servo-performance proportional directional valves with feedback · 2021. 1. 23. · kbs – ser vo...

Servo-Performance ProportionalDirectional Valves with FeedbackPressures to 315 bar (4500 psi) KBSDG4V-5

1* Series

2 EATON Vickers Proportional Directional Valves with Feedback KBSDG4V-5, V-VLPO-MC006-E August 2008

Contents

IntroductionGeneral Description 3Features and Benefits 3Typical Section View 3

Model Code 4Spool Data 5Functional Symbol 5Operating Data 6Pressures and Flow Rates 7Performance Curves

Flow Gain 8Pressure Gain 8Power Capacity Envelopes 8Frequency Response 9

Installation Dimension 10Subplates and Mounting Surfaces 11Electrical Information

Block Diagram Voltage Input M1 14Block Diagram Current Input M2 15Typical Connection Arrangements M1 16Typical Connection Arrangements M2 17

Application DataFluid Cleanliness 18Hydraulic Fluids 18Installation 18Mounting Bolt Kits 18Seal Kits 18Electrical Connectors 18Service Information 18

3EATON Vickers Proportional Directional Valves with Feedback KBSDG4V-5, V-VLPO-MC006-E August 2008

Introduction

General Description

The KBSDG4V-5 line offers arange of proportional direc-tional valves with integralcontrol electronics. Factory-set adjustments of gain andoffset ensure consistentreproducibility valve-to-valve.

These four-way solenoidoperated proportional valveshave a high dynamic per-formance which enablesthem to be used in closed-loop applications, previouslypossible only with servovalves. Various spool optionsare available for rated flowsup to 80 L/min (21 USgpm).Working pressures are to315 bar (4500 psi). The spoolposition is monitored by anLVDT which feeds back infor-mation to the amplifier,enabling spool position to beaccurately maintained.

This valve is available with anintegral amplifier builtdirectly on to the valve.The only electrical inputsrequired are power supply(24V) and a command signal,either ±10V or 4-20 mA(model code selectable). Theamplifier is housed in arobust metal enclosure,sealed against ingress ofwater and other fluids.Electrical connections are viaan industry standard 7-pinplug.A spool position monitor pinallows the function of thevalve to be electricallymonitored. Ramp functions,if required, can be generatedexternally.

Features and Benefits• Wide range of zero lap

spool and flow rateoptions.

• Supported by a broadrange of auxiliary functionmodules.

• Electronic feedback LVDTensures accurate spoolposition control.

• Internal current feedbackprovides optimal control.

• Vibration and shocktested.

• Full CE electromagneticcompatibility.

• Factory-sealedadjustments ensure valve-to-valve reproducibility.

• Installation wiring reducedand simplified.

• Standard 7-pin connector.• Standard 24V DC supply

with wide tolerance band.

• Optional command signal,±10V or 4-20 mA (modelcode selectable).

• Valve with integratedamplifier selected,ordered, delivered andinstalled as oneperformance-testedpackage.

• Spool position monitor pinto help withtroubleshooting.

• Simple valve removal andreplacement for service(plug & play).

• IP67 valve, environmentalprotection rating.

• Optional valve enablefunction.

Typical Section View

KBSDG4V-5


Model Code

Va l ve typeKBS – Servo performanceproportional valve with integralamplifier and electronicfeedback

C o n t rol typeD – Directional valve

M o u n t i n gG – Subplate mounted

O p e ra t i o n4 – Solenoid operated

P re s s u re ra t i n gV – 315 bar (4500 psi)

I n te r fa c e5 – ISO 4401, size 05-04-0-05H6 model code

5 – ISO 4401, size 05-06-0-05H7 model code

Spool type, c e n ter condi-t i o n9 – Zero underlap

Spool type, s p ring off s e tc o n d i t i o n2 – P,A,B,T blocked

6 – P blocked, A & B to tank

Note: 6 spool must be used inH6 configuration

R a ted flow at 70 bar( 1000 psi) loop ∆p pre s s u red ro p25 – 25 L/min (6.5 USgpm)

50 – 50 L/min (13.0 USgpm)

80 – 80 L/min (21.0 USgpm)

For actual maximum flow referto Power capacity envelopecurves, page 8-9.

