描述
triconex3721
二位控制
这是最简单的反馈控制，有时也叫开关控制。这种控制是当被测量达到最高值或最低值的时候，就给出一个开关的信号。虽然被测量可能是模拟量，但控制输出是开关的，所以叫两位控制。在工业现场，有许多温控器和液位开关控制是采用这种方式的。
比例控制
控制器的输出值与被控参数的测量值和设定值或某个参考点的偏差是一个比例关系。比例控制比二位控制要平滑一些，消除了二位控制时会产生的被控量上下振荡的情形。比如，对一个反应罐的液位，如果设定的液位值是2700毫米，当液位降低时，进料管道上的阀门就要增加开度，而液位偏高时，则要将开度减小。增加和减小的比例与液位和设定值的偏差大小成比例关系。
积分控制
在积分控制中，被控变量的值的变化与控制系统输出控制到实际生效的时间有一个预先设定的关系。执行机构的输出是渐渐地达到设定的值的。这种控制方式的产生是由于实际的控制元件和执行机构从给出输出信号到使被控变量达到设定值往往需要一段时间。
最常见的例子是温度控制，比如，假定我们知道到煤气阀门的开度到60%的时候，热水器的水温能够达到适宜洗澡的45度，但是，当你把阀门一下子拧到60%的位置时，水依然是凉的，你必须等一下，水温升到45度左右的时候，就会稳定。如果控制系统不用积分控制，而只用比例控制，那么当阀门输出为60%时，这是输入的温度值可能依然只有20度，那么按照比例控制，既然偏差依然存在，则阀门的开度会继续加大，这样，当水温升到45度时，阀门的开度可能会达到了90%甚至更高，这时，虽然控制系统会通知阀门保持不动，但水温会继续升高，可能到了50甚至60度，这时，阀门的开度会减小，但在减小到60%之前，水温都会继续上升，当阀门开度减到60%时，水温依然可能70度，一直当阀门的开度变成20%时，水温才会变成45度，这时阀门运动会停止，但水温却会继续下降，直到变成凉水，如果这时是冬天，可能你的情形还要糟糕。这就是没有积分控制的温度控制器会发生的情况。如果你有小孩，当孩子第一次操作热水器的阀门的时候，发生的情形就很像这种情况。
微分控制
微分控制通常与比例和积分控制同时使用，由于积分控制有一个滞后，微分控制可以让控制对偏差的反应提前，以免控制系统的反应过于迟钝。微分控制与比例和积分控制同时使用，可以使被控状态更迅速地达到稳定状态，而又不会出现上文出现的振荡现象。
PID 控制
在实际的控制系统中，根据实际变量的情况，上述三种控制方式有时只有一种，有时是两种，有时三种同时采用。比例控制用P表示，积分控制用I表示，微分控制用D表示，根据采用的方式，分别称为P控制，PI控制，PID控制。其中，PID控制是控制系统最常见的控制模式。
产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌：ABB ,AB ,GE,FOXBORO,本特利，英维思，伍德沃德，西屋，瑞恩，施耐德，西门子，摩托罗拉，安川。力士乐。ACSO，横河等进口品牌。 专业销售进口DCS PLC系统备件模块
Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA 专业销售进口DCS PLC系统备件模块 15天包退换 一年质保 大量现货 国内实力库存商家
AC LINE FILTER, TRI-MAG.Inc. SF-1579 – REFURBISHED
CONTROLLER NOVELLUS 270019800 – REFURBISHED
CONTROLLER NOVELLUS 27017400 – REFURBISHED
HV GATE VALVE VAT DN100 PNEUMATIC SERIES 14
POWER SUPPLY ASTEC LPS 252 – REFURBISHED
PRINTED CIRCUIT BOARD, AMAT 0100-09099 – REFURBISHED
PRINTED CIRCUIT BOARD, AMAT 0100-35180 – REFURBISHED
PRINTED CIRCUIT BOARD, AMAT 0100-76258 REV. B
TRANSDUCER VIATRAN 376 – NEW
VACUUM VALVE, MKS 253B-2-50-2, Exhaust throtte valve
VACUUM VALVE, MKS, Exhaust throtte valve, KF50
VACUUM GAUGE CONTROLLER GRANVILLE-PHILLIPS 375
STYLET FASTPOINT FX-439 DELUXE 707-439-00-02
SET OF 3 VIEWPORTS 716-011533-001 – NEW
PRINTED CIRCUIT BOARD APPLIED MATERIALS 0100-0953 REV.C
POWER SUPPLY APPLIED MATERIALS 0010-09181
