Proportional Two-Stage Directional Valves Servo Performance with Double Spool Feedback. KBHDG5V-5/7/8/10 12 Design Pressures to 350 bar (5000 psi)
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1 Proportional Two-Stage Directional Valves Servo Performance with Double Spool Feedback KHDG5V-5/7/8/1 12 Design Pressures to 35 bar (5 psi)
2 Contents INTRODUCTION General description....3 Features and benefits....3 Typical section....3 MODEL CODE 4 SPOOL DT 6 FUNCTIONL SYMOL 6 OPERTING DT 8 PRESSURES ND MINIMUM FLOW RTES 9 PERFORMNCE CURVES 1 Power capacity envelope....1 Pressure gain....1 Frequency response...1 Flow gain DIMENSION KHDG5V-5/7/8/1 14 MOUNTING SURFCE INTERFCE KHDG5V-5/7/8/1 16 ELECTRICL INFORMTION 18 lock diagram...18 Typical connection arrangements...18 PPLICTION DT 22 Fluid cleanliness...22 Hydraulic fluids...22 Installation Service information This product has been designed and tested to meet specific standards outlined in the European Electromagnetic Compatibility Directive (EMC) 214/3/EU which repealed Directive 89/336/EEC, amended by Directives 91/263/EEC, 92/31/EEC, 93/68/EEC and 93/97/EEC. For instructions on installation requirements to achieve effective protection levels, see the leaflet and Installation Wiring Practices for Eaton s Electronic Products leaflet Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC). 2 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
3 Introduction General description Eaton proportional valves shown in this catalog are suitable for working pressures up to 35 bar (5 psi) and flow rates to 72 l/min (19 USgpm). They are designed to provide a controlled oil flow in proportion to a command signal, with spool position feedback to provide accurate control. Zero lapped spools are available for closed loop control applications and hydrostats are available for load compensation. KHDG5V-5/7/8/1 range of proportional directional valves with control amplifiers built directly on, and prewired to the valves. Factory-set adjustments of gain, spool deadband compensation, and offset ensure high valve-to-valve reproducibility. The only electrical inputs required are power supply (24V) and a voltage command signal of ±1V. The amplifier is housed in a robust metal enclosure, sealed against ingress of water and other fluids. Electrical connections are via a standard 7-pin plug. spool position monitor point allows the function of the valve to be electrically monitored. Ramp functions, if required, can be generated externally. Features and benefits Factory-sealed adjustments increase valve-to valve reproducibility. Valve with integrated amplifier selected, ordered, delivered and installed as one performance tested package. Electronic feedback LVDT ensures accurate spool position control. Vibration and shock tested. Standard 24V DC supply with wide tolerance band. Wide range of spool and flow rate options. Standard ± 1V DC and 4-2m command signals. Installation wiring reduced and simplified. Standard 7-pin connector. Simple valve removal and replacement for service. Supported by auxiliary function modules. Full CE electromagnetic compatibility /3/EU IP65 and IP67 environmental protection rating. Optional valve enable function. Optional pilot pressure reducer. Typical section view KHDG5V-7, 12 design KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
4 Model code K H D G 5 V -*- ********* (E)X T ** *** - H 4 ** Valve type K 2 Integral amplifier Proportional valve 3 Feedback arrangement H 4 Control type D 5 Mounting G 6 Operation Integral amplifier series From pilot and main stages Directional valve Subplate mounted 4 Solenoid controlled, pilot operated 7 Pressure rating V 31 bar (45 psi) Size 5 35 bar (5 psi) Size 7 35 bar (5 psi) Size 8 35 bar (5 psi) Size 1 8 Interface ISO Size 5 7 Size 7 8 Size 8 1 Size 1 9 Spool type, flow rating and metering See Functional Symbol on page 7. per metering flow path, e.g. to T. Symmetric spools for KHDG5V-5 valves: 2CN L/min (26 US gpm) 33C8N 8 L/min (21 US gpm) 5C85N 