Command SignalM1 – ±10V voltage commandsignal

M2 – 4-20 mA currentcommand signal

E l e c t rical connectionPC7 – 7 pin connector withoutplug

PE7 – 7 pin connector withplug

PH7 – As PE7 but with pin“C” used for enable signal

PR7 – As PC7 but with pin“C” used for enable signal

E l e c t rical powe rH – 24V DC amplifier supply

Po rt T pre s s u re limit code6 – 160 bar

7 – 210 bar

Design number1* series. Subject to change

14

13

12

11

10

9

8

7

6

5

4

3

2

1

WARNINGValves with integralamplifiers are

supplied with or without themetal 7-pin plug.The Vickers™ plug, part no. 934939, must becorrectly fitted to ensure thatthe EMC rating and IP67

rating are achieved. The plugretaining nut must betightened with a torque of2,0-2,5 Nm (1.5-2.0 lbf ft),and the cable clamp (cableoutside diameter range,8,0–10,5 mm (0.31–0.41)inches] tightened as requiredto effect a proper seal.


Spool DataSpool Symbols

Spool code Spool symbol Flow ratingFor KBSDG4V-5 valves:

92L25 92L 25 L/min (6.5 USgpm)92L50 92L 50 L/min (13 USgpm)92L80 92L 80 L/min (21 USgpm)96L25 96L 25 L/min (6.5 USgpm)96L50 96L 50 L/min (13 USgpm)96L80 96L 80 L/min (21 USgpm)

Spool Types and FlowRatings

Symmetric SpoolsBase line pressure drop ∆p = 35 bar (500 psi) permetering flow path, e . g. B to T. For actu a lmaximum flow refer to p ower capacity enve l o p ec u rve s .

Available Spools for KBSDG4V-5

Spool type 92L Spool type 96L

Functional Symbol

Model Types KBSDG4V-5proportional directional valve (with integral electronics)

Data is typical, with fluid at 36 cST (168 SUS) and 50°C (122°F)Power supply 24V DC (21V to 36V including 10% peak-to-peak max ripple)

max current 3,7ACommand signalVoltage mode 0 to 10V DC, or 0 to –10V DC, or –10V to +10V DC Input impedance 47 kΩCommon mode voltage to pin D 18V (max)Current mode 4-20 mAMax differential voltage to pin E to pin B 100 mVInput impedance for current mode 100ΩValve enable signal for model code PH7 & PR7

Enable >8.5V (36V max)Disable


Operating Data

Pressures and FlowRatesH7 Option only

Maximum pressures,bar (psi)Port L condition Ports P, A, B T LNormally blocked by mounting surface 315 (4500) 160 (2300) 160 (2300)Drained directly to tank 315 (4500) 210 (3000) 10 (145)

Continued from previous pageSupporting products:

Auxiliary electronic modules (DIN-rail mounting):EHA-CON-201-A2* signal converter See catalog GB 2410AEHD-DSG-201-A-1* command signal generator See catalog GB 2470EHA-RMP-201-A-2* ramp generator See catalog GB 2410AEHA-PID-201-A-2* PID controller See catalog GB 2427EHA-PSU-201-A-10 power supply See catalog GB 2410A

Relative duty factor Continuous rating (ED = 100%)Hysteresis

Flow GainFlow from port P-A-B-T or P-B-A-T at 70 bar (1000 psi) totalvalve ∆p (35 bar (500 psi) per metering edge)


PerformanceCurves

Pressure Gain∆p between ports A and B or B and A, as % of port Ppressure

Power Capacity Envelopes

KBSDG4V-5-9*L25 At other pressure drop (∆p) values, flow rates Qxapproximate to:

where QD= Datum flow rate∆pD= Pressure drop at datum flow rate∆pX= Required ∆p

Limited by valve capacity. Refer to Power Capacityenvelope.


