PROPORTIONAL ELECTRO-HYDRAULIC CONTOROLS

Transcription

1 H RRINL ELECR-HDRULIC CNRLS -Hyrid Components...ge 656 roportionl Electro-Hydrulic Control s...ge 667 roportionl Electro-Hydrulic Controls 655

2 High-ccurcy, simple, convenient relizes your drems. Why simple? Highly ccurte hydrulic control cn e otined only y supplying 24 DC power 3 nd inputting commnd signl voltge of 0 to DC power supply ower mplifier 4 Commnd signl voltge input 2 ressure sensor incorported 5 oltge output for pressure monitor 6 lrm signl output Detils of roportionl Electro-hydrulic Relief Why high-ccurcy? he power mplifier nd pressure sensor 2 re integrted in the control vlve. Furthermore, the closed-loop control 2 design gretly improves the linerity, hysteresis nd stility in control pressure. Why convenient?. he sensor in directionl control vlves is to monitor the spool position. s without sensor re lso ville in oth pressure control vlves nd directionl control vlves. 2. pen-loop types re lso ville. 3. EHD04 nd 06: 24 DC power supply is needed. 4. EHD0, 03, 04 nd 06: 0 to 5 DC commnd signl is needed. 5. EHD04 nd 06: he spool displcement is shown s percentge. 656 nlog voltges cn e output y using the incorported sensor for monitoring pressure, etc ressure cn e displyed remotely with the indictors otinle in the mrket nd lso cn e trnsmitted into computer. If ny troule rises in the system nd the commnd signl does not mtch to the output, the lrm signl 6 is disptched. he troule, if rises, cn e esily detected y monitoring the disptch of the lrm signl with sequence controller or computer. -Hyrid Components roportionl Electro-Hydrulic Controls 3

3 -Hyrid Components roportionl Electro-Hydrulic Controls ypes rphic Symols x. perting ressure (SI) ximum Flow U.S L/min ge ilot Relief s (35) EHD ressure Control s SB0: SB90: SB0 SB Relief s (35) EHB Relieving nd Reducing s (35) EHRB Flow Control (nd Check) s 03: 20.6 (2990) 06: (35) EHF EHFC Flow Control nd Relief s (35) EHFB High Flow Flow Control nd Relief s (35) EHFB Directionl nd Flow Control s B (35) EHDF High Respones ype Directionl nd Flow Control s B W X 5.7 (2280) EHDF Consult uken when detiled mteril such s dimensions figures is required. -Hyrid Components roportionl Electro-Hydrulic Controls 657

4 roportionl Electro-Hydrulic ilot Relief s he vlve cn e used s pilot vlve of the roportionl Electro- Hydrulic Control s. he vlve cn lso e used s relief vlve for the hydrulic system where smll flow rte nd continuous pressure control re required. odel s x. perting res. x. Flow in. Flow ressure djustment Rnge Frequency Response Supply Electric ower ower Input (x.) lrm Signl utput (pen Collector) ressure Signl utput mient emperture EHD-0 (35 SI) 2 L/min (.53 U.S.) 0.3 L/min (.08 U.S.) Refer to odel tion. he vlue in ( ) is for the closed-loop type. 2. he repetility of the vlve is otined y hving it tested independently on the conditions similr to its originl testing. 0 3% (%) or less 2 % or less B: 0 (27) Hz C: 0 (27) Hz H: 2 (27) Hz (-90 degree) 24 DC (2 to 28 DC Included Ripple) B: 6.9 (000 SI) / 5 DC C: 5.7 (2275 SI) / 5 DC H: (35 SI) / 5 DC 0 k oltge: x. 30 DC Current: x. 40 m B: 5 DC / 6.9 (000 SI) C: 5 DC / 5.7 (2275 SI) H: 5 DC / (35 SI) 0 - C (32-22 F) (With Circulted ir) pen-loop ype pen-loop ype with Sensor Closed-Loop ype pen-loop ype with Sfety pen-loop ype with Sfety & Sensor Closed-Loop ype with Sfety odel tion F: for hosphte Ester ype (mit if not EHD EHD : roportionl Electro- Hydrulic ilot Relief ype of -0 -B -S - -N Size 0 pplicle Control For generl use : ent Control of Relief (mit if not res. dj. Rnge (SI) B: (70-000) C: ( ) H:.2 - (75-35) Control ype pen- Loop S: pen- Loop with Sensor L : Closed- Loop Sfety Without Sfety : With Sfety -Line rifice N : Without rifice (Stndrd) -Line rifice 5 3. For closed-loop models, specify pplicle control code "" even 2. Stndrd of -line rifice. though the vlve my not e used s vent control of relief vlve. res. dj. Rnge B:5, C:3, H:. 2 -B Line rifice 0: Stndrd rifice 658 ilot Relif vlves