85 L/min (22 US gpm) p = 5 bar (72 psi) For KHDG5V-1 valves: 2C7N 7 L/min (185 US gpm) 33C7N 7 L/min (185 US gpm) 5C72N 72 L/min (19 US gpm) symmetric spools First figure (***N) is flow rating, or -T ( port flow); last figure (N***) is flow rating P-, or -T ( port flow) For KHDG5V-5 valves: 2C7N45 7 L/min (18.5 US gpm), port flow 45 L/min (11.9 US gpm), port flow 33C6N4 6 L/min (17.2 US gpm), port flow 4 L/min (1.6 US gpm), port flow PQ87F See flow charts (p.11) For KHDG5V-7 valves: 2C15N85 15 L/min (4 US gpm), port flow; +85 L/min (22.4 US gpm), port flow 33C13N65 13 L/min (33.3 US gpm), port flow; 65 L/min (17.2 US gpm), port flow 5C2N115 2 L/min (52.8 US gpm), port flow; 115 L/min (3.8 US gpm), port flow PQ19F See flow charts (p.11) For KHDG5V-8 valves: 2C375N L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow 12C375N25 33C375N25 133C375N25 733C375N25 72C375N25 PQ375F 375 L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow 375 L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow 375 L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow 375 L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow 375 L/min (99 US gpm), port flow; 25 L/min (66 US gpm), port flow See flow charts (p.12) For KHDG5V-7 valves: 2C2N 2 L/min (52 US gpm) 33C16N 16 L/min (42 US gpm) 5C2N 2 L/min (52 US gpm) For KHDG5V-8 valves: 2C375N 375 L/min (99 US gpm) 33C375N 375 L/min (99 US gpm) 5C375N 375 L/min (99 US gpm) 4 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
5 Model code For KHDG5V-1 valves: 2C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow 33C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow 12C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow 133C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow 72C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow 733C7N42 7 L/min (185 US gpm), port flow; 42 L/min (11 US gpm), port flow PQ68 F See flow charts (p.13) For actual maximum flows refer to power capacity envelopes, page 1. 1 Pilot supply lank E X EX Internal (without reducer) External (without reducer) Internal (with reducer) External (with reducer) See section on maximum pressures (page 9) for when pilot reducer must be used. 12 Electrical control signal M1 M2 M3 M4 13 Electrical connection PE7 PH7 14 Coil rating H +/-1V command and +/-1V feedback 4-2m command and +/-1V feedback +/-1V command and 4-2m feedback 4-2m command and 4-2m feedback 7 pin connector with plug s PE7 but with pin C used for enable signal 24 VDC amplifier supply 15 Port T pressure limit rating 4 5 bar (7 psi) (for internal pilot drain option only, item 11 above) 16 Design number series Note: dditional configurations available upon request. Please contact you customer sales representative for details. 11 Pilot drain T Internal Omit for external drain WRNING Valves with integral amplifiers are supplied with or without the metal 7-pin plug. The Eaton plug, part no , must be correctly fitted to ensure that the EMC rating and IP67 rating are achieved. The plug retaining nut must be tightened with a torque of Nm ( lbf ft) to effect a proper seal. KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
6 Spool data Spool type and flow ratings Valves with 5C spools are designed so that with the valve disabled the pressure in port is at least twice that in port (blocked ports). pplication notes Main-spool options Spools shown are meter-in/meter-out types. Center-condition options are types 2, 33, 5, 12, 133, 72, 733 and PQ. Internally Piloted Models Differ from detailed symbols above by omission of plug and the blocking of port X by the mating surface. Internally pilot drain models Differ from detailed symbols above by omission of plug and blocking of port Y by the mating surface. Symmetric spools ase line pressure drop øp =5 bar (72 psi) per metering flow path, e.g. to T. For actual maximum flow refer to power capacity envelope curves. symmetric spools Figure preceding metering type designator, N e.g. 2C**N) is flow rating P, or T ( port flow): Figure