FILTER ENTEGRIS WGFG01RH2 WAFERGARD – NEW
CONTROLLER MINARIK RG310UA – REFURBISHED
AIR BLOWER ASML 4022.436.2563 3D – REFURBISHED
Osaka Vacuum TG370M Turbopump / Pompe turbo UNTESTED
INVERTER APC UPS MATRIX 3000 – REFURBISHED
TRACOPOWER TSL240-124 POWER SUPPLY – TESTED
FILTER PENTEK WATER 145722 SET OF 4 – NEW
FLOWMETER DWYER INSTRUMENTS VFA-25-SSV – REFURBISHED
FLOWMETER DWYER INSTRUMENTS VFC-131 – REFURBISHED
LAMP DRIVER PHASETRONICS P1038A – REFURBISHED
SENSOR OMRON Z4W-V25R – REFURBISHED
TURBOMOLECULAR PUMP ALCATEL ATP 150 – NEW
VACUUM MANOMETER MKS 122BA-00100EB ( 100 TORR )
VACUUM MANOMETER TYLAN CMLB-21 (100 Torr) – REFURBISHED
CONVECTRON PIRANI VAC GAUGE GRANV-PHILLIPS 275 SET OF 3
CONTROLLER MKS 652D-BB – REFURBISHED
CONTROLLER MILLIPORE AC2 VALVE CONTROLLER – REFURBISHED
PUMPING SYSTEM LEYBOLD WA501 / D65BC – REFURBISHED
HV GATE VALVE VAT P/N:14036-PE44 – NEW
KSA400P KYOSAN POWER SUPPLY PN 97060572A01- REFURBISHED
UTI, ASSY Console QualiTorr Remote QTRT P/N: 05801
UTI QualiTorr Remote, Vac System Controller, 05506-2000
ALCATEL MANOMETER CN111 85407 – REFURBISHED
ELECTRONIC BOARD – TESTED
PRECISION BALL SCREW W1205KA-3P-C5Z P/N:07H9-0014 – NEW
LEYBOLD RUVAC WS501 PFPE US ROOTS VACUUM PUMP -PN 91737
PROCESS-KIT AMAT DCVD-LH 6″ TEOS – REFURBISHED
SET OF 2: SPACER, ARDEL, C&D PH2 – NEW
SUSC ASSY T2 WELDED, 150M – NEW
SWITCH ASSY. OZONATOR 42 PSI – NEW
GAS RING SMALL HOLES&CHANNELS – NEW
SHIELD 0200-09121 – REFURBISHED
POWER SUPPLY SVG 88 – REFURBISHED
HOST COMPUTER INTERFACE UNIT SVG – REFURBISHED
ROBOT SVG 88 ROBOT ARM – REFURBISHED
SVG 8836 HOT PLATE – REFURBISHED
PERF. PLATE 150MM BW, AMAT 0020-30406 – NEW
RF GENERATOR ENI OEM-25A – REFURBISHED
SVG CHILL PLATE – REFURBISHED
ROBOT SVG 88 ROBOT ARM (little arm) – REFURBISHED
ROBOT SVG 88 LOADER – REFURBISHED
MOTION CONTROLLER PACIFIC SCIENTIFIC SC453
RING,WAFER LIFT RP 0020-09844/0020-09183 – NEW
PLATE QUARTZ DIST UPPER ASP – REFURBISHED
DOOR, SLIT VALVE, “S” – NEW
SET OF 2: PLATE, CAM SLIT VALVE – NEW
PRINTED CIRCUIT BOARD AMAT 0100-00011 CHOPPER DRIVE
COATED THERMOCOUPLE (8.5″ Lg) W – NEW
POWER SUPPLY POWER ONE HD24-4.8-A SET OF TWO IDENTICALS
