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费斯托比例压力调节器MPPE MPPES说明书

费斯托比例压力调节器MPPE MPPES说明书

Proportional pressure regulators MPPE/MPPESProduct range overview1)Pressure regulation range also by customer request2 Internet:/catalogue/...Subject to change–2010/062010/06–Subject to change 3Internet:/catalogue/...Peripheralsoverview49AccessoriesTypeBrief descriptionPage/Internet 1Proportional pressure regulator MPPES Directly controlled 102Proportional pressure regulator MPPES Indirectly controlled 103Proportional pressure regulator MPPE –54Setpoint module MPZ MPZ For generating 6+1analogue voltage signals 145Digital input/output –For controlling the setpoint module –6Connecting cable KVIA-MPPE –147Plug socket with cable KMPE-B –8Angled socket MPPE-3-B –9Push-in fitting QS For connecting compressed air tubing quick star aJSilencerUFor fitting in exhaust portsuType codesBasic versionMPPE—3—x—1—010—BTypeMPPE Proportional pressure regulatorwith switching valve headValve function33-way pressure regulatorPneumatic connectionx Female thread G x¼Female thread G¼½Female thread G½Pressure regulation range10…1bar2,50…2.5bar60…6bar100…10barAnalogue setpoint input0100 (10V)4204…20mAGenerationB B seriesSpecial pressure regulation range by customer requestMPPE—3—x—2—4—010—BTypeMPPE Proportional pressure regulatorwith switching valve headValve function33-way pressure regulatorPneumatic connectionx Female thread G x¼Female thread G¼½Female thread G½Required pressure at0V or4mA[bar]Required pressure at10V or20mA[bar]Analogue setpoint input0100 (10V)4204…20mAGenerationB B series4 Internet:/catalogue/...Subject to change–2010/062010/06–Subject to change 5Internet:/catalogue/...Technical dataFlow rate350…8,800l/minVoltage18…30V DC-L-Pressure regulation range 0…1bar 0…2.5bar 0…6bar 0…10barVariants•Setpoint input as analogue voltage signal 0 (10V)•Setpoint input as analogue current signal 4…20mAMPPE-3-…-BGeneral technical data Pneumatic connection G x G ¼G ½DesignPilot-actuated piston regulator Sealing principle Soft Actuation type ElectricalType of control Pilot-actuated via 2/2-way valves Type of mounting Via through-hole Mounting position Any Nominal sizePressurisation [mm]5711Exhaust[mm]5712Standard nominal flow rate [l/min] Graphs Product weight[g]7109202,400Flow rate qn as a function of output pressure p2Pneumatic connection G xPressure regulation range 0…1barPressure regulation range 0…2.5barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]Pressure regulation range 0…6barPressure regulation range 0…10barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]Subject to change –2010/066 Internet:/catalogue/...Technical dataFlow rate qn as a function of output pressure p2Pneumatic connection G ¼Pressure regulation range 0…1barPressure regulation range 0…2.5barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]Pressure regulation range 0…6barPressure regulation range 0…10barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]Pneumatic connection G ½Pressure regulation range 0…1barPressure regulation range 0…2.5barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]Pressure regulation range 0…6barPressure regulation range 0…10barqn [l/min]p 2[b a r ]qn [l/min]p 2[b a r ]2010/06–Subject to change7Internet:/catalogue/...Technical dataOperating and environmental conditions Pressure regulation range [bar]0...10...2.50...60 (10)Operating medium Filtered compressed air,lubricated or unlubricated,grade of filtration 40µm,neutral gases Supply pressure 1[bar] 1.5…2 3.5…4.57…811…12Max.pressure hysteresis [mbar]30404050Ambient temperature [°C]0…50Temperature of medium [°C]0…60Corrosion resistance class[CRC]21)*1)Corrosion resistance class 2according to Festo standard 940070Components subject to moderate corrosion stress.Externally visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment or media such as coolants or lubricating agents.Electrical dataPressure regulation range [bar]0...10...2.50...60 (10)Electrical connection Plug,round design to DIN 45326,M16x 0.75,8-pin Operating voltage rangeU B [V DC]18…30Residual ripple 10%Power consumption P max.[W] 3.6(at 30V DC and 100%duty cycle)Setpoint input signal Voltage V w [V DC]0…10p p g Current I w [mA]4…20Actual value output signal Voltage V x [V DC]0…10p g Current I x [mA]4…20Actual value input signal,Voltage V x,ext.[V DC]0…10p g ,externalCurrentI x,ext.[mA]4 (20)Protection class to DIN 60529IP65(with connection socket)Safety noteIn the event of a broken supply power wire or setpoint wire,output pressure remains and is uncontrolled.In the long-term,leakage results in pressure drop.Reverse polarity protectionSetpoint input,voltage signal 0…10V For all electrical connections Setpoint input,current signal 4…20mAFor operating voltageProtection against short circuit Yes,for the types with voltage signal as setpoint inputMaterials Housing Wrought aluminium alloy Seals NBRConnection D1B B1@D H H1H2H3H4H5H6L L1G x 38– 4.5129.1119.160.218.826.89.346234G ¼4838 4.5140.7130.763.625.334.813.856230G ½76387194.6184.6117.5537432188650Technical dataPin allocation Switching function1WH X ext,in(external actual value input) 2BNGND 3GNGND4YE W in(setpointinput)5GY10V out(external potentiometersupply)6PK X out(actual valueoutput)7RD24V DC(supply voltage)8BU GNDOrdering dataPneumatic connection Pressure regulationrangeVoltage type0…10V Current type4…20mA[bar]Part No.Type Part No.TypeBasic versionG0…1161160MPPE-3-1/8-1-010-B161163MPPE-3-1/8-1-420-Bx0…2.5164315MPPE-3-1/8-2,5-010-B164316MPPE-3-1/8-2,5-420-B0…6161161MPPE-3-1/8-6-010-B161164MPPE-3-1/8-6-420-B0…10161162MPPE-3-1/8-10-010-B161165MPPE-3-1/8-10-420-BG0…1161166MPPE-3-1/4-1-010-B161169MPPE-3-1/4-1-420-B¼0…2.5164317MPPE-3-1/4-2,5-010-B164318MPPE-3-1/4-2,5-420-B0…6161167MPPE-3-1/4-6-010-B161170MPPE-3-1/4-6-420-B0…10161168MPPE-3-1/4-10-010-B161171MPPE-3-1/4-10-420-BG0…1161172MPPE-3-1/2-1-010-B161175MPPE-3-1/2-1-420-B½0…2.5164319MPPE-3-1/2-2,5-010-B164320MPPE-3-1/2-2,5-420-B0…6161173MPPE-3-1/2-6-010-B161176MPPE-3-1/2-6-420-B0…10161174MPPE-3-1/2-10-010-B161177MPPE-3-1/2-10-420-BSpecial adaptation type1)G x0…10164330MPPE-3-1/8-…-…-010-B1)164330MPPE-3-1/8-…-…-420-B1)G¼0…10164331MPPE-3-1/4-…-…-010-B1)164331MPPE-3-1/4-…-…-420-B1)G½0…10164332MPPE-3-1/2-…-…-010-B1)164332MPPE-3-1/2-…-…-420-B1)1)The special adaptation type allows a lower pressure to be assigned to the setpoint0V or4mA and an upper pressure to be assigned to the setpoint10V or20mA.Upper and lower pressure by customer request.Subject to change–2010/06 8 Internet:/catalogue/...Type codesBasic versionMPPES—3—x—1—010TypeMPPES Proportional pressure regulatorwith proportional solenoidValve function33-way pressure regulatorPneumatic connectionx Female thread G x¼Female thread G¼½Female thread G½Pressure regulation range20…2bar60…6bar100…10barAnalogue setpoint input0100 (10V)4204…20mASpecial pressure regulation range by customer requestMPPES—3—x—2—4—010TypeMPPES Proportional pressure regulatorwith proportional solenoidValve function33-way pressure regulatorPneumatic connectionx Female thread G x¼Female thread G¼½Female thread G½Required pressure at0V or4mA[bar]Required pressure at10V or20mA[bar]Analogue setpoint input0100 (10V)4204…20mAInternet:/catalogue/...2010/06–Subject to change9Subject to change –2010/0610 Internet:/catalogue/...Technical dataFlow rate230…8,500l/minVoltage18…30V DC-L-Pressure regulation range 0…2bar 0…6bar 0…10barVariants•Setpoint input as analogue voltage signal 0 (10V)•Setpoint input as analogue current signal 4…20mAMPPES-3-x -…MPPES-3-¼-…MPPES-3-½-…General technical data Pneumatic connection G xG ¼G ½DesignDirectly actuated piston regulator Pilot-actuated piston regulatorSealing principle Soft Actuation type ElectricalType of mounting Via through-hole Mounting position Any Nominal sizePressurisation [mm]3711Exhaust[mm]2712Standard nominal flow rate [l/min] Graphs Product weight[g]9151,3102,670Flow rate qn as a function of output pressure p2Pneumatic connection G xPressure regulation range 0…2barPressure regulation range 0…6barqn 1→2[l/min]p 2[b a r ]qn 1→2[l/min]p 2[b a r ]Pressure regulation range 0…10barqn 1→2[l/min]p 2[b a r ]2010/06–Subject to change 11Internet:/catalogue/...Technical dataFlow rate qn as a function of output pressure p2Pneumatic connection G ¼Pressure regulation range 0…2barPressure regulation range 0…6barqn 1→2[l/min]p 2[b a r ]qn 1→2[l/min]p 2[b a r ]Pressure regulation range 0…10barqn 1→2[l/min]p 2[b a r ]Pneumatic connection G ½Pressure regulation range 0…2barPressure regulation range 0…6barqn 1→2[l/min]p 2[b a r ]qn 1→2[l/min]p 2[b a r ]Pressure regulation range 0…10barqn 1→2[l/min]p 2[b a r ]Technical dataOperating and environmental conditionsPressure regulation range[bar]0...20...60 (10)Operating medium Filtered compressed air,lubricated or unlubricated,neutral gasesSupply pressure1[bar]3...47...811 (12)Max.pressure hysteresis[mbar]105050Ambient temperature[°C]0 (50)Temperature of medium[°C]0 (60)Corrosion resistance class CRC21)*1)Corrosion resistance class2according to Festo standard940070Components subject to moderate corrosion stress.Externally visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment or media such as coolants or lubricating agents.Electrical dataPressure regulation range[bar]0…20…60…10Electrical connection Plug,round design to DIN45326,M16x0.75,8-pinOperating voltage range U B[V DC]18 (30)Residual ripple10%Power consumption P max.