5 roportionl Electro-Hydrulic ressure Control s SERIES hese re closed-loop type pressure control vlves controlling the system pressure from low to high in proportion to the input voltge. he stle pressure control is possile even in smll flow rte. odel s x. perting res. x. Flow in. Flow ressure djustment Rnge Supply Electric ower ower Input (x.) lrm Signl utput (pen Collector) ressure Signl utput mient emperture SB0 B: 6.9 (000 SI) H: (35 SI) 0 k oltge: x. 30 DC Current: x. 40 m. he repetilit y of the vlve is otined y hving it tested independentl y on the conditions similr to its originl testing. odel tion SB90 30 L /min (7.93 U.S.) 70 L /min (8.49 U.S.) B: 0.5 L/min (.3 U.S.) H: 0.5 L/min (.3 U.S.) t ( SI).5 L/min (.40 U.S.) t ( SI) 3.0 L/min (.79 U.S.) t ( SI) % or less 7.0 (020 SI) L /min (.26 U.S.) Refer to odel tion 0 % or less 24 DC (2 to 28 DC Included Ripple) B: 6.9 (000 SI) / 5 DC H: (35 SI) / 5 DC B: 5 DC / 6.9 (000 SI) H: 5 DC / (35 SI).5 % or less 7.0 (020 SI) / 5 DC 5 DC / 7.0 (020 SI) 0 - C (32-22 F) (With Circulted ir) rphic Symol SB0 -B -20 res. dj. Rnge (SI) H EH -Hyrid Components F: for hosphte Ester ype (mit if not SB0: roportionl Electro-Hydrulic ressure Control (3/8, mounting) SB90: roportionl Electro-Hydrulic ressure Control (3/4, mounting) B: (29-000) H: (29-35) B: (29-020) 20 0 he minimum djustle pressure is the vlue otined t mximum flow rte. ressure Control vlves 659

6 roportionl Electro-Hydrulic Relief s hese vlves, consist of smll size ut high performnce EH series electrohydrulic proportionl pilot relief vlve nd low noise type relief vlve. he vlves control the system pressure proportionlly through controlled input voltge. odel s EHB-03 x. perting res. x. Flow 00 L/min (26.4 U.S.) in. Flow 3 L/min (.79 U.S.) ressure djustment Rnge Frequency Response Supply Electric ower ower Input (x.) lrm Signl utput (pen Collector) C: 0 (22) Hz H : 0 (25) Hz (-90 degree) C: 5 DC / 5.7 (2275 SI) ressure Signl utput H:5 DC / (35 SI) 0 - C (32-22 F) mient emperture (With Circulted ir). he vlue in ( ) is for the closed-loop type. 2. he repetility of the vlve is otined y hving it tested independently on the conditions similr to its originl testing. EHB-06 (35 SI) 200 L/min (52.8 U.S.) 3 L/min (.79 U.S.) Refer to odel tion 0 2% (%) 2 % C: (22) Hz H : 3 () Hz (-90 degree) or less or less EHB L/min (06 U.S.) 3 L/min (.79 U.S.) C: 7 (0.5) Hz H : 6 (4) Hz (-90 degree) 24 DC (2 to 28 DC Included Ripple) C: 5.7 (2275 SI) / 5 DC (t x. Flow) H: (35 SI) / 5 DC 0 k oltge: x. 30 DC Current: x. 40 m pen-loop ype pen-loop ype with Sensor Closed-Loop ype odel tion EHB -03 -C -S - ype of Size F : 03 for hosphte EHB : roportionl Electro- Ester ype 06 Hydrulic Relief (mit if not 0 res. dj. Rnge (SI) C: 0.6 [0.8] (85 [5] ) H: 0.6 [0.8] - (85 [5] - 35) C: 0.9 [.0] (30 [45] ) H: 0.9 [.0] - (30 [45] - 35) C:. [.4] (60 [205] ) H:. [.4] - (60 [205] - 35) Ech vlue of minimum djustment pressure is of t % flow rte of the x. Flow shown on the. he vlue in [ ] is for the closed-loop type. Control ype pen-loop S: pen-loop with Sensor L : Closed-Loop 660 Relif vlves