after N (N***) is flow rating P, or T ( port flow). Symmetric Spool code Spool symbol Flow rating For KHDG5V-5 valves: 2CN 2C L/min (26 USgpm) 33C8N 33C 8 L/min (21 USgpm) 5C85N 5C 85 L/min (22 USgpm) For KHDG5V-7 valves: 2C2N 2C 2 L/min (52 USgpm) 33C16N 33C 16 L/min (42 USgpm) 5C2N 5C 2 L/min (52 USgpm) For KHDG5V-8 valves: 2C375N 2C 375 L/min (99 USgpm) 33C375N 33C 375 L/min (99 USgpm) 5C375N 5C 375 L/min (99 USgpm) For KHDG5V-1 valves: 2C7N 2C 7 L/min (185 USgpm) 33C7N 33C 7 L/min (185 USgpm) 5C72N 5C 72 L/min (19 USgpm) Functional symbol 7-pin plug P T Symplified symbol P T P T plug plug X P T Y Detailed symbol 6 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
7 Spool data Spool symbols symmetric Spool code Spool symbol Flow rating For KHDG5V-5 valves: 2C7N45 2C 7 L/min (18.5 USgpm) port flow 45 L/min (11.9 USgpm) port flow 33C6N4 33C 6 L/min (17.2 USgpm) port flow 4 L/min (1.6 USgpm) port flow PQ87F PQ See flow chart (p. 11) For KHDG5V-7 valves: 2C15N85 2C 15 L/min (4 USgpm) port flow 85 L/min (22.4 USgpm) port flow 33C13N65 33C 13 L/min (33.3 USgpm) port flow 65 L/min (17.2 USgpm) port flow 5C2N115 5C 2 L/min (52.8 USgpm) port flow, 115 L/min (3.8 USgpm) port flow PQ19F PQ See flow chart (p. 11) For KHDG5V-8 valves: 2C375N25 2C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow 33C375N25 33C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow 12C375N25 12C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow 133C375N25 133C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow 72C375N25 72C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow 733C375N25 733C 375 L/min (99 USgpm) port flow 25 L/min (66 USgpm) port flow PQ375F PQ See flow chart (p. 12) For KHDG5V-1 valves: 2C7N42 2C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow 33C7N42 33C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow 12C7N42 12C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow 133C7N42 133C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow 72C7N42 72C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow 733C7N42 733C 7 L/min (185 USgpm) port flow 42 L/min (11 USgpm) port flow PQ68F PQ See flow chart (p. 13) vailable spools for KHDG5V P T Spool type 2C P T Spool type 5C (zero lapped) P T Spool type 133C P T Spool type 733C P T Spool type 33C P T Spool type 12C P T Spool type 72C P T Spool type PQ KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
8 Operating data Data is typical with fluid at 36 cst (168 SUS) and 5 C (122 F). Power supply 24V DC (18V to 36V including 1% peak-to-peak max. ripple) max current 3 Command signal Voltage mode to 1V DC, or to 1V DC, or 1V to + 1V DC Input impedance M1: 47 kω - M2: R Common mode voltage to pin D 18V (max) Current mode 4-2 m Max differential voltage to pin E to pin 1V Valve enable signal for model codes PH7 Enable >8.5V (36V max) Disable <6.5V Input impedance 1 kω 7-pin plug connector Pin Description G Power supply positive (+) F E C Power supply V C Not connected (PE7) C Valve enable (PH7) D Command signal (+V or current in) E Command signal (-V or current command return) D View of pins of fixed half. F Output monitor G Protective ground Electromagnetic compatibility (EMC) Conducted Emissions CISPR Ed 6./EN Class, 15kHz to 3MHz Radiated Emissions CISPR Ed 6. /EN Class, 3MHz 1GHz RF Continuous Conducted disturbances IEC 6-4-6, Class 15 KHz to 8 MHz DC Power Port : 1Vrms Signal/Control Port : 1Vrms RF Electromagnetic Field, 8 MHz to 27 MHz, 1V/m, Meets Criterion Surge: IEC DC Power Port : ±1kV Signal/Control Port : ±1kV Electrical Fast Transients IEC 6-4-4, Class DC Power Port : ±2kV Signal/Control Port : ±1kV Electrostatic discharges (ESD) IEC 6-4-2, Class ir ±8kV, Contact ±4kV Threshold command voltage (minimum voltage for minimum flow) V 5C Spools.25V 2C & 33C Spools Monitor signal (pin F) Voltage mode +/- 1V DC for full stroke Output impedance 1KOhm Current mode 4m to 2m Output impedance Upto 2 ohms Power stage PWM frequency 1 khz nominal Step input response, with flow through