[W]20(at30V DC)Setpoint input signal Voltage V w[V DC]0 (10)p p gCurrent I w[mA]4 (20)Actual value output signal Voltage V x[V DC]0 (10)p gCurrent I x[mA]4 (20)Protection class to DIN60529IP65(with connection socket)Safety note Output pressure is not maintained if the power supply cable is interruptedReverse polarity protection Setpoint input,voltage signal0 (10V)For all electrical connectionsSetpoint input,current signal4…20mAFor operating voltageProtection against short circuit Yes,for the types with voltage signal as setpoint inputMaterialsHousing Wrought aluminium alloySeals NBRSubject to change–2010/06 12 Internet:/catalogue/...2010/06–Subject to change 13Internet:/catalogue/...Technical dataConnection D1B B1@D H H1H2H3H4H5H6L L1G x 77.167.1 4.4116.51005534452346234G ¼82.172.1 4.5170.2153.763.725.334.813.856230G ½96.186.17227.1210.6120.6537432188650Connections Switching function Pin allocationMPPES-3-x -…MPPES-3-¼-…/MPPES-3-½-…1WH n.c.2BNGND 3GNGND4YE W in (setpoint input)5GY n.c.6PK X out (actual value output)7RD 24V DC (supply voltage)8BUGNDOrdering dataPneumatic connectionPressure regulation range Voltage type 0…10V Current type 4…20mA [bar]Part No.TypePart No.TypeBasic version G 0…2187350MPPES-3-x -2-010187351MPPES-3-x -2-420x0…6187352MPPES-3-x -6-010187353MPPES-3-x -6-4200…10187348MPPES-3-x -10-010187349MPPES-3-x -10-420G 0…2187335MPPES-3-¼-2-010187336MPPES-3-¼-2-420¼0…6187337MPPES-3-¼-6-010187338MPPES-3-¼-6-4200…10187333MPPES-3-¼-10-010187334MPPES-3-¼-10-420G 0…2187328MPPES-3-½-2-010187329MPPES-3-½-2-420½0...6187330MPPES-3-½-6-010187331MPPES-3-½-6-4200 (10)187326MPPES-3-½-10-010187327MPPES-3-½-10-420Special adaptation type 1)G x 0…10187347MPPES-3-x -PU-PO-010187762MPPES-3-x -PU-PO-420G ¼0…10187339MPPES-3-¼-PU-PO-010187744MPPES-3-¼-PU-PO-420G ½0…10187332MPPES-3-½-PU-PO-010187735MPPES-3-½-PU-PO-4201)The special adaptation type allows a lower pressure PU to be assigned to the setpoint 0V or 4mA and an upper pressure PO to be assigned to the setpoint 10V or 20mA.PU and PO by customer request.Proportional pressure regulators MPPE/MPPESAccessories14 Internet:/catalogue/...Subject to change–2010/06Product Range and Company OverviewThe Broadest Range of Automation ComponentsWith a comprehensive line of more than 30,000 automation components, Festo is capable of solving the most complex automation requirements.Supporting Advanced Automation… As No One Else Can!Festo is a leading global manufacturer of pneumatic and electromechanical systems, components and controls for industrial automation,with more than 12,000 employees in 56 national headquarters serving more than 180 countries. For more than 80 years, Festo hascontinuously elevated the state of manufacturing with innovations and optimized motion control solutions that deliver higher performing,more profitable automated manufacturing and processing equipment. Our dedication to the advancement of automation extends beyond technology to the education and development of current and future automation and robotics designers with simulation tools, teaching programs, and on-site services.Quality Assurance, ISO 9001 and ISO 14001 CertificationsFesto Corporation is committed to supply all Festo products and services that will meet or exceed our customers’ requirements in product quality, delivery, customer service and satisfaction.To meet this commitment, we strive to ensure a consistent, integrated, and systematic approach to management that will meet or exceed the requirements of the ISO 9001 standard for Quality Management and the ISO 14001 standard for Environmental Management.PLCs and I/O DevicesPLC's, operator interfaces, sensors and I/O devicesPneumaticsPneumatic linear and rotary actuators,valves, and air supplyElectromechanicalElectromechanical actuators, motors, controllers & drives A Complete Suite of Automation ServicesOur experienced engineers provide complete support at every stage of your development process, including: conceptualization, analysis, engineering, design, assembly, documentation, validation, and production.Complete SystemsShipment, stocking and storage servicesCustom Control CabinetsComprehensive engineering supportand on-site servicesCustom Automation ComponentsComplete custom engineered solutions© Copyright 2008, Festo Corporation. While every effort is made to ensure that all dimensions and specifications are correct, Festo cannot guarantee thatpublications are completely free of any error, in particular typing or printing errors. Accordingly, Festo cannot be held responsible for the same. For Liability and Warranty conditions, refer to our “Terms and Conditions of Sale”, available from your local Festo office. All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior written permission of Festo.All technical data subject to change according to technical update.Printed on recycled paper at New Horizon Graphic, Inc., FSC certified as an environmentally friendly printing plant.Festo Regional Contact Center5300Explorer DriveMississauga,Ontario L4W 5G4Canada USA Customers:For ordering assistance,Call: 1.800.99.FESTO (1.800.993.3786)Fax: 1.800.96.FESTO (1.800.963.3786)Email:*************************.com For technical support,Call: 1.866.GO.FESTO (1.866.463.3786)Fax: 1.800.96.FESTO (1.800.963.3786)Email:************************.com Canadian Customers:Call: 1.877.GO.FESTO (1.877.463.3786)Fax: 1.877.FX.FESTO (1.877.393.3786)Email:*********************.comUSA HeadquartersFesto Corporation395Moreland Road P .O.Box 18023Hauppauge,NY 11788,USA /us USA Sales OfficesAppletonNorth 922Tower View Drive,Suite N Greenville,WI 54942,USA Boston120Presidential Way,Suite 330Woburn,MA 01801,USA Chicago1441East Business Center Drive Mt.Prospect,IL 60056,USA Dallas1825Lakeway Drive,Suite 600Lewisville,TX 75057,USADetroit –Automotive Engineering Center 2601Cambridge Court,Suite 320Auburn Hills,MI 48326,USA New York395Moreland RoadHauppauge,NY 11788,USA Silicon Valley4935Southfront Road,Suite F Livermore,CA 94550,USAFesto North AmericaUnited StatesWestern USAFesto Corporation 4935Southfront Road,Suite FLivermore,CA 94550,USA Phone:1.925.371.1099Fax: 1.925.245.1286Central USAFesto Corporation1441East Business Center DriveMt.Prospect,IL 60056,USA Phone:1.847.759.2600Fax: 1.847.768.9480Festo WorldwideArgentina Australia Austria BelarusBelgiumBrazil Bulgaria Canada Chile China Colombia Croatia Czech Republic Denmark Estonia Finland FranceGermanyGreat BritainGreece Hong Kong Hungary India IndonesiaIran IrelandIsrael ItalyJapan Latvia Lithuania MalaysiaMexico Netherlands New Zealand Norway PeruPhilippines Poland RomaniaRussiaSerbiaSingapore SlovakiaSlovenia South AfricaSouth KoreaSpainSwedenSwitzerland TaiwanThailandTurkeyUkraine United StatesVenezuelaUSA Headquarters,East :Festo Corp.,395Moreland Road,Hauppauge,NY 11788Phone:1.631.435.0800;Fax:1.631.435.8026;Email:******************/usHeadquarters:Festo Pneumatic,S.A.,Av.Ceylán 3,Col.Tequesquinahuac,54020Tlalnepantla,Edo.de MéxicoPhone:01152[55]53216600;Fax:01152[55]53216665;Email:*********************.com /mxCanadaMexicoHeadquarters:Festo Inc.,5300Explorer Drive,Mississauga,Ontario L4W 5G4Phone:1.905.624.9000;Fax:1.905.624.9001;Email:*********************.com www.festo.ca。