VALVE CONTROLLER VACUUM GENERAL AC-2 ADAPTORR
THROTTLE VALVE VACUUM GENERAL MDV-018 – REFURBISHED
VALVE CONTROLLER TYLAN AdapTorr AC-2S06 – REFURBISHED
THROTTLE VALVE TYLAN MDVX-100BS11 – REFURBISHED
THROTTLE VALVE VACUUM GENERAL MDV-100B – REFURBISHED
SET OF TERMINAL UNITS BECKHOFF – NEW
SMC SOLENOID VALVE MANIFOLD – USED
CARRIER,8″ W/FLEX APPLIED MATERIALS – NEW
RF SWITCH HUTTINGER ELEKTRONIK 1500A – REFURBISHED
RECTANGULAR VALVE VAT A-370333 – REFURBISHED
MATCH BOX HUTTINGER ELEKTRONIK PFM 1500A – REFURBISHED
GAS DIST.PLATE,101 HOLES APPLIED MATERIALS – NEW
P/N : 0020-31492
Enlarge
ASYST TEACH PENDANT ROBOT CONTROLLER 8045R2
ANGLE VALVE VAT PNEUMATIQUE ALU DN40 – REFURBISHED
TELEMECANIQUE ABE7 INPUT – REFURBISHED
POWER SUPPLY MDP FIRST DC 1Q 50/5 – REFURBISHED
SET OF 5 SWILL WAFER SUPPORT PIN-ENP PN 0200-00581 -NEW
SET OF 14 SWILL COOLDOWN PEDESTAL WAFER SUP – NEW
SET OF 39 SHAFT CLAMP WALKING BEAM PN 0021-79131 – NEW
SET OF 6 SENSOR STEM 6″TITAN HEAD P/N: 0021-77458 – NEW
SET OF 5 SENSOR PLATES – PN 0021-79994 – NEW
SET OF 13 SEAL LIP FLG 625ID – PN 3700-02893 -NEW
SET OF 18 SCR CAP SKT/SLOT 0190-77220 – NEW
SET OF 2 PIN CAP – PN 0021-77267 – NEW
SET OF 3 KAPTON PAD QUARTZ BLADE 300MM PN 0020-15950
SET OF 17 ORING ID 10.178 CDS.112.SILICONE 3700-02952
SET OF 9 CAP BEARINGS 300MM ROBOT AMAT P/N: 0020-06885
0010-14390 AMAT BRUSH MODULE EXTENDED ROLLER- NEW
HIGH VOLTAGE POWER SUPPLY BHK500-80MG – REFURBISHED
ALCATEL PTM5101 TURBO CERAMIC PUMP – REFURBISHED
MINI VACUUM PRESSURE SWITCH 41A11DGA2AA002 -REFURBISHED
TURBO PUMP CONTROLLER CFV900 – REFURBISHED
VALVE VERIFLO 944L. NEW
GAS PRESSURE REGULATOR TESCOM 44-2361-T9-051 – NEW
90 DEGREES VACUUM ELBOW ISO100-KF – REFURBISHED
90 DEGREES VACUUM ELBOW ISO160-KF – REFURBISHED
MURR SWITCH MODE POWER SUPPLY MPS20-230/24 SINGLE PHASE
VALVE VERIFLO 928L. NEW
VALVE SET VAT 77369-R8. NEW FAB SURPLUS
VALVE RK INDUSTRIES TDD-1002-T1. NEW FAB SURPLUS
VACUUM PARTS FLEXIBLE NIPPLE – NEW
A&N CORPORATION P/N: LF63-300-F
VACUUM PARTS BELLOW V4 – NEW
VACCUM CAPACITOR 20-500PF 15KV. REFURBISHED
UPPER ARM 200 MM – NEW
SET OF 5 FLANGE BALL BEARING SFR188SSW- NEW
