4/3-way fast response valve Type 4WRGE
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1 RE 9 7/.3 Replaces:.98 4/3-way fast response valve ype 4WRGE Nom. size max. operating pressure 35 ar Nom. sizes 6, 5 max. operating pressure 35 ar Series X Maximum flow 87 L/min H/ 568/95 ype 4WRGE L-X/35G4..K3... Overview of contents Contents age Features Ordering details referred types 3 Symols 3 Function, section 4 echnical data 5 Electrical connections 6 Integrated control electronics 7 Characteristic curves 8 to Unit dimensions 3 to 5 ilot oil supply 6 Features ilot operated -stage fast response valve with electrical closed loop position control of main spool and integrated open and closed loop control electronics Suitale for closed loop position, speed, pressure and force closed loop control, with simultaneous high demands on the dynamics in the small signal range and on the response sensitivity ilot control valve: Single-stage servo valve to the orifice/flapper principle osition acquisition of main spool via an inductive position transducer High response sensitivity and low hysteresis Easily exchangeale filter element Integrated control electronics using SMD technology, output stage in thick layer hyrid technology, external zero point correction possile For suplate mounting: orting pattern to DIN 4 34 form Suplates to catalogue sheets RE to (separate order), see pages 3 to 5 3 y osch Rexroth G, Industrial Hydraulics, D-9783 Lohr am Main ll rights reserved. No part of this document may e reproduced or stored, processed, duplicated or circulated using electronic systems, in any form or y means, without the prior written authorisation of osch Rexroth G. In the event of contravention of the aove provisions, the contravening party is oliged to pay compensation. 4WRGE /6 RE 9 7/.3
2 Ordering details 4WRGE L X /35 G4 K3/ * Electrically operated -stage fast response directional control valve of 4-way design with servo valve pilot control and integrated control electronics Nominal size = Nominal size 6 = 6 Nominal size 5 = 5 Symols a a With symol E-, V-: : q V : q V / : q V / : q V = E = E- = V = V- = Q- Note: With the spools E and E there is an overlap of 5 % in the zero position, with the spools V and V an overlap from to.5 %. ) Suitale for mineral oil to DIN 5 54 Further details in clear text M = ) NR seals V = FKM seals No code = Without sandwich plate directional valve WG5 = With sandwich plate directional valve 4 V with component plug DIN M, Without plug-in connector lug-in connector separate order, see page 6 = Command value input ± VDC C = Command value input ± m Electrical connections K3 = With component plug to E DIN M6-3, Without plug-in connector, lug-in connector separate order, see page 6 ilot oil supply and drain No code = ilot oil supply, external, ilot oil drain, external E= ilot oil supply, internal, ilot oil drain, external E = ilot oil supply, internal, ilot oil drain, internal = ilot oil supply, external, ilot oil drain, internal G4 = Supply voltage 4VDC ilot pressure 35 = to 35 ar X = Series to 9 ( to 9: unchanged installation and connection dimensions) Characteristic curve form L = Linear Nominal flow in L/min at ar valve pressure differential 5 = or = with nominal size 5 = or = with nominal size 6 5 = or 35 = with nominal size 5 RE 9 7/.3 /6 4WRGE
3 referred types NS Material no. ype 954 4WRGE V5L-X/35G4EK3/M WRGE V5L-X/35G4K3/M WRGE V-5L-X/35G4K3/M WRGE V-5L-X/35G4EK3/M WRGE V-L-X/35G4K3/M NS 6 Material no. ype WRGE 6 V5L-X/35G4EK3/M WRGE 6 VL-X/35G4EK3/M WRGE 6 VL-X/35G4K3/M WRGE 6 V-L-X/35G4EK3/M WRGE 6 V-L-X/35G4K3/M NS 5 Material no. ype WRGE 5 V5L-X/35G4EK3/M WRGE 5 V35L-X/35G4EK3/M WRGE 5 V35L-X/35G4K3/M WRGE 5 V-35L-X/35G4EK3/M WRGE 5 V-35L-X/35G4K3/M Symols General ype 4WRGE -X/ a, a, X Y a G ype 4WRGE -X/ E a, Y a G ype 4WRGE -X/ E a, a G ype 4WRGE -X/ a, X a G 4WRGE 3/6 RE 9 7/.3