费斯托比例压力调节器VEAA系列说明书

费斯托比例压力调节器VEAA系列说明书

Proportional-pressure regulators VEAA2d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAAKey featuresInnovative FlexibleOperational safetyEasy to install• Silent operation• Very low power consumption • Extremely precise•Integrated piezo technology• In-line valves • Sub-base valves• Simple electrical and pneumatic interfaces• Choice of different setpoint specifications – Current input – Voltage input• Integrated pressure sensor with separate output • Diagnostics:– Operating voltage: over- and undervoltage– Setpoint value: falling below and exceeding• Consistent pressure regulation performance with long-term stability• Mounting the in-line valve via three lateral through-holes • H-rail mounting• Mounting the in-line valve on the mounting plate• Mounting the sub-base valve using the sub-baseProportional-pressure regulators VEAA Key features[1] Power LED (green), fault LED (red)[2] Electrical connection,M8 plug[3] Through-holes for mounting thevalve on the sub-base[4] Port 2, working air[5] Port 3, exhaust air[6] Port 1, compressed air3 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAAKey features1located on the manifold rail.4d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Product range overview5 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAAPeripherals overviewValve manifold assembly VEAA6d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAAType codes72022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAA Datasheet-M-Flow rate7 ... 13 l/min -P- Voltage24 V DC -L-Output pressure 2 (pressureregulation range)0.001 ... 0.2 MPa0.003 ... 0.6 MPa0.005 ... 1 MPaVEAA-BH--NoteSafety position, VEAA:If the electrical power supply fails,the output pressure will be unregu-lated and may rise or fall – valveblocked.8d Internet: /catalogue/...Subject to change – 2022/0392022/03 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators VEAADatasheet1)Input pressure 1 should always be 1 bar greater than the maximum regulated output pressure.2)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.3)For information about the area of use, see the EC declaration of conformity at:: /catalogue/... d Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.FunctionAn integrated pressure sensor records the pressure at the working port and compares this value with the setpoint value.The pressure is automaticallyreadjusted in the event of deviations.Proportional-pressure regulators VEAADatasheet10d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Datasheet11 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAADatasheet12d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Datasheet13 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAADatasheet14d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Datasheet15 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAADatasheet16d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Datasheet17 2022/03 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VEAADatasheet18d Internet: /catalogue/...Subject to change – 2022/03Proportional-pressure regulators VEAA Accessories19 2022/03 – Subject to change d Internet: /catalogue/...Festo - Your Partner in AutomationConnect with us/socialmedia 1Festo Inc.2Festo Pneumatic 3Festo Corporation 4Regional Service Center 5300 Explorer DriveMississauga, ON L4W 5G4CanadaAv. Ceylán 3,Col. Tequesquináhuac 54020 Tlalnepantla, Estado de México1377 Motor Parkway Suite 310Islandia, NY 117497777 Columbia Road Mason, OH 45040Festo Customer Interaction CenterTel:187****3786Fax:187****3786Email:*****************************Multinational Contact Center 01 800 337 8669***********************Festo Customer Interaction Center180****3786180****3786*****************************S u b j e c t t o c h a n g e。

FESTO VEAB比例压力调节器安装说明书

FESTO VEAB比例压力调节器安装说明书

1About this document 1.1Applicable documents1.2Product Labelling–Observe the specifications on the product.Warning SymbolThe following warning symbol can be seen on the product:2Safety2.1Safety instructions–Only use the product in original status without unauthorised modifications.–Only use the product if it is in a perfect technical condition and it is not damaged in any way.–Take into consideration the ambient conditions at the location of use.–Before working on the product, switch off the power supply and secure it against being switched on again.–When installing the product, ensure that it can only be accessed by authorised persons.–Observe additional safety instructions in chapter è Installation.2.2Intended useThe product is intended to regulate the pressure in proportion to a specified setpoint value.The product is intended for use in industrial environments.2.3Training of qualified personnelWork on the product may only be carried out by qualified personnel who can evaluate the work and detect dangers. The qualified personnel have skills and experience in dealing with electropneumatic (open-loop) control technology.3Additional information–Contact the regional Festo contact if you have technical problems è .–Accessories and spare parts è /catalogue.4Product overview4.1Functional principleA built-in pressure sensor records the pressure at the working port and compares this value with the setpoint value. In the event of deviations between the setpoint value and actual value, the valve regulates until the outlet pressure has reached the setpoint value.4.2Structure4.2.1Product design In-line valveFig. 2:View from frontLEDElectrical connection, M8 plug Working air port (2)Fig. 3:View from rear Compressed air port (1)Exhaust air port (3)Through-holes (3x) for mounting the valveSub-base valveFig. 4:View from frontLEDElectrical connection, M8 plug Through-holes (2x) for mounting the valve on the sub-baseFig. 5:View from beneathWorking air port (2)Exhaust air port (3)Compressed air port (1)4.2.2Product variants5Transport and storage–Store the product in a dry, UV- and corrosion-protected environment.–Ensure short storage times.6Mechanical installation1.Make sure there is sufficient space for the connecting cable and tubing con-nections.ÄIn this way you will prevent the connecting lines and the tubes fromkinking.2.Place the valve as close to the consumer as possible.ÄThis leads to improved control precision and shorter response times.Mounting options of the valve:–Through-hold mounting of the in-line valve through 3 lateral through-holes–Mounting of the in-line valve to H-rails using H-rail mounting VAME-P7-T è 1.1Applicable documents–Mounting of the in-line valve to the mounting plate VAME-P7-Y è 1.1 Appli-cable documents–Mounting of the sub-base valve using 2 through holes using the sub-baseVABM-.... è 1.1 Applicable documents7Installation7.1Pneumatic installation (in-line valve)Valves for standard operation (overpressure)1.Attach the tubing to the following connections:–Compressed air port (1)–Working air port (2)2.Fit a silencer at the exhaust port (3) or provide for ducted exhaust air .Valves for vacuum operation (reversible operation)1.Attach the tubing to the following connections:–Vacuum port (3)–Working air port (2)2.Mount silencer on the compressed air port (1) to protect the valve fromcoarse dirt particles.Operating medium7.2Electrical installation1.If a screened cable is used: earth the shield at the cable end away from thevalve.2.Install electrical connecting cable without squeezing, kinking or stretching.3.Screw electrical connecting cable onto the M8 plug connector. Tighteningtorque: maximum 0.3 NmTab. 4:Pin allocation for M8 plug, 4-pin8Commissioning1.Check the operating conditions and limit values è Technical data.2.Switch on compressed air supply.3.Check pneumatic connection points for tightness.4.Connect valve to a setpoint signal.5.Switch on operating voltage.9Cleaning1.Switch off the following energy sources to clean the outside:–Compressed air–Operating voltage2.Clean the outside of the product with a soft cloth. Do not use aggressivecleaning agents.10Malfunctions10.1Diagnostics10.2Fault clearance11Dismounting1.Switch off setpoint voltage.2.Switch off operating voltage.3.Switch off compressed air supply.4.Remove electrical connecting cables.5.Remove compressed air lines.6.Dismantle the product.12Technical datacommercial and residential/mixed-use areas, it may be necessary to take measures to suppress radio interference.Tab. 7:General technical data the ideal characteristic curve.Tab. 8:Control characteristics。