PerformanceCurves

Frequency Response, typicalFor amplitudes of ±5%, ±10%, ±25% with zero offset. ∆p (P to T) = 70 bar (1000 psi)

KBSDG4V-5-9*L50 KBSDG4V-5-9*L80

Power Capacity Envelopes

Frequency ResponseLooped flow at 70 bar valve pressure dropAmplitudes based on % of rated flow


InstallationDimensionsmm (inch)

Amplifier and solenoid assembly may be rotated 90° asshown by removing 4 screws shown X.Re-torque to 13-15 Nm (10-11 lbf ft)▲ Mounting surface seals supplied. For mounting surfa c edimensions and subplate options see page 8.▼ Bleed screw locationsAir bleed, socket head cap screwTorque to 2,5-3,0 Nm (2.0-2.5 lbf ft )

WARNINGValves with integralamplifiers are

supplied with or without themetal 7-pin plug.The Vickers™ plug, part no. 934939, must be

correctly fitted to ensure thatthe EMC rating and IP67rating are achieved. The plugretaining nut must betightened with a torque of2,0-2,5 Nm (1.5-2.0 lbf ft) toeffect a proper seal.


Subplates andMountingSurfaces

General DescriptionWhen a subplate is not used,a m a chined pad must bep r ovided for va l ve mounting.Pad must be flat within0 , 0127 mm (.0005 inch) andsmooth within 1,6 µm (63m i c r o i n ch). Mounting bolts,when provided by customer,should be ISO 898 class 12 . 9or bett e r.

Dimensional TolerancesDimensional tolerance oninterface drawings is ±0,2mm (±0.008”) except whereotherwise stated. ISO 4401specifies inch conversion to±0.01”.

Conversion from MetricISO 4401 gives dimensionsin mm. Inch conversions areaccurate to 0.01” unlessotherwise stated.

Mounting Bolt TappingsISO 4401 gives metric threadtappings. Alternate UNCtappings are Eatonrecommendations that allow

these plates and associatedvalves to be used up to theirmaximum pressures, whenusing Eaton recommendedbolt kits, or bolts of anequivalent strength. It isrecommended thatCustomer’s own manifoldblocks for UNC bolts shouldbe tapped to the minimumdepths given in thefootnotes.

Installation DimensionsSubplates with Rear Ports P,T, A, B, Maximum Pressure210 bar (3000 psi)

Model Ports P, T, A, B Threads210 bar (3000 psi) KDGSM-5-676805-2 3/4” -16 UNF-2B x 14,0 (0.56) full thread depth280 bar (4000 psi) EKDGSM-01Y-10-R G 1/2 (1/2” BSPF) x 15,0 90.59 full thread depthDimensions Model C E F G H J K M N W210 bar (3000 psi) 45,2 42,1 19,0 68,3 45,2 23,8 42,1 31,8 23,8 57,1KDGSM-5-676805-2 (1.78) (1.66) (0.75) (2.69) (1.78) (0.94) (1.66) (1.25) (0.94) (2.25)280 bar (4000 psi) 39,7 40,5 9,9 70,6 39,7 10,7 40,5 36,5 28,6 72,6EKDGSM-01Y-10-R (1.56) (1.59) (0.39) (2.78) (1.56) (0.42) (1.59) (1.44) (1.13) (2.86)

Model type KDGSM-5-676805-2*(with rear port L))

Model type EKDGSM-01Y-1*-R (with side port L))


Subplates andMountingSurfaces

Installation DimensionsSubplates with Rear Ports P,T, A, B, L, MaximumPressure 315 bar (4500 psi)

Model types: KDGSM-5-615225-1*KDGSM-5-615226-1*

All dimensions in mm(inches)

Ports P, T, A, BModel Y Thread Z diameterKDGSM-5-615225-10 G1/2 (1/2” BSPF) x 14,0 (0.55) full thread depth 30,0 (1.18)KDGSM-5-615226-10 G3/4 (3/4” BSPF) X 16,0 (0.63) full thread depth 33,0 (1.30)


MountingSurfaces

Mounting SurfaceInterface to ISO 4401(Size 05)This interface conforms to:ISO 4401-05-04-0-05ANSI/B93.7M (and NFPA)size 05CETOP R35H4.2-05DIN 24340 Form A10

Interface with AdditionalDrain PortThe interface conforms to:ISO 4401-05-06-0-05, plushole “L”Typically used forproportional and other valvesrequiring an additional drainport.


ElectricalInformation

WARNINGAll power must beswitched off before

connecting or disconnectingany plugs.

▲ Pin C is used for a valve enable signal with electrical connections PH7 and PR7.