4 Function, section he 4/3-way fast response valve is designed for suplate mounting with closed loop position control and integrated control electronics. It infinitely controls the flow proportional to the input signal from to and to or from to and to. Design: he valve consists of 4 main component groups: Low-friction pilot control valve () with a -gap torque motor; valve housing () with orifices (3) and filter (4) Housing of main stage (5) with spring centered spool (6) Control electronics (7) with amplifier for the control of the pilot control valve () and for closed loop position control of the main spool (6) Inductive position transducer (8) for position acquisition of the main spool X Y ype 4WRGE -X/ K3 R36 osition transducer zero point Functional description: ctuation of pilot control valve via a command value of to ± V or from to ± m Comparison of the command/actual value in the control electronics with control deviation the torque motor is operated and the flapper plate is deflected according to the control amplitude. Unalancing of the pilot pressures via the variale and fixed orifices movement of main spool (6) Reaching the position of the main spool according to the command value signal control deviation is reduced to virtually V control process is completed ilot oil supply to pilot control valve internally via port or externally via port X. ilot oil drain internally via port or externally via Y to tank! ttention! When the supply voltage fails ut operating pressure remains availale, the main spool (6) moves into an undefined position. he occuring accelerations may cause damage to the machinery. y using a sandwich plate directional valve (see pages to 4) oth pilot lines in the main stage are short circuited when a power failure occurs. With spool types E, E and Q the centering springs (9, ) centre the main spool (6), V and V spools are moved into the preferred direction of to and to within a tolerance range of % to % of the spool stroke. When the operating pressure fails and sandwich plate directional valves are not used the same characteristics apply. RE 9 7/.3 4/6 4WRGE
5 echnical data (for applications outside these parameters, please consult us!) General NS NS 6 NS 5 Installation optional, preferraly horizontal (commissioning guidelines see RE 7 7) mient temperature range C to + 5 Storage temperature range C to + 8 Weight kg Hydraulic (measured at p = ar, ν = 3 mm /s, ϑ = 4 C) Oper. pressure: ilot control valve, pilot oil supply ar to 35 Main valve, ports,, ar up to 35 up to 35 up to 35 Return pressure: ort ilot oil drain, internal ar pressure peaks < permissile ilot oil drain, external ar up to 35 up to 5 up to 5 ort Y ar pressure peaks < permissile Nominal flow q V nom ± % at p = ar ) L/min ) p = valve pressure differential 35 Flow of main spool (max. permissile) L/min Stroke of main spool (-stage) mm ± 3.5 ± 3.5 ± 3.5 ilot flow at ports X or Y with a jump form of input signal from to % L/min... ressure fluid mineral oil (HL, HL) to DIN 5 54 further pressure fluids on request! Filter rating of the pilot control valve µm asolute Degree of contamination max. permissile degree of filter with a minimum contamination of the pressure retention rate of fluid is to NS 638 β X = 75 is recommended ilot control valve class 7 x = 5 Main valve class 9 x = 5 ressure fluid temperature range C to 8; preferraly 4 to 5 Viscosity range mm /s to 38; preferraly 3 to 45 Hysteresis %.5 Response sensitivity %. Reversal span %.4 Electrical Voltage type Signal type DC analogue Zero alance % Zero deflection with alteration of: ressure fluid temperature %/ K <. <. <.3 Operating pressure %/ ar <. <.4 <.4 Return pressure to % from p % <. <. <. Valve protection to DIN 4 5 I 65 Control electronics V 337 (integrated in valve, see page 7) Note: For details regarding the environmental simualtion test covering EMC (electro-magnetic compatiility), climate and mechanical loading see RE 9 7-U (declaration regarding environmental compatiility). 4WRGE 5/6 RE 9 7/.3
6 Electrical connections Sandwich plate directional valve WG 5 lug-in connector to DIN F/g Separate order under material no (plastic version) 7,5 7, Ø,5 3 3 lug-in connector to E DIN F6-3/g Separate order under material no. 67 (plastic version) For pin allocation see lock circuit diagram on page 7,5 (seal) 9 F Ø6,5 E D C RE 9 7/.3 6/6 4WRGE
7 Integrated control electronics in allocation, component plug Integrated control electronics (see elow) C D E F E in Signal ) Supply 4 VDC (9 to 35 VDC) voltage GND C n.c. Differential D com. value (± V or ± m) amplifier input E ref. potential ) Measurement F act. value (± V or ± m) output against V 3) Earth E connected to valve housing ) Supply voltage + 4 VDC ± 5 %; full ridge rectification with smoothing capacitor µf; I max = 3 m ) Current input ± m input resistance Ω 3) ± m max. load resistance kω Command value: Reference potential at E and positive command value at D causes flow from to and to. Reference potential at E and negative command value at D causes flow from to and to. Connection cale: Recommeded: up to 5 m cale length type LiYCY 5 x.75 mm up to 5 m cale length type LiYCY 5 x. mm External diameter 6.5 to mm Connect screen to E on supply