ROPLAT PAWL HARD STOP. NEW FAB SURPLUS
PRESSURE REDUCING GAUGE VERIFLO PARKER NPR73530W4PXFSM
MIROIR PLAN FOR LASER EXERCICE – NEW
CVI LASER CORPORATION P/N: KRF-3050-45-P
KALREZ O-RING ORNG082E00299 – NEW
HOLDER, 8” WAFER – NEW FAB SURPLUS
DC MOTOR ASS AG-SCHWEIZ 84031-R1 – REFURBISHED
CONVERSION SET 3200251 TO 3200409 – NEW FAB SURPLUS
CABLE FOUR CASSETTE SHIFFTER. NEW FAB SURPLUS
CABLE ASSY ROTARY DRIVE ENCODER. REFURBISHED
ANGLE VALVE MKS PNEUMATIC DN25. REFURBISHED
CENTRAL PROCESSING UNIT RACK 19″ – TESTED
VACUUM MANOMETER MKS 628B02TBE1B (2 Torr) – REFURBISHED
DRIVELINE POLISH HEAD SPEEDFAM-IPEC 0770-700183
PTM5081 – TURBOMOLECULAR PUMP
TPU 060 – TURBOMOLECULAR PUMP
90 DEGREES VACUUM ELBOW ISO63-KF – REFURBISHED
PRESSURE REGULATOR APTECH BP1006SM 2PW 0M/10 – NEW
BRAKE INTERCONNECT, AMAT, 0100-09076 REV D
VACUUM MANOMETER ALCATEL FA111 – REFURBISHED
MASS FLOW CONTROLLER UNIT UFC-1100 Gas:O2 Range:100Sccm
MASS FLOW CONTROLLER UNIT UFC-1100 Gas:O2 Range:10Sccm
ALCATEL RSV1000 ROOTS VACUUM PUMP – REFURBISHED
SCHNEIDER ELECTRIC MODICON TSX MICRO – REFURBISHED
ROOTS VACUUM PUMP ALCATEL RSV 300 – REFURBISHED
TURBOMOLECULAR PUMP ALCATEL 5402 CP – REFURBISHED
SIC RING E55539 – NEW
PRINTED CIRCUIT BOARD AMAT 0100-09107 REV E – NEW
PRINTED CIRCUIT BOARD APPLIED MATERIALS 0100-09106- NEW
ANGLE VALVE DN25 BALZERS EVA025PA – REFURBISHED
CONTACTOR TELEMECANIQUE LC1D50 (LP1 D5011) – SET OF 2
CONTACTOR TELEMECANIQUE LCD1D25BD – SET OF 2 – USED
CONTACTOR TELEMECANIQUE LC1D09BD – SET OF 2 – USED
PNEUMATIC AIR CYLINDER SMC CDM2B20-100A – REFURBISHED
BLACK CARTER IPEC CMP676 NOVELLUS IPEC-1 – REFURBISHED
REMOTE WIRING DISTRIBUTION, AMAT, 0100-09126 REV B
THERMOELEMENT BALZERS – USED
SET OF 2 AIR LIQUIDE REGULATORS – USED
PRESSURE REGULATOR MANOMETER AIR LIQUIDE DIRS N°6
HIGH PRESSURE REGULATOR TESCOM 44-226X-242 – set of 2
CENTRIFUGE FSI PHOENIX P/N: 901111-001 – REFURBISHED
CROSS ISOLATION VACUUM NOR-CAL 3870-01212 – REFURBISHED
专业销售进口DCS PLC系统备件模块
PLC模块，可编程控制器，CPU模块，IO模块，AI模块，通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗
15天包退换 一年质保 大量现货 国内实力库存商家
18150087953 点击拨打电话联系我们