Block DiagramVoltage Input (M1)KBSDG4V-5

Command Signals and Outputs, M1

7-pin plug Flow direction Pin D Pin EPositive OV

P to AOV NegativeUD - UE = PositiveNegative OV

P to BOV PositiveUD - UE = Negative

KBSDG4V-5 WiringConnections must be madevia the 7-pin plug mountedon the amplifier. See page16-17 of this leaflet andEaton’s Installation WiringPractices for Vickers™Electronic Products, leaflet2468. Recommended cablesizes are shown below:

Power cables:For 24V supply0,75 mm2 (18 AWG) up to20m (65 ft)1,00 mm2 (16 AWG) up to40m (130 ft)

Signal cables:0,50 mm2 (20 AWG)

Screen (shield):A suitable cable would have7 cores, a separate screenfor the signal wires and anoverall screen.Cable outside diameter8,0–10,5 mm (0.31–0.41inches)See connection diagram onpage 16.


KBSDG4V-5 WiringConnections must be madevia the 7-pin plug mountedon the amplifier. See page16-17 of this leaflet andEaton’s Installation WiringPractices for Vickers™Electronic Products, leaflet2468. Recommended cablesizes are shown below:

Power cables:For 24V supply0,75 mm2 (18 AWG) up to20m (65 ft)1,00 mm2 (16 AWG) up to40m (130 ft)

Signal cables:0,50 mm2 (20 AWG)

Screen (shield):A suitable cable would have7 cores, a separate screenfor the signal wires and anoverall screen.Cable outside diameter8,0–10,5 mm (0.31–0.41inches)See connection diagram onpage 17.


Block DiagramCurrent Input (M2)KBSDG4V-5

WARNINGAll power must beswitched off before

connecting/disconnectingany plugs.

▲ Pin C is used for a valve enable signal with electrical connections PH7 and PR7.

R1 shunt resistor 100R

F1, F2 resettable fuse

Command Signals and Outputs, M2

7-pin plugPin D Pin E Pin B Flow directionMore than Current Power12 mA return ground P to ALess than Current Power12 mA return ground P to B


Wiring ConnectionsVoltage Input (M1)■ Spool position monitorvoltage (pin F) will bereferenced to the KB valvelocal ground.

WARNINGDo not ground pin C.

Wiring Connections for M1Valves with Enable Feature▲ Note: In applicationswhere the valve mustconform to EuropeanRFI/EMC regulations, theouter screen (shield) mustbe connected to the outershell of the 7 pin connector,and the valve body must befastened to the earth ground.Proper earth groundingpractices must be observedin this case, as anydifferences in commandsource and valve groundpotentials will result in ascreen (shield) ground loop.




WARNINGElectromagneticCompatibility (EMC)

It is necessary to ensure thatthe valve is wired up asabove. For effectiveprotection the user electricalcabinet, the valve subplate ormanifold and the cable

screens should beconnected to efficientground points. The metal 7pin connector part no.934939 should be used forthe integral amplifier.In all cases both valve andcable should be kept as faraway as possible from anysources of electromagnetic

radiation such as cablescarrying heavy current, relaysand certain kinds of portableradio transmitters, etc.Difficult environments couldmean that extra screeningmay be necessary to avoidthe interference.It is important to connect the0V lines as shown above.

The multi-core cable shouldhave at least two screens toseparate the demand signaland monitor output from thepower lines.The enable line to pin Cshould be outside the screenwhich contains the demandsignal cables.

Wiring ConnectionsCurrent Input (M2)■ Spool position monitorvoltage (pin F) will bereferenced to the KB valvelocal ground.

WARNINGDo not ground pin C.

Wiring Connections for M2Valves with Enable Feature▲ Note: In applicationswhere the valve mustconform to EuropeanRFI/EMC regulations, theouter screen (shield) mustbe connected to the outershell of the 7 pin connector,and the valve body must befastened to the earth ground.Proper earth groundingpractices must be observedin this case, as anydifferences in commandsource and valve groundpotentials will result in ascreen (shield) ground loop.