费斯托比例压力调节器MPPE MPPES产品参考手册说明书

费斯托比例压力调节器MPPE MPPES产品参考手册说明书

Proportional-pressure regulators MPPE/MPPESProportional-pressure regulators MPPE/MPPESProduct range overview1)Pressure regulation range also on customer request2d Internet: /catalogue/...Subject to change – 2022/0832022/08 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators MPPE/MPPESPeripherals overview498Proportional-pressure regulators MPPEType codes4d Internet: /catalogue/...Subject to change – 2022/0852022/08 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators MPPEData sheet-M-Flow rate350 ... 8800 l/min-P- Voltage18 ... 30 V DC-L-Pressure regulation ranges 0 ... 0.1 MPa 0 ... 0.25 MPa 0 ... 0.6 MPa 0 ... 1 MPaVariants• Setpoint input as analogue voltage signal 0 ... 10 V• Setpoint input as analogue currentsignal 4 ... 20 mAqn [l/min]p 2[b a r ]2004006008001000120014000123456qn [l/min]p 2[b a r ]400800120016002000012345678910116d Internet: /catalogue/...Subject to change – 2022/08Proportional-pressure regulators MPPEData sheetqn [l/min]p 2[b a r ]4008001200160020002400280001234567qn [l/min]p 2[b a r ]5001000150020002500300035000123456789101172022/08 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators MPPEData sheetqn [l/min]p 2[b a r ]1000200030004000500060007000800001234567qn [l/min]p 2[b a r ]200040006000800010000012345678910Proportional-pressure regulators MPPEData sheet1)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.2)For information about the area of use, see the EC declaration of conformity at: /catalogue/... d Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.8d Internet: /catalogue/...Subject to change – 2022/08Proportional-pressure regulators MPPE Data sheet9 2022/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators MPPE Data sheetConnections Switching functionTerminal allocation1X ext,in2GND3GND4W in (setpoint input)510 V OUT6X out (actual value output)724 V DC (supply voltage)8GND10d Internet: /catalogue/...Subject to change – 2022/08Proportional-pressure regulators MPPE Data sheet1)The special adaptation type allows a pressure PU to be assigned to the setpoint value 0 V or 4 mA and an upper pressure PO to be assigned to the setpoint value 10 V or 20 mA.Proportional-pressure regulators MPPESType codesProportional-pressure regulators MPPES Data sheet-M-Flow rate230 ... 8500 l/min -P- Voltage18 ... 30 V DC-L-Pressure regulation ranges0 ... 0.2 MPa0 ... 0.6 MPa0 ... 1 MPa Variants• Setpoint input as analogue voltage signal 0 ... 10 V• Setpoint input as analogue currentsignal 4 ... 20 mAProportional-pressure regulators MPPES Data sheetProportional-pressure regulators MPPES Data sheetProportional-pressure regulators MPPESData sheet1)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.2)For information about the area of use, see the EC declaration of conformity at: /catalogue/... d Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.Proportional-pressure regulators MPPES Data sheetProportional-pressure regulators MPPESData sheetConnections Switching functionTerminal allocation MPPES-3-1/8-...MPPES-3-1/4-.../MPPES-3-1/2-...1n. c.2GND3GND4W in (setpoint input)5n. c.6X out (actual value output)724 V DC (supply voltage)8GNDProportional-pressure regulators MPPES Data sheet1)The special adaptation type allows a lower pressure PU to be assigned to the setpoint value 0 V or 4 mA and an upper pressure PO to be assigned to the setpoint value 10 V or 20 mA.Proportional-pressure regulators MPPE/MPPES Accessories。

威索燃烧机比例调节仪KS40操作指南

威索燃烧机比例调节仪KS40操作指南

KS40操作指南一、参数初始化(恢复出厂设置)同时按住▼键和▲键,给KS40上电,KS40就恢复到出厂设置。

这时可以依次按参数表重新设置参数。

二、KS40功能配置1.模式完成参数初始化后(重新上电时在模式)。

按住3秒后,显示;用▼键下翻至显示;按,显示;按,显示;这时按▼键和▲键调整值(功能代码,设置值为30);按,返回到起始画面。

操作顺序如下图:2.非模式设置完值后,按住,给KS40上电,进入模式。

按住3秒,显示;用▼键下翻至显示;按,进入菜单。

这时使用▼键和▲键改变参数名和参数值,使用确认参数值。

参数见表一。

操作结构图如下图:三、KS40参数设置配置完所有功能菜单后,进入原始画面,按住3秒,显示;按,进入菜单。

这时使用▼键和▲键改变参数名和参数值,使用确认参数值。

参数见表二。

操作结构图如上图:表一:功能配置类型 名称 设置值 类型 名称 设置值类型 名称 设置值0 019 11 00 01 010 01000 050 00 013 02 0630 13 01 00 040 510 010 1 00 0 0表二:参数配置类型 名称 设置值 类型 名称 设置值类型 名称 设置值10 0 010 0 040 5 10010 8 135OFF 0 0.510 135 410 20 4010 OFF 204 100 1200.1 10 OFF0.1 100 0.20 10 0.1OFF 200 OFF60 10 OFF0 200 0.1100 10Weishaupt燃烧机比例控制一、系统控制流程图二、风门比例调节器示意图三、KS40输入信号线形转换参数设置示意图(根据实际情况调整参数)。