P T, p=5 bar Time to reach 9% of required step: (72 psi) per metering path, e.g. P, pilot pressure = 4 bar Required flow step: KHDG5V 5 KHDG5V 7 KHDG5V 8 KHDG5V 1 to % 24 ms 24 ms 33 ms 64 ms % to 23 ms 23 ms 33 ms 6 ms +9 to 9% 35 ms 36 ms 49 ms 84 ms Reproducibility, valve-to-valve (at factory settings): 5% Flow at % command signal Hysteresis with flow through --T <1% Øp=5 bar (72 psi) per metering path (P or T) Protection: Electrical Reverse polarity protected Environmental IEC 6529, Class IP65 & IP67 mbient air temperature range for full performance -4 C to +85 C (-4 F to 185 F) Oil temperature range for full performance C to 7 C (32 F to 158 F) 8 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
9 Pressure and minimum flow rates Minimum temperature at which valves will work at reduced performance -4 C (-4 F) Storage temperature range -4 C to +85 C (-4 F to 185 F) Relative duty factor Continuous rating (ED = %) Mass: kg (lb) approx. KHDG5V 5 KHDG5V 7 KHDG5V 8 KHDG5V 1 Valves with pressure reducer 1.15 (22.4) 11.4 (25.1) 17.5 (37.54) 44.3 (97.7) Valves without pressure reducer 8.85 (19.5) 1.1 (22.2) (34.84) 43.1 (95.1) Supporting products: uxiliary electronic modules (DIN -rail mounting): EH-CON-21-2* signal converter See catalog G 241 EHD-DSG-21--1* command signal generator See catalog G 247 EH-RMP-21--2* Ramp generator See catalog G 241 EH-PSU Power supply See catalog G 241 EH-PID PID controller See catalog G 2427 Maximum pressures, bar (psi) valves with pressure reducer Model Pilot pressure source Pilot drain connection P Port & Ports T Port X Port Y Port KHDG5V 5 External External 315 (45) 315 (45) 21 (3) 315 (45) 5 (7) Internal* 315 (45) 315 (45) 5 (7) 315 (45) 5 (7) Internal External 315 (45) 315 (45) 21 (3) 315 (45) 5 (7) Internal* 315 (45) 315 (45) 5 (7) 315 (45) 5 (7) KHDG5V 7/8/1 External External 35 (5) 35 (5) 35 (5) 35 (5) 5 (7) Internal* 35 (5) 35 (5) 5 (7) 35 (5) 5 (7) Internal External 35 (5) 35 (5) 35 (5) 35 (5) 5 (7) Internal* 35 (5) 35 (5) 5 (7) 35 (5) 5 (7) Minimum recommended pilot operating pressure = 5 bar (7 psi) * Internal drain is a non-preferred option For pilot pressures 21 bar (3 psi) a pilot pressure reducer is optional For pilot pressures > 21 bar (3 psi) a pilot pressure reducer must be used Unused pilot port: Maximum pressure as shown Maximum pressures, bar (psi) valves without pressure reducer Pilot pressure Pilot drain source Pilot drain connection P Port & Ports T Port X Port Y Port KHDG5V 5 External External 315 (45) 315 (45) 21 (3) 21 (3) 5 (7) Internal* 315 (45) 315 (45) 5 (7) 21 (3) 5 (7) Internal External 21 (3) 315 (45) 21 (3) 21 (3) 5 (7) Internal* 21 (3) 315 (45) 5 (7) 21 (3) 5 (7) KHDG5V 7/8/1 External External 35 (5) 35 (5) 35 (5) 21 (3) 5 (7) Internal* 35 (5) 35 (5) 5 (7) 21 (3) 5 (7) Internal External 21 (3) 35 (5) 35 (5) 21 (3) 5 (7) Minimum recommended pilot operating pressure = 5 bar (7 psi) * Internal drain is a non-preferred option For pilot pressures 21 bar (3 psi) a pilot pressure reducer is optional For pilot pressures > 21 bar (3 psi) a pilot pressure reducer must be used Unused pilot port: Maximum pressure as shown Internal* 21 (3) 35 (5) 5 (7) 21 (3) 5 (7) Minimum recommended flow rates Valve size/spool code Min. Flow rate L/min In 3 /min KHDG5V KHDG5V KHDG5V KHDG5V KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
10 Performance curves KHDG5V-5/7/8/1 Flow gain t p = 5 bar (72 psi) per metering path (e.g. ), with flow through --T or P---T. Percentage command signals applicable for positive and negative values of command signal. Valve Pressure drop bar US gpm KHDG5V 5 Power capacity envelope Flow through --T or P---T KHDG5V 7 KHDG5V Flow rate L/min KHDG5V psi t other p values, flow rates approximate to: px QX = QD pd where QD= Datum flow rate pd= Pressure drop at datum flow rate px= Required p Limited by valve power capacity. Refer to curves on page 11. "2C" Spools KHDG5V 1 2C7N KHDG5V 8 2C375N KHDG5V 7 2C2N KHDG5V 5 2CN between ports & or &, as % of port P pressure % % 2 Spool stroke 4 6 from null, % of max "5C" Spools KHDG5V 1 5C72N KHDG5V 8 5C375N KHDG5V 7 5C2N KHDG5V 5 5CN mplitude ratio (d) Frequency response, Typical For an amplitude of 5 ± 25% of rated flow (ISO 177-1) 2C spool measured at = 36 cst (168 SUS), t = 5 C (122 F) and pilot pressure = 4 bar (with-reducer model) mplitudes KHDG5V Phase lags Frequency (Hz) KHDG5V 8 KHDG5V 1 KHDG5V 5/7 KHDG5V 8 (middle) KHDG5V 5/7 Phase lag (degrees) "33C" Spools KHDG5V 1 33C7N KHDG5V 8 33C375N KHDG5V 7 33C16N KHDG5V 5 33C8N KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