7 SERIES roportionl Electro-Hydrulic Relieving nd Reducing s hese vlves consist of smll size ut high performnce electro-hydrulic proportionl pilot relief vlve nd reducing vlve with relief function. he vlves control the system pressure proportionlly through controlled input voltge. oreover, good response speed in reducing the pressure even t lrge lod cpcity cn e otined with the relief function of the vlves. odel s x. perting res. x. Flow x. Relieving Flow ressure djustment Rnge Frequency Response Supply Electric ower ower Input (x.) ressure Signl utput mient emperture EHRB L/min (26.4 U.S.) 35 L/min (9.24 U.S.) (35 SI) 2 % or less EHRB-0 2 L/min (66 U.S.) 5 L/min (3.96 U.S.) Refer to odel tion 0 3% or less B: 4 Hz C: 3 Hz (-90 degree) H: 3 Hz 24 DC (2 to 28 DC Included Ripple) B: 6.9 (000 SI) / 5 DC C: 3.7 (2000 SI) / 5 DC H: 20.6 (3000 SI) / 5 DC (t Flow Rte Zero) 0 k B: 5 DC / 6.9 (000 SI) C: 5 DC / 3.7 (2000 SI) H:5 DC / 20.6 (3000 SI) 0 - C (32-22 F) (With Circulted ir). he figures shown re those otined where the differentil pressure etween the secondry pressure port nd tnk port is 4 (2030 SI). 2. he repetility of the vlve is otined y hving it tested independently on the conditions similr to its originl testing. pen-loop ype pen-loop ype with Sensor H EH -Hyrid Components odel tion EHRB -06 -C -S - ype of Size res. dj. Rnge (SI) Control ype F : for hosphte Ester ype (mit if not EHRB: roportionl Electro-Hydrulic Relieving & Reducing 06 0 B: (5-000) C: ( ) H: ( ) B: (30-000) C: ( ) H: ( ) pen-loop S: pen-loop with Sensor Relieving nd Reducing vlves 66

8 roportionl Electro-Hydrulic Flow Control (nd Check) s he system flow rte cn e controlled remotely s desired y regulting input voltge. Further, since pressure nd temperture compenstion functions re provided, the preselected flow rte is not ffected y pressure (lod) or temperture (fluid viscosity). odel s x. perting res. (SI) x. etred Flow L/min (U.S.) in. etred Flow L/min (U.S.) in. Differentil ressure (SI) Free Flow L/min (U.S.) (nly with Check ) ilot Flow t Norml L/min (U.S.) t rnsition in. ilot ressure (SI) Frequency Response Supply Electric ower ower Input (x.) Input signl mient emperture EHF (3000) 60 : 60 ( 5.8) 25 : 25 ( 33) (.26).0 (45) 30 (34.3) 0.5 (.3) 2.6 (.69).0 (45) 2 Hz (-90 degree) 3% or less % 2 or less EHF (35) 2 (66) 2.5 (.66).0 (45) 280 (73.9) (.26) 4 (.06).5 (25) 0 24 DC (2 to 28 DC Included Ripple) x. etred Flow / 5 DC 0 k 0 - C (32-22 F) (With Circulted ir). inimum differentil pressure mens fine pressure compenstion t inlet nd outlet port. 2. he repetility of the vlve is otined y hving it tested independently on the conditions similr to its originl testing. EHF Internl ilot Externl ilot EHFC Internl ilot Externl ilot odel tion EHF E - ype of Size x. etred Flow L/min (U.S.) ilot Connection F : for hosphte Ester ype (mit if not EHF: roportionl Electro-Hydrulic Flow Control EHFC: roportionl Electro-Hydrulic Flow Control nd Check : 60 ( 5.8) 25 : 25 ( 33) 2: 2 ( 66) Internl ilot E: Externl ilot 662 Flow Control (nd Check) vlves