FESTO VPPM 2 比例压力调节器说明书

FESTO VPPM 2 比例压力调节器说明书

Proportional-pressure regulators VPPM2d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPMKey features – Overview12346810[1]LED displays [2] Display window [3] Control elements [4]Plug socket with cable[5] Sub-base valve[6] Exhaust at both ends [7] Working ports [8]Manifold block[9] Compressed air supply at bothends[10] H-rail mounting[11] Individual valve[12] Angle bracket can be rotated 180°during mountingInnovativeFlexibleOperational safetyEasy to install • Multi-sensor control (cascade control)• Diagnostics• Choice of regulation characteristic • Temperature compensated • High dynamic response • High repetition accuracy• Processing of modular products • IO-Link, for direct connection to a higher-level IO-Link/I-Port master• Individual valves (in-line valve)• Sub-base valves (battery/sub-base valve)• Various user interfaces – LED displays – LCD display– Adjustment/selection buttons • Choice of valves with different pressure ranges• Pressure range can be modified on the valve• Choice of different setpoint specifications – Current input – Voltage input• Integrated pressure sensor with separate output• Wire break monitoring• Pressure maintained if controller fails• Manifold block (manifold)• H-rail mounting• Individually via mounting bracket •QS fittingsProportional-pressure regulators VPPM Key features – OverviewOverview, VPPM IO-Link[1] Diagnostics via fieldbus[2] Bus node[3] Electrical connection block CAPC[4] Connecting cable NEBU[5] Proportional-pressure regulatorVPPM with IO-Link3 2023/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VPPMKey features – VPPM on valve terminalOverview, VPPM on the valve terminal MPA-S21[1] 24 V[2] Serial dataInnovative Flexible Operational safety Easy to install• Multi-sensor control• Diagnostics via the bus• Choice of regulation characteristic • High dynamic response• 2 accuracy levels • For all common protocols• As an individual pressure regulator• As a pressure zone regulator• Choice of 3 valves with differentpressure ranges• 3 pressure ranges (presets) can beset via the bus• Internal or external compressed airsupply possible• Long service life• LED display for the operating status• Pressure maintained in case ofsupply voltage failure• Fast troubleshooting with LEDs onthe valves and diagnostics viafieldbus• Ease of servicing with replaceablevalves• Easy replacement of the valves• Tested units• Easy extension of the valve terminalH--NoteMore information on the VPPM valves for MPA-Sa mpas4d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPM Key features – Control loopLayout of a control loopDesign Method of operationThe figure shows a closed loop control. The reference variable w (setpoint val-ue, e.g. 5 V or 8 mA) initially acts on a comparator. The measuring equipment sends the controlled variable x value (actual value, e.g. 3 bar) to the com-parator as a feedback signal r. The closed-loop control element detects the system deviation e and actuates the final control element. The output of the final control element acts on the controlled system. The closed-loopcontrol element thus attempts to com-pensate for the difference between thereference variable w and the controlledvariable x by using the final controlelement.This process runs continuously sochanges in the reference variable arealways detected. However, a systemdeviation will also occur if the refer-ence variable is constant and the con-trolled variable changes. This happenswhen the flow through the valve chang-es in response to a switching opera-tion, a cylinder movement or a loadchange. The disturbance variable z willalso cause a system deviation. Anexample of this is when the pressuredrops in the air supply. The distur-bance variable z acts on the controlledvariable x in an unforeseen way. In allcases, the closed-loop controllerattempts to correct the controlledvariable x to the reference variable w.Multi-sensor control (cascade control) of the VPPMCascade controller Control precisionUnlike conventional direct-acting con-trols, in multi-sensor controls multiple control loops are nested inside one other. The overall controlled system is divided into smaller sub-sections that are easier to control for the specifictask.Control accuracy and dynamic re-sponse are greatly improved with themulti-sensor control principle in com-parison with a single-acting regulator.52023/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VPPMKey features – Control loop6d Internet: /catalogue/...Subject to change – 2023/0872023/08 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators VPPMKey features – Flow rateFlow rate qn of 1 d 2 as a function of excess output pressure p2VPPM-6L/F-...-0L2H-...(2 bar)VPPM-6L/F-...-0L6H-...(6 bar)VPPM-6L-...-OL2H-...qn1-2[l/min]7515022530037545052560000.20.40.60.811.21.41.61.82VPPM-6L-...-OL6H-...qn1-2[l/min]p 2[b a r ]150300450600750900105012000.61.21.82.433.64.24.85.56VPPM-6L/F-...-0L10H-...(10 bar)VPPM-6L-...-OL10H-...qn1-2[l/min]2004006008001000120014001600012345678910Flow rate qn of 2 d 3 as a function of excess output pressure p2VPPM-6L/F-...-0L2H-...(2 bar)VPPM-6L/F-...-0L6H-...(6 bar)VPPM-6L-...-OL2H-...p2[bar]q n 2-3[l /m i n ]0.20.40.60.811.2 1.4 1.6 1.82050100150200250300350VPPM-6L-...-OL6H-...p2[bar]00.51 1.52 2.53 3.54 4.55 5.56100200300400500600700800VPPM-6L/F-...-0L10H-...(10 bar)VPPM-6L-...-OL10H-...p2[bar]q n 2-3[l /m i n ]0123456789100200400600800100012008d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPMKey features – Flow rateFlow rate qn of 1 d 2 as a function of excess output pressure p2VPPM-8L...-0L2H-...(2 bar)VPPM-8L-...-0L6H-...(6 bar)VPPM-8F-...-OL2H-...qn1-2[l/min]200400600800100000.20.40.60.811.21.41.61.82VPPM-8L-...-OL6H-...qn1-2[l/min]p 2[b a r ]5001000150020002500300000.61.21.82.433.64.24.85.46VPPM-8L-...-0L10H-...(10 bar)VPPM-8L-...-OL10H-...qn 1-2[l/min]500100015002000250030003500012345678910Flow rate qn of 2 d 3 as a function of excess output pressure p2VPPM-8L-...-0L2H-...(2 bar)VPPM-8L-...-0L6H-...(6 bar)VPPM-8L-...-OL2H-...p2+[bar]q n 2-3[l /m i n ]0.20.40.60.811.2 1.4 1.6 1.82100200300400500600700800VPPM-8L-...-OL6H-...p2+[bar]q n 2-3[l /m i n ]0.6 1.2 1.8 2.433.64.2 4.85.46200400600800100012001400160018002000VPPM-8L-...-0L10H-...(10 bar)VPPM-8L-...-OL10H-...p2+[bar]q n 2-3[l /m i n ]1234567891050010001500200025003000350092023/08 – Subject to changed Internet: /catalogue/...Proportional-pressure regulators VPPMKey features – Flow rateFlow rate qn of 1 d 2 as a function of excess output pressure p2VPPM-8F/8TA-...-0L2H-...(2 bar)VPPM-8F/8TA-...-0L6H-...(6 bar)VPPM-8L-...-OL2H-...qn 1-2[l/min]20040060080010001200140000.20.40.60.811.21.41.61.82VPPM-8F-...-OL6H-...qn 1-2[l/min]p 2[b a r ]2505007501000125015001750200000.61.21.82.433.64.24.85.46VPPM-8F/8TA-...-0L10H-...(10 bar)VPPM-8F-...-OL10H-...qn 1-2[l/min]5001000150020002500012345678910Flow rate qn of 2 d 3 as a function of excess output pressure p2VPPM-8F/8TA-...-0L2H-...(2 bar)VPPM-8F/8TA-...-0L6H-...(6 bar)VPPM-8L-...-OL2H-...p2+[bar]q n 2-3[l /m i n ]0.20.40.60.811.2 1.4 1.6 1.820100200300400500600VPPM-8L-...-OL6H-...p2+[bar]q n 2-3[l /m i n ]0.6 1.2 1.8 2.433.64.2 4.85.460200400600800100012001400VPPM-8F/8TA-...-0L10H-...(10 bar)VPPM-8L-...-OL10H-...p2+[bar]q n 2-3[l /m i n ]0123456789100500100015002000250010d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPMKey features – Flow rateFlow rate qn of 1 d 2 as a function of excess output pressure p2VPPM-12L-...-0L2H-...(4 bar)VPPM-12L-...-0L6H-...(8 bar)qn1-2[l/min]p 2[b a r ]1000200030004000500000.20.40.60.811.21.41.61.82qn1-2[l/min]1000200030004000500060007000800000.511.522.533.544.555.56VPPM-12L-...-0L10H-...(11 bar)qn1-2[l/min]p 2[b a r ]200040006000800010000012345678910Flow rate qn of 2 d 3 as a function of excess output pressure p2VPPM-12L...-0L2H-...(4 bar)VPPM-12L-...-0L6H-...(8 bar)p2[bar]q n 2-3[l /m i n ]0.20.40.60.811.2 1.4 1.6 1.822505007501000125015001750200022502500p2[bar]00.51 1.52 2.53 3.54 4.55 5.5650010001500200025003000350040004500500055006000VPPM-12L-...-0L10H-...(11 bar)p2[bar]q n 2-3[l /m i n ]1234567891010002000300040005000600070008000900010000Individual valve VPPM-6L ... , VPPM-8L ...8Individual valve VPPM-12L ...Valve manifold assembly with VPPM-6F ... , VPPM-8F ...System overviewVPPM-6TA ... , VPPM-8TA ...for valve terminal MPA-S15Type codes-M-Flow rate380 ... 7000 l/min -P- Voltage21.6 ... 26.4 V DC-L-Pressure regulation range0.002 ... 1 MPa0.02 ... 10 bar Variants• Setpoint input as analogue voltage signal 0 ... 10 V• Setpoint input as analogue current signal 4 ... 20 mA• LED version• With LCD display ( (1)•Switching output NPN (N) or PNP (P)H--NoteOutput pressure will be unregulated if the power supply cable is interrupted.1)Input pressure 1 should always be 1 bar greater than the maximum regulated output pressure.2)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.3)For information about the area of use, see the EC declaration of conformity at: /catalogue/... a Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.MaterialsSectional view VPPM-6 ..., VPPM-8 ...Sectional view VPPM-12 ...Proportional-pressure regulators VPPM Datasheet – VPPM with analogue interface1)In respect of signal type and scaling, the actual value is designed corresponding to the setpoint specification.VersionCircuit symbol• Piloted diaphragm valve• Pressure regulation range:0.002 ... 0.2, 0.006 ... 0.6,0.01 ... 1 MPa• Signal setpoint value input:0 ... 10 V DC, 4 ... 20 mAProportional-pressure regulators VPPM Datasheet – VPPM with analogue interfaceProportional-pressure regulators VPPM Datasheet – VPPM with analogue interfaceProportional-pressure regulators VPPM Datasheet – VPPM with analogue interfaceProportional-pressure regulators VPPM Datasheet – VPPM with analogue interfaceProportional-pressure regulators VPPM, IO-Link Datasheet – VPPM with IO-Link interface-M-Flow rate380 ... 7000 l/min -P- Voltage18 ... 30 V DC-L-Pressure regulation range0.002 ... 1 MPa0.02 ... 10 bar • Digital setpoint and actual valuetransfer• For connection to an I/O-Link/I-Portmaster• LED version•Comparator output (digital)VPPM-12H--NoteOutput pressure will be unregulated if the power supply cable is interrupted.Proportional-pressure regulators VPPM, IO-Link Datasheet – VPPM with IO-Link interface1)Input pressure 1 should always be 1 bar greater than the maximum regulated output pressure.2)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.3)For information about the area of use, see the EC declaration of conformity at: /catalogue/... a Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.VersionCircuit symbol• Piloted diaphragm valve• Pressure regulation range:0.002 ... 0.2, 0.006 ... 0.6,0.01 ... 1 MPa• Signal setpoint value input:0 ... 10 V DC, 4 ... 20 mAProportional-pressure regulators VPPM, IO-Link Datasheet – VPPM with IO-Link interfaceProportional-pressure regulators VPPM, IO-Link Datasheet – VPPM with IO-Link interfaceProportional-pressure regulators VPPM, IO-Link Datasheet – VPPM with IO-Link interfaceOrdering data – Modular product system1)12Only with valve type L(in-line)2)L Only with connection type G18, G14, G12 (G thread G1/8, G1/4, G1/2)3)F Only with connection type F (flange/sub-base)4)T Only with connection type F (flange/sub-base)5)...L Not with pressure regulation range (0L2H, 0L6H, 0L10H).Must always be less than alternative upper pressure regulation range H 5)...H Not with pressure regulation range (0L2H, 0L6H, 0L10H).Must always be greater than alternative upper pressure regulation range LManifold blockVABM-P1Material:Wrought aluminium alloy1)Corrosion resistance class CRC 2 to Festo standard FN 940070Moderate corrosion stress. Indoor applications in which condensation can occur. External visible parts with primarily decorative surface requirements which are in direct contact with a normal industrial environment.H- -NoteIn combination with manifold block VABM-P1- ... flanged valves VPPM-6F- ... and VPPM-8F- ... are to be used.Cover plateVABB-P1Material:Wrought aluminium alloy, NBR, steel1)Corrosion resistance class CRC 1 to Festo standard FN 940070Low corrosion stress. Dry indoor application or transport and storage protection. Also applies to parts behind covers, in the non-visible interior area, and parts which are covered in the application (e.g. drive trunnions).BracketVAME-P1-AMaterial:Wrought aluminium alloy, steel1)Corrosion resistance class CRC 1 to Festo standard FN 940070Low corrosion stress. Dry indoor application or transport and storage protection. Also applies to parts behind covers, in the non-visible interior area, and parts which are covered in the application (e.g. drive trunnions).H- -NoteIn combination with bracket VAME-P1- A in-line valves VPPM-6L- ... and VPPM-8L- ... are to be used.H-rail mountingVAME-P1-TMaterial:Wrought aluminium alloy, steel1)Corrosion resistance class CRC 1 to Festo standard FN 940070Low corrosion stress. Dry indoor application or transport and storage protection. Also applies to parts behind covers, in the non-visible interior area, and parts which are covered in the application (e.g. drive trunnions).H- -NoteIn combination with H-rail VAME-P1- T in-line valves VPPM-6L- ... and VPPM-8L- ... are to be used.Connecting cableNEBV-M12G8-KD-3-M12G4For connecting the proportional-pres-sure regulator VPPM to the analogue input and output modules of the CPX terminal.Connecting cableNEBV-M12G8-K-5-M12G4For connecting the proportional-pres-sure regulator VPPM to the analogue output modules of the CPX terminal.Proportional-pressure regulators VPPM Accessories41 2023/08 – Subject to change d Internet: /catalogue/...Festo - Your Partner in AutomationConnect with us/socialmedia 1Festo Inc.2Festo Pneumatic 3Festo Corporation 4Regional Service Center 5300 Explorer DriveMississauga, ON L4W 5G4CanadaAv. Ceylán 3,Col. Tequesquináhuac 54020 Tlalnepantla, Estado de México1377 Motor Parkway Suite 310Islandia, NY 117497777 Columbia Road Mason, OH 45040Festo Customer Interaction CenterTel:187****3786Fax:187****3786Email:*****************************Multinational Contact Center 01 800 337 8669***********************Festo Customer Interaction Center180****3786180****3786*****************************S u b j e c t t o c h a n g e。