11 Performance curves Flow gain KHDG5V-5 KHDG5V-7 8 2C7N C15N T P- -T T P- -T C6N C13N T P- -T T P- -T PQ87F T 6 -T 4 2 P PQ19F T -T 5 P KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
12 Performance curves Flow gain KHDG5V C375N25 & 33C375N T P T C375N25 & 733C375N T T P C375N25 & 133C375N T P PQ 375F T -T Flowrate US gpm 5 P Command signal (% of max ) 12 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
13 Performance curves Flow gain KHDG5V-1 2C7N42 & 33C7N P- 12 -T 3 -T C7N42 & 733C7N T P T C7N42 & 133C7N T P PQ T -T P KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
14 Installation dimensions KHDG5V-5/7 Dimensions shown in mm (in). KHDG5V-5 Valve without pressure reducer Valve with pressure reducer 1 13,95 ( 4. 49) i r leed Scr ew i r leed Scr ew 22,83 ( 7. 99) 242,86 ( 9. 56) Pressu re Redu cer 4. (1.58) 35, ( 1. 38) 7, (2. 76) 141,6 ( 5. 57) 264,6 ( 1. 42) Mounting surface, seals supplied. For mating surface dimensions, see page 16. For mounting subplate options and bolt options, see catalog G KHDG5V-7 Valve without pressure reducer Valve with pressure reducer 21,83 ( 8.3) 12,17 (4.73) i r leed Scr ew 25,69 (9.87) i r leed Screw Pressure Reducer 4. (1.58) 46, (1.81) 92, (3.62) 142,3 (5.6) 277,47 (1.92) Mounting surface, seals supplied. For mating surface dimensions, see page 16. For mounting subplate options and bolt options, see catalog G KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
15 Installation dimensions KHDG5V-8/1 Dimensions shown in mm (in). KHDG5V-8 Valve without pressure reducer Valve with pressure reducer (11.55) (5.263) ir leed Scr ew (12.635) ir leed Scr ew Pressure Reducer 4. (1.58) 98.4 (3.874) (7.748) (8.887) (19.969) Mounting surface, seals supplied. For mating surface dimensions, see page 17. For mounting subplate options and bolt options, see catalog G KHDG5V-1 Valve without pressure reducer Valve with pressure reducer (5.88) ir leed Screw (8.94) ir leed Screw 267,1 [1.5] Pressure Reducer 4. (1.58) 6. (2.36) (4.66) (6.34) (13.44) Mounting surface, seals supplied. For mating surface dimensions, see page 17. For mounting subplate options and bolt options, see catalog G KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
16 Mounting surfaces Dimensions shown in mm (in). General description When a subplate is not used, a machined pad must be provided for valve mounting. Pad must be flat within.127 mm (.5 inch) and smooth within 1.6 mm (63 microinch). Mounting bolts, when provided by customer, should be ISO 898 class 12.9 or better. olt Kits See page 18. Dimensional tolerances Dimensional tolerance on interface drawings is.2 mm (.8 ) except where otherwise stated. ISO 441 specifies inch conversion to.1 Conversion from metric ISO 441 gives dimensions in mm. Inch conversions are accurate to.1 unless otherwise stated. Mounting bolt tappings ISO 441 gives metric thread tappings. lternate UNC tappings are Eaton recommendations that allow these plates and associated valves to be used up to their maximum pressures, when using Eaton recommended bolt kits, or bolts of an equivalent strength. It is recommended that Customer s own manifold blocks for UNC bolts should be tapped to the minimum depths given in the footnotes. 6,3 (.25) 21,4 32,5 (.84) (1.28) 5,8 (2.) 27, (1.6) 16,7 (.66) 3,2 (.12) 5 ports Ø 11,2 (.44 dia) including optional tank port T P T 37,3 (1.47) 4 holes, M6-6H x 16 (.63) min. full thread depth 69, (2.72) min. 46,±,1 (1.81±.4) 11, (.433) 8, (.315) X T 62, (2.44) P T Y ISO standard size 5 with ports X and Y This interface conforms to ISO , NSI/ 93.7M (and NFP) size 5, CETOP R35H4 2-5, DIN 2434 Form 1. 