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Bulletin 2579-M1/UK

Installation ManualSeries D1FH

ProportionalDC Valve

Parker Hannifin GmbHHydraulic Controls DivisionGutenbergstr. 3841564 Kaarst, GermanyTel.: (+) 2131-513-0Fax: (+) 2131-513-230www.parker.com

Copyright 2000, Parker Hannifin GmbHContents

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2 Parker Hannifin GmbHHydraulic Controls Division

Proportional DC ValveSeries D1FHInstallation Manual

Hydraulics

IA D1FH UK A5.PM6.5 RH

Note

This document and other information from Parker Hannifin GmbH, itssubsidiaries, sales offices and authorized distributors provide product orsystem options for further investigation by users having technicalexpertise. Before you select or use any product or system it is importantthat you analyse all aspects of your application and review the informationconcerning the product or system in the current product catalogue. Due

to the variety of operating conditions and applications for these productsor systems, the user, through his own analysis and testing, is solelyresponsible for making the final selection of the products and systemsand assuring that all performance and safety requirements of theapplication are met. The products are subject to change by ParkerHannifin GmbH at any time without notice.

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General DescriptionThe Parker D1FH valve is a high response propor-tional servo valve with an on-board drive amplifier.The D1FH incorporates the use of state-of-the artdrive electronics with an LVDT for continuous

monitoring of the spool position. Zero lap spoolsare available for closed loop applications with twodifferent 'power down' configurations. The valvefeatures frequency response levels greater than100 Hz, along with low hysteresis and exellentrepeatability.

Operation

The D1FH valve uses a precision lapped spool andsleeve configured with four control positions. Duringnormal operation the valve will shift from the centerposition to either side providing flow out the 'A' or'B' port. When the enable signal is removed fromthe drive amplifier, the valve will shift to a fourthposition. The fourth position will block all four portsin one version. A second version that is availablewill block the 'P' port and allow the 'A' and 'B' portsto bleed to the 'T' (tank line).

NoteThe tank line to the valve must have a minimumpressure of (1.4 bar). Maximum pressure is 35 bar(500 PSI).

Features

On-Board Electronic Drive AmplifierIntegral electronics eliminates the need forcostly wiring between the valve and driver card.The unit is shipped as a factory preset andtested unit.

• High Frequency ResponseThe valve features a very high frequencyresponse which is necessary for many closedloop applications.

• Four Position Spool CapabilityThe four position spool provides predictableflow in the event of a power failure to thedrive electronics, within the limits of the powercurve.

• 315 Bar Pressure CapabilityThe maximum operating pressure rating for theD1FH is 315 Bar or 4500 PSI (40 L/M versionlimited to 210bar).

• Spool Position FeedbackThe LVDT continuous feedback monitoringcircuit provides low hysteresis and exellentrepeatability.

• Contaminant SensitivityThe D1FH operates with standard mineral oilbased fluids with a cleanliness level of ISOClass 16/13, SAE Class # 4.

• Drive Enable FeatureOutput to the coil is shut down when the enablesignal, (5 to 30 VDC), is not present. The valvewill then shift to the fourth position flow pathselected by the user (E50 or E80 spool).

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5 -

10 -

- -

20 -

40 -- 50

- 100

Flow [l/min] at p 35barper metering edgeD1FH

Code Seal

N NBR

V FPM

Code Style

H Control valve

Code

B

D

F

H

MP

G

D F

1

3

DC

valve

Spool

type

Code

24VDCJ

Supply voltageNominal size

NG06 / CETOP 3

NG10 / CETOP 5

Nominalsize

Code

Supplyvoltage

Code

Voltage / currentinput switchable

B

Electronicvariation

B

Code

E50

E80

QA = Q B

Spool type

Style

C

Seal

J 00

Electronic

variation

Code

4/4 directionalvalve

C

Variation

Design

seriesFlow

Flow

control

Variation

H

Ordering Code

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GeneralDesign Pilot-operated proportional DC valve with integrated power amplifierActuation Proportional solenoidMounting position optionalEnvironmental temperature [°C] 0...60

HydraulicsPressure medium Hydraulic oil as per DIN 51 524 ... 535Viscosity, recommended [mm²/s] 30 ... 80

max. admiss. [mm²/s] 20 ... 380Oil temperature [°C] 0 ... +60Filtration Permitted contamination class of pressure medium as per NAS 1638 class 7

to achieve with filter x = 75; X = 10Mounting pattern DIN 24340 / ISO 4401 / CETOP RP121 / NFPAOperating pressure [bar] Port P, A, B, max. 315; Port T min. 1,4, max. 35

Nominal size, DIN NG06 NG10CETOP 03 05

Weight [kg] 3.7 7.7Nominal flow at p=35bar D1FH D3FHper metering edge [l/min] 5, 10, 20, 40 50, 100Drain, max. [l/min] 1.0 2.0

Static / DynamicHysteresis [%] < 0.5 < 0.5Reversible span [%] < 0.1 < 0.1Sensitivity [%] < 0.1 < 0.1Response time [ms] 16 25

Integrated electronicsSupply voltage [V] 18 ... 30 18 ... 30Power consumption [VA] 30 55Current requirement [A] 2 2Current consumption max. [A] 4 4Input signal

Polarity D against E positive corresponds to P-A, B-T, negative corresponds to P-B, A-TVoltage [V] ±10Impedance [kOhm] 100Current [mA] ±20Impedance [Ohm] 500

Diagnostic output PIN F [V] ±10Protection class IP65, NEMA 4

Plug 6 + PE DIN 43563

Technical Data

EN 50081-2 EN 55011EN 50082-2 ENV 50140 EN 61000-4-4

ENV 50204 EN 61000-4-5EN 61000-4-2 EN 61000-4-6

EMC

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Valve TypeD1FH***C*BJ00, "B" VersionThis is the standard version which operates off a24 VDC supply, accepts a ± voltage or currentcommand and interfaces to the system through a7 pin I/O connector located on the conduit box.InstallationRefer to the back of the manual for fluidrecommendations, mounting restrictions and othergeneral installation instructions.Refer to Catalogue 2500/UK for the performancecurves and valve dimensions for the D1FH.