9 SERIES roportionl Electro-Hydrulic Flow Control nd Relief s hese re proportionl electro-hydrulic flow control vlves hving functions for controlling the direct electric current of metre-in type nd for pressure control. hey re energy-sving vlves for supplying the minimum pressure nd flow required to operte ctutors. odel s 60 EHFB EHFB-06-2 EHFB-0-0 x. perting ressure (SI) (35) x. Flow 60 : 60 ( 5.8) L/min (U.S.) 25 : 25 ( 33) etred Flow Cpcity 60 : -60( ) L/min (U.S.) 25: -25(.26-33) in. ilot ressure (SI).5 (25) ilot Flow t Norml (.26) L/min (U.S.) t rnsition 3 (.79) Differentil ressure (SI) 0.6 (85) Flow Controls ressure Controls Supply Electric ower ower Input (x.) res. dj. Rnge dj. Rnge: C (SI) dj. Rnge: H Supply Electric ower ower Input (x.) utput Signl mient emperture (35) (35) 2 (66) 0 (32) (.66-66) 5-0 (.32-32).5 (25) (.26) 4 (.06) 0.7 (00).5 (25) (.26) 6 (.59) 0.9 (30) 3% or less % or less x. Flow / 5 DC 0 24 DC (2 to 28 DC Included Ripple) 0 k ( ) ( ) ( ).4- (200-35).4- (200-35).5- (25-35) 2% or less % or less 0 x. perting res. / 5 DC 24 DC (2 to 28 DC Included Ripple) 0 k C:5 DC / 5.7 (2275 SI) H:5 DC / (35 SI) 0 - C (32-22 F) (With Circulted ir) he repetility of the vlves is otined y hving it tested independently on the conditions similr to its originl testing. odels with roportionl ilot Relief odels with roportionl ilot Relief nd Sensor X H EH -Hyrid Components odel tion F: for hosphte Ester ype (mit if not EHFB EHFB : roportionl Electro- Hydrulic Flow Control nd Relief ype of -03 Size x. etred Flow L/min (U.S.) 60 : 60 ( 5.8) 25 : 25 ( 33) 2: 2 ( 66) 0 0: 0 ( 32) -C ilot Relief res. dj. Rnge Without roportionl ilot Relief C, H : See odels without roportionl ilot Relief -E ilot Connection of Flow Control Internl ilot E: Externl ilot -S ressure Controls pen-loop S: pen-loop with Sensor Externl ilot res. Connection - Flow Control nd Relief s 663

10 High Flow roportionl Electro-Hydrulic Flow Control nd Relief s his flow control nd relief vlve is energy-sving vlve tht supplies the minimum pressure nd flow necessry for ctutor drive. For the High Flow, doule mximum flow rte [03 size: 25 2 L/min (33 66 U.S.), 06 size: 2 0 L/min (66 32 U.S.)] enles smller vlve size thn conventionl products; compct-sized devices cn e provided. x. perting ressure x. Flow in. ilot ressure ilot Flow L/min (U.S.) odel s (SI) L/min (U.S.) etred Flow Cpcity L/min (U.S.) Differentil ressure Supply Electric ower ower Input (x.) Flow Controls ressure Controls res. dj. Rnge (SI) Supply Electric ower ower Input (x.) utput Signl mient emperture (SI) t Norml t rnsition (SI) dj. Rnge: C dj. Rnge: H EHFB-03-2 (35) 3% or less EHFB-06-0 (35) 2 (66) 0 (32) (.66-66) 5-0 (.32-32).5 (25) (.26) 4 (.06) 0.8 (5).5 (25) (.26) 6 (.59) 0.9 (30) % or less x. Flow / 5 DC 0 24 DC (2 to 28 DC Included Ripple) 0 k ( ) ( ).8- (260-35).5- (25-35) 3% or less % or less 0 x. perting res. / 5 DC 24 DC (2 to 28 DC Included Ripple) 0 k C: 5 DC / 5.7 (2275 SI) H: 5 DC / (35 SI) 0 - C (32-22 F) (With Circulted ir) he repetility of the vlves is otined y hving it tested independently on the conditions similr to its originl testing. odel tion EHFB ype of -03 Size -2 x. etred Flow L/min (U.S.) -C ilot Relief res. dj. Rnge odels with roportionl ilot Relief odels without roportionl ilot Relief -E ilot Connection of Flow Control -S ressure Controls odels with roportionl ilot Relief nd Sensor X Externl ilot res. Connection - F: for hosphte Ester ype (mit if not EHFB: roportionl Electro- Hydrulic Flow Control nd Relief 03 2: 25 ( 66) 06 0: 0 ( 32) Without roportionl ilot Relief C, H : See Internl ilot E: Externl ilot pen-loop S: pen-loop with Sensor 664 High Flow Flow Control nd Relief s