1/4-2 UNC-2 optional. 54,±,1 (2.12±.4) 9, (3.54) min. Optional port (T) Hole Ø 6,3 (.25 dia) max. 1,6±,1 (.63±.4) 15,9 (.63) 18,3 (.72) 11,6±,1 (4. ±.4) 88,1 (3.47) 76,6 (3.16) 65,9 (2.59) 5, (1.97) 34,1 (1.34) 2 holes Ø 4, (.157 dia) x 8, (.31) min. depth 4 holes M1 x 17, (.67) min. full thread depth ISO standard size 7 interface This interface conforms to: ISO NSI/ 93.7M (and NFP) size 7 CETOP R35H4.3-7 DIN 2434 Form 16 3/8-16 UNC optional. 1/4-2 UNC optional. 69,9 ±,1 ( ,5 ±.4) ±,1 (2.815 ±.4) 57,2 (2.25) 55,6 (2.19) 34,9 (1.38) 14,3 (.56) L T P X Y 95, (3.74) min. 3 holes (ports L, X, Y) Ø 6,3 (.25 dia) max. 11, (.43) 13, (5.12) min. 4 holes (ports P, T,, ) Ø 17,5 (.69 dia) max. 2 holes M6-6H x 17, (.67) min. full thread depth 16 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
17 Mounting surfaces Dimensions shown in mm (in). 53,2 ±,1 (2.94 ±.4) 29,4 ±,1 (1.157 ±.4) 13,2 ±,1 (5.126 ±.4) 112,7 (4.437),8 (3.968) 94,5±,1 (3.72 ±.4) 77, (3.3) 2 holes Ø 7,5 (.295 dia) x 8, (.31) min. depth Ports X,Y: Ø 11,2 (.44 dia) max. ISO standard size 8 Interface This interface conforms to: ISO NSI/ 93.7M (and NFP) size 8 CETOP R35H4.3-8 DIN 2434 Form 25 1/2-13 UNC optional. 17,5 (.689) 19, (.748) 17,5 (.689) 5,6 (.22) 4,8 ±,1 (.189±.4) 92,1±,1 (3.626±.4) 74,6 (2.937) 73, (2.874) 46, (1.181) L X T P Y 118, (4.65) min. 153, (6.2) min. Port L: Ø 11,2 (.44 dia) max. 6 holes, M12-6H x 2, (.78) Ports P, T,, : min. full th read depth Ø 25. (.98 dia) max [4.5] 41.3 [1.62] 76.2 [3.] 23.1 [9.6] 19.5 [7.5] [6.62] [5.81] [5.46] 82.6 [3.25] 7.1 Dia [.28] Dia 3-Places ISO standard size 1 interface This interface conforms to: ISO NSI/ 93.7M (and NFP) size 1, CETOP 35H4.3-1, DIN 2434 Form [6.25] [1.75] [1.38] T P Y M2 Thread [Optional UNC Thread] Ports X, Y, L 11.2 Dia [.44] Dia 3-Places 13.2 [5.12] 79.4 [3.12] L [7.83] [4.88] X Ports P, T,, 32. Dia (Max) [1.26] Dia (Max) KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
18 Electrical information lock diagram Voltage input (M1) KHDG5V wiring Connections must be made via the 7-pin plug mounted on the amplifier. See page 18 of this leaflet and Eaton s Installation Wiring Practices for Eaton Electronic Products, leaflet Recommended cable sizes are: Power cables: For 24V supply.75 mm2 (18 WG) up to 2m (65 ft) 1. mm2 (16 WG) up to 4m (13 ft) Signal cables:.5 mm2 (2 WG) Screen (shield): See connection diagram on page 2. KHDG5V wiring Wiring details for these valves are contained in the appropriate Eurocard literature and the Installation Wiring Practices for Eaton Electronic Products leaflet Command signals and outputs, M1 7-pin plug Flow direction Pin D Pin E Positive OV OV Negative P to U d - U e = Positive Negative OV OV Positive P to U d - U e = Negative suitable cable would have 7 cores, a separate screen for the signal wires and an overall screen. Cable outside diameter mm ( inches) 7-pin plug connections +24V Power V Enable or C not connected +15V V 15V +24V LVDT Compensation network Monitor output F Modulator Command signal voltage, see table Non-inverting Inverting D E Gain Of fset Protective ground G Valve envelope +24V Solenoid drive Pin C is used for a valve enable signal with electrical connections PH7 WRNING ll power must be switched off before connecting or disconnecting any plugs. 18 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