Interface - 7 Pin I/0 Connector

Power Supply 24 VDC nominal/ 2.0 Amps4.0 Amps Peak (

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Initial Startup

• With no command input, turn on DC power.

• Turn on the Enable signal

• Slowly increase pressure. If there is flow with nocommand input, it may be necessary to NULLthe valve. Refer to the Troubleshooting section.

• Decrease pressure and connect command. Forinitial setup, the external closed loop gain shouldbe minimum and the pressure at a low setting.

• Once the system is operational, increase the

system gain and increase the system pressure.

Functional Block Diagram, Version B

* Factory adjustments - DO NOT ADJUST

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Symptom Cause Solution

Instability Power Supply? Select a power supply not current limited below 4.0 A Use aseparate power supply for each valve. The power supply must bechassis grounded.

Noise on inputs? To verify, remove input signals and short + CMD to - CMD. Forbest noise immunity, connect input signals (2 wires for eachinput) directly to the command source. This is a 100 Hz valve so60 hertz noise at the inputs will be amplified.

System Gain? Initial startup should be with the external feedback loop gain at aminimum value and lower pressure. Oscillation maybe a result ofhigh loop gain. (Note: With motion controllers minimum gain maybe lower than one).

Oil Temperature? The oil temperature should be within the 100° F to 140° F range.(Viscosity range = 75 to 300 SSU).

Air in valve? High frequency operation with low tank line pressure could resultin air in the valve. The suggested tank line pressure is for > 25PSI. To eliminate air, apply a low pressure and cycle the valve ata low frequency with a command of approximately. ± 10 VDC (or± 20 mA)

Valve Gain? Adjust potentiometer R60 CCW to decrease valve gain.

Null System Variations? The valve was nulled for a double rod cylinder. If excessive driftoccurs with no inputs connected, null the valve for minimum flowor movement by slowly adjusting potentiometer R2. This shouldrequire less than ± 3 turns from the set value.

Low Flow Flow Limited? Verify potentiometer R1 is fully CW. Verify command input is 10VDC for maximum flow.

Floating Input? Connect the unused CMD input to source common.

System Pressure? Verify that the system pressure is set as required and there areno other flow paths.

No Flow Power? Verify there is power to the board and it is wired with the correctpolarity.Verify that the ENABLE signal is present.Verify that the connections to the valve subplate are correct.

Full Flow Phasing? If connected to an external feedback system, verify open loopoperation of valve with a potentiometer. Improper system phasingwould result in maximum Command input.

Cylinder Extended/ Phasing? System phasing is incorrect. Try reversing the system CMD orRetracted and Fdbk inputs.

Won't ReturnFlow With No Enable System Dynamics? The spool will return to the fourth position only if the system dy-

namic flows and pressures are within the power capacity envelop.The fourth position is subject to all Bernoulli flow forces, radialhydraulic lock forces and other forces that affect all directionalcontrol valves. The system designer must determine if the dynamicflows and pressures in the system will prevent the spool fromreturning to the fourth position. This would have to be verified withfull load testing.

As with any spool valve, the user should not rely on the valve tohold loads in place. The leakage rate through the fourth positionblocked center spool (80 spool) will allow an unloaded single rodcylinder to extend. This occurs with any blocked center four-wayvalve.

Trouble Shooting

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For maximum valve reliability, adhere to thefollowing Installation Information.

Fluid RecommendationsPremium quality hydraulic oil with a viscosity rangebetween 150-250 SSU (32-54 cst.) at 38° C (100°F)

is recommended. The absolute operation viscosityrange is from 15 - 300 (15 - 44 cst.) Oil should havemaximum anti-wear properties and rust and oxida-tion treatment.FiltrationFor maximum valve and system component life,the system should be protected from contamina-tion at a level not to exceed 125 particles greaterthan 10 microns per milliliter of fluid. (SAE Class 4or better / ISO Code 16/13). Flushing the systemprior to valve installation is recommended on newinstallations.SiltingSilting can cause any sliding spool valve to stick,and not spring return, if held shifted unser pressurefor long periods of time. The valve should be cycledperiodically to prevent sticking.Special InstallationsConsult your Parker representative for any appli-cation requiring the following:• Pressure above rated.

• Fluid other than those specified.´ Synthetic or fire-resistant fluids.• Oil temperature above 60°C.• Flow path other than normal.• Non-standard power supply grounding.

Torque Specifications

The recommended torque values for the boltswhich mount the valve to the manifold or subplateare as follows:

NFPA Size Bolt Thread TorqueSize

D03 M5 x 0.8 5.6 Nm

Mounting RestrictionIn order to ensure proper operation, the D1FHmust be mounted horizontally. If the valve ismounted vertically, a check valve with a minimumrating of 1.4 Bar (20 PSI), should be placed in the

tank line to maintain back pressure to the valve.Tank Line Surges

If several valves are piped with a comman tankline, flow surges in the line may cause an unexeptedspool shift. Separate tank lines should be usedwhen line surges are expected.

Subplate Specifications

Subplate Port Size Location Max.Pressure

SPD23 3/8"NPTF Bottom 210 bar

SPD2330 3/8" NPTF Bottom 350 bar

SPD23S 9/16-18 NPTF Bottom 210 bar

SPD23SA 9/16-18 NPTF Side 210 bar

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Dimensions

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