11 SERIES roportionl Electro-Hydrulic Directionl nd Flow Control s hese vlves incorporte two control functions - flow nd direction - which simplify the hydrulic circuit composition nd therefore the cost of the system is reduced. odel s x. perting ressure (SI) x. nk Line Bck res. (SI) Rted Flow L/min (U.S.) [ 6.9 (000 SI)] Frequency Response Supply Electric ower Input oltge ower Input (x.) By Controlling rile Resistnce (Using of ower from mp.) By Controlling oltge (Using of ower outside mp.) mient emperture EHD0 (35) 7 (020) EHD03 (35) 7 (020) 30 (7.92) 60 (5.9) 5% or less % or less 20 Hz (-90 deg.) 7 Hz (-90 deg.) DC (2 to 28 DC Included Ripple) - 2 k olume Rnge 0-5 for SL for SL 0 k 0 k 40 W 45 W 0 - C (32-22 F) (With Circulted ir) etre-in etre-out Control B B 3C2 3C40 etre-out Control B B H he repetility of the vlves is otined y hving it tested independently on the conditions similr to its originl testing. 3C2 3C2 3C40 B B etre-in Control 3C40 EH -Hyrid Components odel tion EHDF ype of -0 Size -30 Rted Flow L/min (U.S.) -3C2 Spool ype -E Direction of Flow -30 F: for hosphte Ester ype (mit if not EHDF: roportionl Electro- Hydrulic Directionl nd Flow Control 0 30: 30 (7.92) 3C2 X : etre-in etre-out X : etre-in 03 60: 60 (5.9) 3C40 : etre-out Spool type shown in the column is for the centre position. Directionl nd Flow Control s 665

12 High Response ype roportionl Electro-Hydrulic Directionl nd Flow Control s hese vlves pursue the ultimte performnce of proportionl electrohydrulic directionl & flow control vlves nd mke themselves to hve high response fetures. he closed-loop is composed in the vlve inside y comintion of differentil trnsformer (LD) nd power mplifier. hus, high ccurcy nd reliility re provided. In ddition to control in the open-loop, these cn e used for the closedloop system s simplified servo vlves. odel s EHD04 EHD06 x. perting res. (SI) 5.7 (2280) 5.7 (2280) Rted Flow L/min (U.S.) res. Difference:.5 (25 SI) 30 (34.3) 280 (73.9) in. Required ilot res. (SI).5 (25).5 (25) in. Required ilot Flow t Norml 2 (.53) 2 (.53) L/min (U.S.) t rnsition 6 (.59) 0 (2.64) x. Drin Line Bck res. (SI) 0. (5) 0. (5) % or less % or less Frequency Response 55 Hz (-90 deg.) 45 Hz (-90 deg.) Supply Electric ower ± 24 DC (± 2 to ± 28 DC Included Ripple) Rted Flow / ± 5 DC ower Input (x.) 0 k 20 W 0 k 20 W lrm Signl utput (pen Collector) oltge: x. 30 DC Current: x. 30 m LD utput (Sensor onitor) ± 5 DC / Rted rvel of Spool mient emperture 0 - C (32-22 F) (With Circulted ir) he repetility of the vlves is otined y hving it tested independently on the conditions similr to its originl testing. odels without ressure Compenstor B W Internl ilot B W X Externl ilot odels with ressure Compenstor odel tion F: for hosphte Ester ype (mit if not EHDF EHDF: roportionl Electro-Hydrulic Directionl nd Flow Control ype of -04 Size Spool type shown in the column is for the centre position Rted Flow L/min (U.S.) 30: 30 (34.3) -2 Spool ype 2 -E ilot Connection Internl ilot B W Internl ilot -CB Relief ype res. Compenstor Not rovided -0 E: : 280 (73.9) 40 CB: Externl ilot rovided High Response ype Directionl nd Flow Control s