费斯托(Festo)VPPE 比例压力调节器产品概述及配件清单说明书

费斯托(Festo)VPPE 比例压力调节器产品概述及配件清单说明书

Proportional-pressure regulators VPPEProportional-pressure regulators VPPEProduct range overview2d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPEPeripherals overview3 2023/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VPPEPeripherals overview – Additional supply4d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPEType codes52023/08 – Subject to change d Internet: /catalogue/...6d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPEData sheet-M- Flow rate310 ... 1250 l/min -P- Voltage21.6 ... 26.4 V DC -L-Pressure regulation ranges 0.002 ... 0.2 MPa 0.006 ... 0.6 MPa 0.01 ... 1 MPaVariants• Setpoint input as analogue voltage signal 0 ... 10 V• Setpoint input as analogue current signal 4 ... 20 mA• Assembly as in-line valve or on profile strip•3-digit LED displayqn [l/min]p 2[b a r ]5001000150020002500012345678910p2[bar]q n [l /m i n ]012345678910100200300400500600Proportional-pressure regulators VPPE Data sheet1)Input pressure 1 should always be 1 bar greater than the maximum regulated output pressure.2)More information: /x/topic/kbk3)For information about the area of use, see the EC declaration of conformity at: /catalogue/... d Support/Downloads.If the devices are subject to usage restrictions in residential, commercial or light-industrial environments, further measures for the reduction of the emitted interference may be necessary.7 2023/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VPPE Data sheetPin allocation for VPPE, M12x1Circuit symbol 1 Supply21.6 ... 26.4 V DC2 Setpoint value (–)3 GND (–)4 Setpoint value (+) 0 ... 10 V DC /4 ... 20 mA5 Actual value output or switchingoutput (can be selected on theoperator panel)H--NoteOutput pressure remains unregulated if the supply cable is interrupted.8d Internet: /catalogue/...Subject to change – 2023/08Proportional-pressure regulators VPPE Data sheet9 2023/08 – Subject to change d Internet: /catalogue/...Proportional-pressure regulators VPPEOrdering data10d Internet: /catalogue/...Subject to change – 2023/08Profile strip for proportional-pressure regulators VPPE Data sheetGeneral informationDesignSome selected types of the pressure regulator VPPE can be screwed to a profile strip. This has the advantage that the profile strip can be used to create a central compressed air supply.The air can be fed into the profile strip:• at one end or• at both ends through end plates,• using an intermediate air supplymodule (in applications where anincreased air rate is required).The holes for the profile strip must bedrilled according to the assemblyinstructions. The pressure regulatorsVPPE are screwed to the profile stripusing the mounting plate. The endplates are screwed to the left and rightend faces of the profile strip. S ee theassembly instructions for furtherinformation:a Internet: vppeCompressed air supply on the profile strip Recommendation for compressed air supplyWhen using the profile strip as a cen-tral compressed air supply, make sure that the required compressed air sup-ply is guaranteed. Bear in mind that an intermediate air supply module needs a valve position. The intermediate airsupply module takes up one VPPEvalve position.For example, with tubing diameterØ 16 mm with simultaneous max. flowrate for all valves, the followingapplies:Compressed air supply – number ofvalves:• At one end – max. 5 valves• At both ends – max. 10 valves• With intermediate air supplymodule – max. 5 valves eachH--Note• Intermediate air supply modulesmust always be centred on theprofile strip.• Multiple intermediate air supplymodules must be evenlydistributed.H- -NoteOnly the following types of propor-tional-pressure regulators VPPE can be mounted on profile strips using a mounting plate:• Valve VPPE with display and toppart rotated by 90°VPPE-...Further information on mounting pro-portional-pressure regulators VPPEas well as intermediate air supplymodules on profile strips can befound in the assembly instructions:aInternet: vppe1)More information: /x/topic/kbk11 2023/08 – Subject to change d Internet: /catalogue/...Profile strip for proportional-pressure regulators VPPEOrdering data12d Internet: /catalogue/...Subject to change – 2023/08Festo - Your Partner in AutomationConnect with us/socialmedia 1Festo Inc.2Festo Pneumatic 3Festo Corporation 4Regional Service Center 5300 Explorer DriveMississauga, ON L4W 5G4CanadaAv. Ceylán 3,Col. Tequesquináhuac 54020 Tlalnepantla, Estado de México1377 Motor Parkway Suite 310Islandia, NY 117497777 Columbia Road Mason, OH 45040Festo Customer Interaction CenterTel:187****3786Fax:187****3786Email:*****************************Multinational Contact Center 01 800 337 8669***********************Festo Customer Interaction Center180****3786180****3786*****************************S u b j e c t t o c h a n g e。

