014 AMAT
AE Advanced Energy APEX 3013 RF Generator AMAT Working
Applied Materials AMAT CVD RF Match 0010-9750W Tested
Advanced Energy AE GenCal RF Power Head PMH 400/2200
Glassman KL High Voltage Power Supply-30 kV 100mA
RFPP Advanced Energy RF 10S Power Amplifier MRF150 NEW
Hitek Hivolt High Voltage Power Supply-30 kV 1kW HV
LAM Research 13.56MHz RF Match Network Kiyo Poly Etch
NEW Astech ATL-100RA LF RF Match Network 500W RFPP AE
Applied Materials RF Match Phase 4 AMAT P/N 0010-09416
BOC Edwards EPX 180L Dry Molecular Vacuum Pump Tested
Advanced Energy AE HTCM RF Match AZX Control Module
Leybold Turbovac 450 Turbo Pump NT450 w/Cable,Rebuilt
AE Advanced Energy AZX90 RF Match 3155031-011B AMAT
Varian Turbo V 301 Navigator Control Unit 9698973
Systron Donner M107 Precision DC Voltage Source Tested
Dressler Advanced Energy ProSys Mega Pulse RF Generator
Applied Materials Ion Implanter Arc Control DSP
Advanced Energy AE Multifunction RF Match 3156035-100
AE Advanced Energy LF-10A 1000W Generator 3150010-001E
ADVANCED ENERGY AE-4855015 USPP AE4855015
AE Advanced Energy RFDS 2000-2V RF Gen.3155038-013 2kW
AE Advanced Energy MDX-L6 Magnetron 3152343-000A
AE Advanced Energy RF10M RF20M User Manual 5708513 NEW
AE Advanced Energy MDX-5K Power Supply 2011-035-Y 5kW
AE Advanced Energy RFDS 2000-2V RF Gen.3155038-013C
AE RFPP Advanced Energy LF-5 500W Generator 3150012-009
AE Advanced Energy 3152334-000B AMAT Applied Materials
AE Advanced Energy PDX 1250 RF Generator 3156024-131A
AE Advanced Energy MDX-20K Master 3152223-003-Y 20kW
AE Advanced Energy Navigator 1013 RF Match 3155126-017A
AE ADVANCED ENERGY CABLE
AE Advanced Energy RFPP LF-5 Generator 7520572050 500W
AE Advanced Energy RF Match Network 3155031-014D
AE Advanced Energy PDX 1250 RF Generator 3156024-131A
AE ADVANCED ENERGY PDW2200 RF GENERATOR
AE Advanced Energy RFPP RF Match 7621993020 working
AE Advanced Energy 2500W RF Match 3150275-007G working