19 Electrical information lock diagram Current input (M2) KHDG5V KHDG5V wiring Connections must be made via the 7-pin plug mounted on the amplifier. See page 19 of this leaflet and Eaton s Installation Wiring Practices for Eaton Electronic Products, leaflet Recommended cable sizes are: Power cables: For 24V supply.75 mm2 (18 WG) up to 2m (65 ft) 1. mm2 (16 WG) up to 4m (13 ft) Signal cables:.5 mm2 (2 WG) Screen (shield): suitable cable would have 7 cores, a separate screen for the signal wires and an overall screen. Cable outside diameter mm ( inches) See connection diagram on page 21. KHDG5V wiring Wiring details for these valves are contained in the appropriate Eurocard literature and Eaton s Installation Wiring Practices for Eaton Electronic Products leaflet Command signals and outputs, M2 7-pin plug Pin D Pin E Pin Flow direction More than 12 m Current return Power ground P to Less than 12 m Current return Power ground P to 7-pin plug connections LVDT Compensation network +24V Power V Enable or C not connected +15V V -15V +24V Monitor Output F Command +4 to 2 m D F1 R1 Modulator Return E F2 Gain Offset Protective ground G Valve envelope +24V Solenoid drive R1 F1, F2 Pin C is used for a valve enable signal with electrical connections PH7. Shunt resistor R Resettable fuse WRNING ll power must be switched off before connecting/ disconnecting any plugs. KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
20 Electrical information Wiring connections voltage input (M1) Spool position monitor voltage (pin F) will be referenced to the K valve local ground. Power Supply User Panel +24V V Outer Screen K..PE7 valve Demand Signal Spool Position Monitor V ±1V V Input Inner Screen Drain Wire C D or E E or D G F Valve must be connected to ground via subplate Enclosure V must be connected to ground Connector shell Wiring connections for M1 valves with enable feature N ote: In applications where the valve must conform to European RFI/EMC regulations, the outer screen (shield) must be connected to the outer shell of the 7 pin connector, and the valve body must be fastened to the earth ground. Proper earth grounding practices must be observed in this case, as any differences in command source and valve ground potentials will result in a screen (shield) ground loop. User Panel Outer Screen K.. PH7 valve Power Supply +24V V Enable Signal Demand Signal Spool Position Monitor V +8.5V to 36V V ±1V V Input Inner Screen Drain Wire C D or E E or D G F Valve must be connected to ground via subplate Enclosure V must be connected to ground Connector shell 2 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
21 Electrical information Wiring connections current input (M2) Spool position monitor voltage (pin F) will be referenced to the K valve local ground. Power Supply Demand Signal Spool Position Monitor Enclosure User Panel V must be connected to ground +24V V V 4-2 m V Input Outer Screen Inner Screen Drain Wire Wiring connections for M2 valves with enable feature K.. PE7 valve N ote: In applications where the valve must conform to European RFI/EMC regulations, the outer screen (shield) must be connected to the outer shell of the 7 pin connector, and the valve body must be fastened to the earth ground. Proper earth grounding practices must be observed in this case, as any differences in command source and valve ground potentials will result in a screen (shield) ground loop. C E D G F Valve must be connected to ground via subplate Connector shell WRNING Electromagnetic Compatibility (EMC) It is necessary to ensure that the valve is wired up as above. For effective protection the user electrical cabinet, the valve subplate or manifold and the cable screens should be connected to efficient ground points. The metal 7 pin connector part no should be used for the integral amplifier. In all cases both valve and cable should be kept as far away as possible from any sources of electromagnetic radiation such as cables carrying heavy current, relays and certain kinds of portable radio transmitters, etc. Difficult environments could mean that extra screening may be necessary to avoid the interference. It is important to connect the V lines as shown above. The multi-core cable should have at least two screens to separate the demand signal and monitor output from the power lines. The enable line to pin C should be outside the screen which contains the demand signal cables. User Panel Outer Screen K.. PH7 valve Power Supply +24V V Enable Signal Demand Signal Spool Position Monitor V +8.5V to 36V V 4-2 m V Input Inner Screen Drain Wire C E D G F Valve must be connected to ground via subplate Enclosure V must be connected to ground Connector shell KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September