比例式调节阀的工作原理

比例式调节阀的工作原理

比例式调节阀的工作原理
比例式调节阀是一种用于控制流体流量或压力的装置。

它基于阀门开度与输入信号的比例关系,通过调节阀门的开度来控制流体的流量或压力。

以下是比例式调节阀的工作原理:
1. 输入信号:比例式调节阀接收一个输入信号,通常是电信号或气压信号。

这个信号的大小和变化反映了所需的流量或压力控制参数。

2. 传感器:比例式调节阀内部有一个传感器,用于检测输入信号的大小和变化。

传感器可以是电子传感器或气压传感器,根据不同的调节阀类型而定。

3. 控制电路:传感器将检测到的信号传递给控制电路。

控制电路根据传感器信号的大小和变化,计算出阀门所需的开度。

这些电路通常包括一个比例放大器或控制器,用于将输入信号转换为适当的开度控制信号。

4. 驱动装置:控制电路生成的开度控制信号被送到阀门的驱动装置。

驱动装置可以是电动执行器、气动执行器或液压执行器等,用来控制阀门的开度。

5. 阀门开度调节:驱动装置根据控制信号的大小和方向,调节阀门的开度。

当控制信号增大时,驱动装置会相应地打开阀门,增加流体的流量或降低压力。

反之,当控制信号减小时,阀门会关闭或减小开度。

6. 反馈机制:比例式调节阀通常配备一个反馈机制,用于
检测阀门的实际开度。

这可以是一个位置传感器或其他反馈装置。

反馈信号被传递回控制电路,用于实时调整控制信号,以使阀门达到预期的开度。

通过不断调整阀门的开度,比例式调节阀能够实现流体流量或压力的精确控制。

它在自动化系统中广泛应用,例如工业过程控制、液压系统和暖通空调系统等。

比例积分调节器公式推导

比例积分调节器公式推导

比例积分调节器公式推导
比例积分(PI)调节器是一种常用的控制器,用于调节反馈控制系统中的误差。

推导PI调节器的公式需要从控制器的基本原理出发。

以下是对PI调节器公式的一种推导方法:
首先,我们假设有一个反馈控制系统,由比例(P)和积分(I)两个控制器组成。

1.反馈控制系统的误差表示为e(t) = r(t) - y(t),其中e(t)是误
差信号,r(t)是参考输入信号,y(t)是实际输出信号。

2.比例控制器的输出是比例增益Kp与误差信号的乘积,即
u(t) = Kp * e(t)。

3.积分控制器的输出是积分增益Ki与误差累积(积分)的乘
积,即u(t) = Ki * ∫0^t e(t') dt'。

4.将比例和积分控制器的输出相加得到总的控制输出,即
u(t) = Kp * e(t) + Ki * ∫ 0^t e(t') dt'。

5.将总的控制输出与控制系统的执行元件结合,产生实际的
控制动作。

需要注意的是,上述推导过程是一种常见的表示方式,实际应用中可能存在具体场景和要求的差异,因此对于具体的控制系统和参数,可能需要进行调整和优化。

PI调节器的设计中,比例增益Kp和积分增益Ki的选择非常重要,需要考虑系统的稳定性、响应速度和抗干扰能力等因素。

通常需要经过试验和调整来确定合适的数值。

另外,PI调节器
也可以通过参数整定方法,如Ziegler-Nichols方法或频域设计方法进行参数的确定。

第五章第三节 调节器及其调节作用规律

第五章第三节 调节器及其调节作用规律

比例作用规律
气 动 比 例 调 节 器
比例作用规律
• 设定测量值变化为△P测,调节器的输出变 化为△P出,由于给定值没有变,即给定力 矩的变化为0,杠杆平衡原理有: • △P测*F测L2+△P出△F反L3=0 • F测和F反分别是测量波纹管和反馈波纹管 的横截面积, L2和L3分别是测量力臂和反 馈力臂。 • 因此有:
第三节
调节器及其调节作用规律
调节器的作用规律
• 调节器的作用规律:1、双位式作用规律。 2、比例作用规律。3、比例积分作用规律。 4、比例微分作用规律。5、比例积分微分 作用规律。
一、位式调节器
• 特点:调节器只有俩个输出状态。它不能 使被控量稳定在某个值上。但能把被控量 控制在某个范围之内。
位式作用规律
de(t ) p(t ) Sd * dt
• Sd为微分系数 • 其作用规律如图:
比例微分调节器

实际微分作用的输出特性
比例微分调节器
• 二、比例微分作用规律: • 比例微分作用规律是在比例作用规律的基础 上加入微分作用而得到的一宗作用规律:
de(t ) de(e) p(t ) Ke(t ) Sd K [e(t ) Td ] dt dt
YT-1226型压力调节器
比例作用规律(propotion)
• 调节器的作用规律:
P(t ) K * e(t )
• K为放大倍数,输入相通的偏差e(t),放大倍数越大, 输出量越大。反之越小。 • 以下图为例讲解比例作用的调节过程
比例作用规律
比例作用规律
• 比例作用的特点:能够较及时的反应被控 制对象负荷的大小。负荷变化大,偏差大, 阀的开度就大,对被控量控制比较及时。 • 比例调节的缺点:当对象受到挠动后,被 控量不能回到给定值上来,只能回复到给 定值附近。被控量稳态值于给定值之间从 在较小的静态偏差。这是比例调节器固有 的不可克服的缺点。因为调节器的输入与 输出存在一一对应的硬性关系。

比例式励磁调节器产生的负阻尼效应

比例式励磁调节器产生的负阻尼效应

比例式励磁调节器产生的负阻尼效应比例式励磁调节器是一种电力系统中常用的设备,用于调节发电机励磁电流,以控制系统频率和电压。

它采用了负阻尼原理,可以在系统频率下降时提供负阻尼效应,从而使发电机加速,恢复系统频率。

本文将详细介绍比例式励磁调节器产生的负阻尼效应。

首先,我们来了解一下什么是负阻尼。

在控制系统中,阻尼是指系统中存在的阻碍物力量,使系统的运动趋于平衡。

阻尼可以分为正阻尼和负阻尼两种情况。

正阻尼是指阻碍物力量使系统回到平衡位置,负阻尼则是指阻碍物力量使系统远离平衡位置。

对于电力系统而言,当系统频率下降时,负阻尼效应可以提供额外的机械能,加速发电机转速恢复系统频率,并增加发电机输出功率。

比例式励磁调节器采用了负阻尼原理。

当系统频率下降时,励磁电流也会下降,导致发电机失速。

此时,励磁调节器会通过负阻尼效应提供额外的机械能,加速发电机转速恢复系统频率。

具体来说,比例式励磁调节器通过调整励磁电流和磁场磁势,改变发电机的机械特性,使其具备负阻尼效应。

比例式励磁调节器的负阻尼效应主要体现在两个方面。

首先是机电特性的改变。

比例式励磁调节器可以调整发电机的磁场磁势和励磁电流,改变其机械特性。

当系统频率下降时,励磁调节器会增加励磁电流,提高发电机的输出转矩。

这样,发电机就能够提供更多的机械动力,加速恢复系统频率。

同时,励磁调节器会减小发电机的磁场磁势,降低机械阻力,也有助于提高发电机的转速。

其次是励磁系统的稳定性改善。

比例式励磁调节器通过监测系统频率和电压,自动调整励磁电流和磁场磁势,保持系统稳定。

当系统频率下降时,励磁调节器会迅速响应,提高励磁电流,增加发电机的输出功率,补偿系统频率下降。

这样,比例式励磁调节器可以有效地调节励磁电流,抑制频率下降,提高电力系统的稳定性。

总的来说,比例式励磁调节器产生的负阻尼效应可以提供额外的机械能,加速发电机转速恢复系统频率,增加发电机输出功率。

负阻尼效应主要体现在机电特性的改变和励磁系统的稳定性改善两个方面。

调节器及调节作用规律

调节器及调节作用规律

引言
两种类型 调节器
正作用式
随着测量值的增加, 调节器的输出也增加
反作用式
随着测量值的增加, 调节器的输出减小
DLMU
引言
调节器研究的两个方面:
1. 作用规律:p(t)=f(e(t)),即传递函数的结构。也称控制规律或调节规律。 2. 作用强度:每一种控制规律的控制强度。反映在传递函数中,如比例系数、积分时间、
DLMU 例3: 气动比例调节器
§1-3-2 比例作用规律
喷嘴挡板
反馈波纹管
M设M测M反
杠杆
设定 弹簧
气源 放大器
支点
测量值
输出
测量波纹管
§1-3-2 比例作用规律 DLMU 假设给定值没有变化,即M设=0 ,则:
p 测 F 测 l2 p 出 F 反 l3 0
p出p测 F反 F 测 l3l2 Kp测
§1-3-1双位作用规律 DLMU 被控量在设定的上限和下限之间变化,调节器的输出只有两个状态(0或1)。
例1 浮子式锅炉水位的双位控制系统 被控量输出曲线
被控量
开 执行机构

动作范围
水位与电动机通断之间的关系图
p (t)
1
e m in e m ax e ( t )
双位作用规律
§1-3-1双位作用规律
p /X O m a x
X im a x p
K
R为量程系数,在单元组合仪表中,R=1,则PB=1/K×100%。
例: (65C 60C ) /(100C 50C ) 100% 32% (10mA 5mA) /(20mA 4mA)
当控制器的输出作100%(全行程,如阀开--关)变化时,其输入量变化(数值上等于被控量的 变化)的百分数。

比例微分调节器比例特点(一)

比例微分调节器比例特点(一)