ApplicationData

Fluid CleanlinessProper fluid condition isessential for long andsatisfactory life of hydrauliccomponents and systems.Hydraulic fluid must have thecorrect balance ofcleanliness, materials andadditives for protectionagainst wear of components,elevated viscosity andinclusion of air.Recommendations oncontamination controlmethods and the selection ofproducts to control fluidcondition are included inEaton’s publication 9132 or561, “Vickers™ Guide toSystemic ContaminationControl”. The book alsoincludes information on theEaton concept of “ProActiveMaintenance”. The followingrecommendations are basedon ISO cleanliness levels at 2µm, 5 µm and 15 µm.For products in this catalogthe recommended levels are:0 to 70 bar (1000 psi):18/16/1370+ bar (1000 + psi):17/15/12

Eaton products, as anycomponents, will operatewith apparent satisfaction influids with higher cleanlinesscodes than those described.Other manufacturers willoften recommend levelsabove those specified.Experience has shown,however, that life of anyhydraulic components isshortened in fluids withhigher cleanliness codesthan those listed above.These codes have beenproven to provide a longtrouble-free service life forthe products shown,regardless of themanufacturer.

Hydraulic FluidsMaterials and seals used inthese valves are compatiblewith antiwear hydraulic oils,and non-alkyl-basedphosphate esters. Theextreme operating viscosityrange is 500 to 13 cSt (2270to 70 SUS) but therecommended running rangeis 54 to 13 cSt (245 to 70SUS).

InstallationThe proportional valves inthis catalog can be mountedin any attitude, but it may benecessary in certaindemanding applications, toensure that the solenoids arekept full of hydraulic fluid.Good installation practicedictates that the tank portand any drain port are pipedso as to keep the valves fullof fluid once the systemstart-up has been completed.

Mounting Bolt KitsFor KBSDG4V-5BKDG01633M (metric)BKDPNG40706 (inch)If not using Eatonrecommended bolt kits,bolts used should be toISO 898, 12.9 or better.

Seal KitsKBSDG4V-5 ..........02-332751

Electrical ConnectorsKBSDG4V7-pin plug (metal).......9349397-pin plug (plastic)......694534(metal plug must be used forfull EMC protection)

Service InformationThe products from this rangeare preset at the factory foroptimum performance;disassembling critical itemswould destroy thesesettings. It is thereforerecommended that shouldany mechanical or electronicrepair be necessary theyshould be returned to thenearest Eaton repair center.The products will berefurbished as necessary andretested to specificationbefore retur.Field repair is restricted tothe replacement of the seals.Note: The feedback/solenoidassembly installed in thisvalve should not bedisassembled.

Typical Part Numbers and Model Codes5996524-001 KBSDG4V-5-92L-50-M1-PE7-H7-11 5996528-001 KBSDG4V-5-96L-50-M1-PE7-H7-115996525-001 KBSDG4V-5-92L-80-M1-PC7-H7-11 5996533-001 KBSDG4V-5-96L-50-M2-PE7-H7-115996526-001 KBSDG4V-5-92L-80-M1-PE7-H7-11 5996529-001 KBSDG4V-5-96L-80-M1-PC7-H7-115996527-001 KBSDG4V-5-92L-80-M1-PH7-H7-11 5996530-001 KBSDG4V-5-96L-80-M1-PE7-H7-115996532-001 KBSDG4V-5-92L-80-M2-PE7-H7-11 5996531-001 KBSDG4V-5-96L-80-M1-PH7-H7-11

© 2007 Eaton CorporationAll Rights ReservedPrinted in USADocument No. V-VLPO-MC006-ESupersedes 5071.03/EN/1097/AAugust 2008

EatonHydraulics Operations USA14615 Lone Oak RoadEden Prairie, MN 55344USATel: +1 952 937 9800Fax: +1 952 294 7722www.hydraulics.eaton.com

EatonHydraulics Operations Asia Pacific11th Floor Hong Kong New World Tower300 Huaihai Zhong RoadShanghai 200021ChinaTel: +86 21 6387 9988Fax: +86 21 6335 3912

EatonHydraulics Operations EuropeRoute de la Longeraie 71110 MorgesSwitzerlandTel: +41 21 811 4600Fax: +41 21 811 4601

servo-performance proportional directional valves with feedback · 2021. 1. 23. · kbs – ser vo...

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