22 pplication data Fluid cleanliness Proper fluid condition is essential for long and satisfactory life of hydraulic components and systems. Hydraulic fluid must have the correct balance of cleanliness, materials and additives for protection against wear of components, elevated viscosity and inclusion of air. Recommendations on contamination control methods and the selection of products to control fluid condition are included in Eaton publication 9132 or 561, Eaton Guide to Systemic Contamination Control. The book also includes information on the Eaton concept of Proctive Maintenance. The following recommendations are based on ISO cleanliness levels at 2 μm, 5 μm and 15 μm For products in this catalog the recommended levels are: to 7 bar ( psi) 18/16/ bar ( + psi) 17/15/12 Eaton products, as any components, will operate with apparent satisfaction in fluids with higher cleanliness codes than those described. Other manufacturers will often recommend levels above those specified. Experience has shown, however, that life of any hydraulic components is shortened in fluids with higher cleanliness codes than those listed above. These codes have been proven to provide a long trouble-free service life for the products shown, regardless of the manufacturer. Hydraulic fluids Materials and seals used in these valves are compatible with antiwear hydraulic oils, and non-alkyl-based phosphate esters. The extreme operating viscosity range is 5 to 13 cst (227 to 7 SUS) but the recommended running range is 54 to 13 cst (245 to 7 SUS). For further technical information about fluids see Technical Information leaflet -92 or I-286S. Installation The proportional valves in this catalog can be mounted in any attitude, but it may be necessary in certain demanding applications, to ensure that the solenoids are kept full of hydraulic fluid. Good installation practice dictates that the tank port and any drain port are piped so as to keep the valves full of fluid once the system start-up has been completed. Service information The products from this range are preset at the factory for optimum performance; disassembling critical items would destroy these settings. It is therefore recommended that should any mechanical or electronic repair be necessary they should be returned to the nearest Eaton repair center. The products will be refurbished as necessary and retested to specification before return. Field repair is restricted to the replacement of the seals. Note: The feedback/solenoid assembly installed in this valve should not be disassembled. 22 KHDG5V PROPORTIONL TWO-STGE DIRECTIONL VLVES V-VLDI-MC1-E3 September 217
23 Eaton Hydraulics Operations US Lone Oak Road Eden Prairie, MN US Tel: Fax: Eaton Hydraulics Operations Europe Route de la Longeraie Morges Switzerland Tel: +41 () Fax: +41 () Eaton Hydraulics Operations sia Pacific 11th Floor Hong Kong New World Tower 3 Huaihai Zhong Road Shanghai 221 China Tel: Fax: Eaton Eaton oulevard Cleveland, OH United States Eaton.com 217 Eaton ll Rights Reserved Printed in XXX Publication No. V-VLDI-MC1-E3 / 3826 September 217 Changes to the products, to the information contained in this document, and to prices are reserved; so are errors and omissions. Only order confirmations and technical documentation by Eaton is binding. Photos and pictures also do not warrant a specific layout or functionality. Their use in whatever form is subject to prior approval by Eaton. The same applies to Trademarks (especially Eaton, Moeller, and Cutler-Hammer). The Terms and Conditions of Eaton apply, as referenced on Eaton Internet pages and Eaton order confirmations. Eaton is a registered trademark. ll trademarks are property of their respective owners.
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