side only. Note: Electrical signals (e.g. actual value) which are transmitted y the valve electronics must not e used to switch off safety related machinery functions! (lease note the Safety requirements for fluid power operated machinery and parts hydraulics according to European standard EN 98!) lock circuit diagram / erminal allocation of the integrated control electronics type V337 Interface Integrated control electronics Valve Com. value ± V or ± m D E U(I) U Dither generator Controller = ~ Zero point mplitude Current controller Output stage U I Servo valve Coil Coil ct. value ± V/ ± m (measurement output F has positive potential against with flow ) Supply voltage 5 V 4 V ±5 V 8 to 3 V 5V V M free F C E U(I) U Zero point Oscillator ~ = Demodulator = ~ Sensitivity 4 3 Red lue rown lack osition transducer Flow direction: ositive signal at in D and ref. potential at in E causes flow from. 4WRGE 7/6 RE 9 7/.3
8 Characteristic curves (measured at ν = 3 mm /s and ϑ = 4 C) ll nominal sizes ressure-signal-characteristic curve (V spool) 8 Characteristic curve measured with a pilot control pressure p s = ar 6 4 p L in % p S U E U EN in % Leakage flow 4WRGE V with pilot control valve in centre position of main spool Leakage flow in L/min Operating pressure in ar = Nominal size ( L/min) = Nominal size 6 ( L/min) 3 = Nominal size 5 (35 L/min) RE 9 7/.3 8/6 4WRGE
9 Characteristic curves (measured at p =ar or 5 ar per control land) Spool symols E. and V. Spool with characteristic curve L Spool with characteristic curve 8 8 Flow in % 6 4 Flow in % 6 4 Spool V. Spool E , , ,5 Command value in % Spool V. Spool E , , ,5 Command value in % = Larger nominal flow = Smaller nominal flow Spool symol Q- 8 Flow in % Command value in % 4WRGE 9/6 RE 9 7/.3
10 Characteristic curves (measured at ν = 3 mm /s and ϑ = 4 C) NS ransient function with a jump form of electrical input signal mplitude relationship in d Stroke in % Signal change in % ime in ms Frequency response characteristic curves 3, Frequency in Hz hase angle in Characteristic curve measured with a pilot control pressure p s = ar Characteristic curve measured with a pilot control pressure p s = ar Signal ± % Signal ± 5 % Signal ± % Flow/load function at max. valve opening (tolerance ± %) 7 Flow in L/min = Recommended flow limitation 5 Valve pressure differential in ar 3 RE 9 7/.3 /6 4WRGE
11 Characteristic curves (measured at ν = 3 mm /s and ϑ = 4 C) NS 6 ransient function with a jump form of input signal Signal change in % Characteristic curve measured with a pilot control pressure p s = ar mplitude relationship in d Stroke in % ime in ms Frequency response characteristic curves 3, Frequency in Hz hase angle in Characteristic curve measured with a pilot control pressure p s = ar Signal ± % Signal ± 5 % Signal ± % Flow/load function at max. valve opening (tolerance ± %) 46 Flow in L/min 3 5 = Recommended flow limitation 5 Valve pressure differential in ar 3 4WRGE /6 RE 9 7/.3
12 Characteristic curves (measured at ν = 3 mm /s and ϑ = 4 C) NG 5 ransient function with a jump form of electrical input signal Signal change in % Characteristic curve measured with a pilot control pressure p s = ar mplitude relationship in d Stroke in % ime in ms Frequency response characteristic curves 3, Frequency in Hz hase angle in Characteristic curve measured with a pilot control pressure p s = ar Signal ± % Signal ± 5 % Signal ± % Flow/load function at max. valve opening (tolerance ± %) 87 Flow in L/min Valve pressure differential in ar = Recommended flow limitation RE 9 7/.3 /6 4WRGE
13 Unit dimensions: NS (Dimensions in mm) 4 5 6,5 7 a 7 5 (4) 79 (9) a ,5 5,5 (6,5) 5 334, ,5 46, 7,9 6,9 X Y,/mm 73 R 4 max Required surface finish of mating piece ilot control valve Sandwich plate directional control valve (only included with ordering detail " WG5") 3 lug-in connector to DIN F/g (separate order, see page 6) 4 lug-in connector to E DIN F6-3/g (separate order, see page 6) 5 Main valve 6 Control electronics and inductive position transducer 7 Name plate 8 R-ring 3 x.6 x (ports,,, ) 9 R-ring.8 x.6 x.78 (ports X, Y) Connection cale Space required for connection cale and removal of plug-in connector Space required to remove plug-in connector 3 Valve mounting surface, porting pattern to DIN 4 34 form (ports X, Y on request) Suplates to catalogue sheet RE and valve fixing screws must e ordered separately. Suplates: G 534/ (G 3/4) G 535/ (G 3/4) with ports X and Y G 536/ (G ) with ports X and Y Valve fixing screws: 4 off M6 x 45 DIN 9-.9; M = 5.5 Nm For section details see page 6. 4WRGE 3/6 RE 9 7/.3