比例微分调节器比例特点(一)比例微分调节器比例特点: 1. 比例微分调节器(PID)是一种常用的工业自动控制系统中的控制算法。

2. 比例微分调节器通过比例(P)、积分(I)和微分(D)三个参数来控制系统的稳定性和响应速度。

3. 调节器的比例部分在控制系统中起到了决定性的作用,是系统响应速度和稳定性的关键。

4. 比例微分调节器比例的设定是根据控制系统的性质和需求来确定的,不同的系统需要不同的比例参数。

5. 比例微分调节器比例可以通过调整比例参数来改变系统的闭环增益,从而控制系统的稳定性和响应速度。

6. 比例微分调节器比例在控制系统中的作用类似于增益控制器,可以改变系统的输出和输入之间的关系。

7. 比例微分调节器比例的选择需要经验和实验的支持,通过试错法可以找到最优的比例参数设置。

文章采用markdown格式,多采用标题副标题形式比例微分调节器比例特点:•比例微分调节器(PID)是一种常用的工业自动控制系统中的控制算法。

•比例微分调节器通过比例(P)、积分(I)和微分(D)三个参数来控制系统的稳定性和响应速度。

•调节器的比例部分在控制系统中起到了决定性的作用,是系统响应速度和稳定性的关键。

•比例微分调节器比例的设定是根据控制系统的性质和需求来确定的,不同的系统需要不同的比例参数。

•比例微分调节器比例可以通过调整比例参数来改变系统的闭环增益,从而控制系统的稳定性和响应速度。

•比例微分调节器比例在控制系统中的作用类似于增益控制器,可以改变系统的输出和输入之间的关系。

•比例微分调节器比例的选择需要经验和实验的支持,通过试错法可以找到最优的比例参数设置。

重要性•比例微分调节器比例在控制系统中扮演着非常重要的角色,它能够确保系统的稳定性和响应速度。

•比例部分决定了系统在面对改变时的灵敏度,即输出对于输入变化的反应程度。

•通过调节比例参数,可以平衡输出和输入之间的关系,以达到系统的最佳性能。

调参方法•在实际应用中,为了找到最优的比例参数,需要进行反复试验和调参。

比例微分调节器比例特点

比例微分调节器比例特点

比例微分调节器比例特点
比例微分调节器(PID控制器)的比例特点是指控制器输出与偏差(控制量与设定值的差)成正比。

当偏差增大时,控制器输出也相应增大,从而加大了对控制过程的调节作用。

比例特点可以使得系统快速响应,但是可能会引起系统的超调现象。

比例特点的特点主要有以下几点:
1. 快速响应:比例动作能够根据当前偏差的大小迅速调节控制器输出,使系统迅速接近设定值。

2. 稳态误差存在:比例控制器只根据偏差大小进行调节,而无法消除偏差。

在稳态时,可能会存在一定的偏差。

3. 容易引起超调:当比例增益过大时,可能会引起控制系统的超调现象,即系统在调节过程中,输出值超过设定值导致偏差反向,从而使系统产生过调和振荡现象。

4. 精度相对较低:由于比例控制器只根据偏差进行调节,不能对系统的动态特性进行调节,所以在一些复杂的控制场景中,比例控制器的精度相对较低。

需要注意的是,比例控制器通常会和积分和微分控制器结合使用,以获取更好的控制效果。

PID调节器比例增益、比例度、比例带是不是一回事?

PID调节器比例增益、比例度、比例带是不是一回事?

PID调节器比例增益、比例度、比例带是不是一回事?PID调节器的比例增益KP是比是例度δ的倒数,比例度和比例带是等效的。

现在的PID调节器、DCS系统和PLC系统中P大多指以比例增益。

为了便于理解,可以把的比例作用想象为一个双端指针,如图1所示。

支点在中间(相当于100%比例度),指针两端沿着偏差标尺和输出标尺移动,若测量值与给定值重合时,偏差为零,这就是PID调节器的正常工作点,也就是PID调节器的控制点,不管比例带多大,当PID调节器的输入偏差为零时,输出总是预设的比例偏置值(50%),输出值在此值上下变化以减小偏差,支点的位置确定了对于一定的偏差变化输出的大小,即支点在中间时测量值变化100%,输出就从0%变化到100%。

将支点向左移,为了使输出变化100%,则测量值变化减小到50%。

也即从设定值-25%~ 25%,同理当支点右移时,测量值已变化100%(即从程-50%~ 50%),输出变化仅为50%。

从上述可知比例作用就是PID调节器的输出信号与输入信号成比例关系,即:△P=Ke △Pi,即比例调节器就是一个放大倍数(即增益)可调的放大器。

比例增益和比例度都反映了调节器对偏差变化的灵敏度大小。

在电、气动调节器(控制器)中都不用比例增益作为刻度,而是用比例度来刻度的。

比例增益是指输出变化对偏差变化之比。

而比例度则是指调节器的偏差值占输出值变化的百分比。

这两种表示方法互为倒数关系,即:KP=1/δ。

比例增益和比例度的对应关系如图1所示。

图1 PID调节器比例作用示意图图2 比例增益和比例度的对应关系下面举个例子进行说明,某PID调节器用比例作用时,当输入5mA,出从4mA变化到20mA,此时该控制器的比例度和增益如下:δ=(5-4)/(20-4)=6.25%;KP=1/δ=16图3 调节器比例带示意图再谈谈比例带。

图3是一个最常见的过渡过程曲线,图中SP表示设定值;C 表示被调参数的变化。

斜线的带就是比例度δ。

比例调节器的结构

比例调节器的结构

比例调节器的结构
比例调节器(Proportional Controller)是一种常见的控制算法,其结构主要包括输入信号、比例增益和输出信号三部分。

1. 输入信号:这是需要被控制的物理量,例如温度、压力、流量等。

输入信号通过传感器或测量仪表获取,并输入到调节器中。

2. 比例增益:这是调节器的一个重要参数,它决定了调节器对输入信号的反应程度。

比例增益越大,调节器的输出变化与输入信号的变化成正比,调节速度越快。

3. 输出信号:这是调节器的控制信号,用于控制执行机构或控制回路,以改变被控对象的参数。

输出信号的大小取决于输入信号和比例增益的大小。

在比例调节器的结构中,输入信号与比例增益相乘,得到输出信号。

输出信号的大小反映了输入信号的大小,并通过执行机构或控制回路对被控对象进行控制。

需要注意的是,比例调节器只对输入信号进行比例放大,而不会对输入信号进行积分或微分处理。

因此,当输入信号变化时,输出信号只会立即跟随变化,而不会出现滞后或超调的情况。

这种特性使得比例调节器适用于一些对控制精度和稳定性要求较高的场合。

最小调节幅度公式

最小调节幅度公式

最小调节幅度公式最小调节幅度是指在一定条件下,系统或设备能够进行的最小的可调节的变化大小。

在实际生产或技术研究中,通常会对系统或设备进行调节来实现期望的目标或性能指标,此时需要了解系统或设备的最小调节幅度。

在工程或技术领域中有一些常见的最小调节幅度的公式和参考内容。

下面将对其中的一些进行介绍。

1. 比例调节器最小可控制参数变化幅度公式比例调节器是工业控制领域中经常使用的一种调节器,其输出量与被控量成比例。

比例调节器最小控制参数变化幅度公式如下:ΔS=X/100×ΔX其中,ΔS为比例调节器的输出变化量,X为被控参数的绝对值,ΔX为被控参数发生的变化量,单位为百分比。

该公式的含义是:被控参数每变化1%,比例调节器的输出量将会变化ΔS。

2. 标度盘最小划分值计算公式标度盘是一种被广泛应用的测量工具,在测量时采用标度盘进行读数。

标度盘最小划分值计算公式如下:δ=x/α×P其中,δ为标度盘最小划分值,x为标度盘的量程,α为显示面积对应刻度数,P为刻度圆盘的分度数。

该公式的含义是:刻度圆盘一周被分成P份,显示面积对应α刻度数,量程为x,则每份代表的物理量为x/P,在显示面积对应的刻度数下,每份的物理量为x/(Pα),即为标度盘的最小划分值。

3. 缩放系数最小变化量计算公式在数字化控制系统中,缩放系数代表着输入量与输出量的比例系数,其大小影响到系统的控制精度。

计算缩放系数最小变化量的公式如下:ΔK=K×ΔX/X其中,ΔK为缩放系数的最小变化量,K为缩放系数的当前值,ΔX为输入量的变化量,X为输入量的绝对值。

该公式的含义是:输入量每变化1个单位,输出量将会变化K×ΔX/X个单位,因此缩放系数的最小变化量为K×ΔX/X。

最小调节幅度在生产过程中具有重要作用,它关系到系统或设备的控制精度和生产效率。

因此在实际应用中,需要根据具体情况选择合适的最小调节幅度的公式和参考内容,以实现生产或技术上的目标和要求。

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比例调节器
比例调节器
所谓的比例调节器,就是一种按照比例调节规律变化的调节器,即调节器 的输出信号和它的输入信号成比例,简称P调节器。 由于比例调节器是根据输入偏差大小按比例指挥执行机构动作,从而改变 输出量,仅能减小偏差,而不能消除偏差,仍有静态偏差存在 。 假设从调节器输出信号为p(t),而他的输入信号为e(t) 则比例调节器的特性 方程为
比例调节器阶跃响应曲线
比例调节器应用场合和作用
• 通俗来讲就是放大或者缩 • 比例控制系统虽然存在静 小误差值 态偏差,但是这个偏差值 比例调节是按比例反应系 不是很大,与自有平衡能 力的控制对象受到扰动后, 统的偏差,系统一旦出现 被控量自行稳定在新稳态 了偏差,比例调节立即产 值上的变化量相比要小得 生调节作用用以减少偏差。 多,动态过程进行也要快 比例作用大,可以加快调 的多.因此广泛应用对被控 节,减少误差,但是过大 量稳态精度要求不是很高 的比例,使系统的稳定性 的场合 下降,甚至造成系统的不 稳定
p(t)=k*e(t)
k是比例调节器的放大倍数。放大倍数K大,在输入相同偏差 e(t)信号是,调节器输出p(t)大,也就是调节器指挥调节阀开 度的变化量大,我们就说他的比例作用强,反之,K小其换句话说,调节器采用比 例控制规律,就不可避免 的会使系统存在静差。这 是因为只有偏差信号e不 为零时,调节器才会有输 出调节。如果e为零,调 节器输出为零,就会失去 调节作用。或者说P调节 器正是利用偏差实现调节 控制,使系统被控参数近 似跟踪给定值的。
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