14 Unit dimensions: NS 6 (Dimensions in mm) 4 5 6, (4) 88,5 (8,5) a a ,5 7 (6,5) Ø 3 9, , ,9 X Y 94,/mm R 4 max 58 Required surface finish of mating piece ilot control valve Sandwich plate directional control valve (only included with ordering detail " WG5") 3 lug-in connector to DIN F/g (separate order, see page 6) 4 lug-in connector to E DIN F6-3/g (separate order, see page 6) 5 Main valve 6 Control electronics and inductive position transducer 7 Name plate 8 R-ring.53 x.3 x.6 (ports,,, ) 9 R-ring x x (ports X, Y) Connection cale Space required for connection cale and removal of plug-in connector Space required to remove plug-in connector 3 Valve mounting surface, porting pattern to DIN 4 34 form (ports X, Y on request) 4 Locating pin ( off) Suplates to catalogue sheet RE and valve fixing screws must e ordered separately. Suplates: G 7/ (G 3/4) G 7/ (M7 x ) G 74/ (G ) G 74/ (M33 x ) Valve fixing screws: off M6 x 6 DIN 9-.9; M = 5.5 Nm 4 off M x 6 DIN 9-.9; M = 75 Nm For section details see page 6. RE 9 7/.3 4/6 4WRGE
15 Unit dimensions: NS 5 (Dimensions in mm) 4 5 6, , a a 4 Ø Y 9 X,/mm R 4 max 95 Required surface finish of mating peice ilot control valve Sandwich plate directional control valve (only included with ordering detail " WG5") 3 lug-in connector DIN F/g (separate order, see page 6) 4 lug-in connector to E DIN F6-3/g (separate order, see page 6) 5 Main valve 6 Control electronics and inductive position transducer 7 Name plate 8 R-ring 7.8 x.6 x 3 (ports,,, ) 9 R-ring 9 x 3 x 3 (ports X, Y) Connection cale Space required for connection cale and removal of plug-in connector Space required to remove plug-in connector 3 Valve mounting surface, porting pattern to DIN 4 34 form (ports X, Y on request) 4 Locating pin ( off) Suplates to catalogue sheet RE and valve fixing screws must e ordered separately. Suplates: G 5/ (G ) G 54/ (G /4) G 56/ (G /) Valve fixing screws: 6 off M x 6 DIN 9-.9; M = 3 Nm For section details see page 6. 4WRGE 5/6 RE 9 7/.3
16 ilot oil supply ype 4WRGE -X/ ilot oil supply, external ilot oil drain, external With this version the pilot oil supply is from a separate pilot pressure circuit (external). he pilot oil drain is not into the port of the main valve ut separately into the tank via port Y (external). ype 4WRGE -X/ E ilot oil supply, internal ilot oil drain, external With this version the pilot oil supply is from the port of the main valve (internal). he pilot oil drain is not into the port of the main valve ut separately into the tank via port Y (external). ort X must e plugged in the suplate. ype 4WRGE -X/ E ilot oil supply, internal ilot oil drain, internal With this version the pilot oil supply is from the port of the main valve (internal). he pilot oil drain is directly into the port of the main valve (internal). orts X and Y must e plugged in the suplate. ype 4WRGE -X/ ilot oil supply, external ilot oil drain, internal With this version the pilot oil supply is from a separate pilot pressure circuit (external). he pilot oil drain is directly into the port of the main valve (internal). ort Y must e plugged in the suplate. ositions and : lug M6 DIN /F 3 NS For section diagram see page NS 6 For section diagram see page 3 Section a a ilot control valve X Y Main valve Y Section Section a a Main valve Y X Section X Cover ilot oil supply external: closed (section a a) internal: open ilot oil drain external: closed (section ) internal: open ilot oil supply external: closed (section a a) internal: open ilot oil drain external: closed (section ) internal: open NS 5 For section diagram see page 4 Section a a Section Cover X Main valve ilot control valve X Y ilot oil supply external: closed (section a a) internal: open pilot oil drain external: closed (section ) internal: open osch Rexroth G Industrial Hydraulics D-9783 Lohr am Main Zum Eisengießer D-9786 Lohr am Main elefon 93 5 / 8- elefax 93 5 / elex documentation@oschrexroth.de Internet osch Rexroth Limited Cromwell Road, St Neots, Cams, E9 ES el: 4 8/ 3 56 Fax: 4 8/ info@oschrexroth.co.uk he data specified aove only serves to descrie the product. No statements concerning a certain condition or suitaility for a certain application can e derived from our information. he details stated do not release you from the responsiility for carrying out your own assessment and verification. It must e rememered that our products are suject to a natural process of wear and ageing. RE 9 64/.3 6/6 4WREEM
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