Series Shockless Type Solenoid Operated / Solenoid Controlled Pilot Operated Directional Valves

Transcription

1 DIRCIL CROLS Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves he G-Series incorporte electronic circuits o enle djustment of the spool shifting time. specil spool shpe tht minimises shock is used, shocks cused y the ctutor strting nd stopping, s well s virtion due to oil hmmering. he shifting time of conventionl Solenoid Operted, Shockless, nd Directionl Vlves is constnt nd cnnot e djusted. s the shifting time of the G-Series vlves cn e djusted, it cn e set t n optiml level to minimise shocks to the mchine. G-DSG- G-DSHG- Reduces oil hmmering during spool chngeover. Solenoid Vlve Conventionl ype W iping virtion Oil lekge Conventionl ype Oil Hmmering Mchine virtion Lrge mchining errors Reduces shock cused y ccelertion nd decelertion Jerk t strt up Improvement G-Series Vlve G-Series Vlve Slow strt W No virtion No oil lekge nhnced mchining ccurcy Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves No shking Improvement Sudden stop, cusing shock Slow stop Shking Still No shking Stopping ccurcy enhnced Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves 9

2 System Digrm (xmple of sink type wiring) rogrmmle Controller Decelertion Strt Signl Shifting Signl HL V DC DC ower Supply dj. Volume " DJ" dj. Volume " " dj. Volume " " dj. Volume "MIN" Output Current Check (to V) dj. Volume " DJ" dj. Volume " " dj. Volume " " Reltionships etween signls nd flow ptterns Without HL functions With HL functions ttern of Flow (Mx. s) DJ (Mx. s) DJ (Mx. s) (Mx. s) ttern of Flow HL (Mx. s) DJ (Mx. s) MIN Mx. s (Mx. s) (Mx. s) DJ MIN Mx. s Hold for. second or longer Hold for. second or longer he minimum djustment volume is common for nd, nd it is not possile to set different volume for ech nd individully. If the HL functions re not used, set the minimum djustment volume to zero. Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves

3 DIRCIL CROLS Instructions djustment of mximum flow rte he G-Series cnnot e djusted for mximum flow rtes. o djust mximum flow rtes, use flow control vlves. In G-series solenoid controlled pilot operted directionl vlves (G-DSHG-/), the mximum flow rte cn e djusted y use of the vlve with stroke djustment screw of optionl extr. (xmple) G-DSG vlve fully opens fter the durtion. o djust mximum flow rtes, with "G" series solenoid operted directionl vlves (G-DSG-/), flow control vlves such s throttle check modulr vlves re used. With "G" series solenoid controlled pilot operted directionl vlves (G- DSHG-/), mximum flow rtes cn e djusted without flow control vlves ut y using model with stroke djustment (option). How to use HL functions he HL functions re used to drive the ctutor t low speed to the stop position while keeping slight flow fter. flow rte (min. flow rte) during low-speed opertion cn e set with the minimum djusting volume (he minimum djusting volume is common for nd. Individul setting is not possile for nd.) When HL signl is on, the min. flow rte ecomes zero nd the ctutor stops. Here, tke cre to keep the HL signl on for longer thn. second. he min. flow rte gets to "" fter out seconds following the. If the HL functions re not used, set the minimum djusting volume to zero. he HL functions re not pplicle to the spool function "7". HL Mx. s MIN Hold for. second or longer If no HL signl is set on within seconds of the end of, the flow rte decreses grdully. Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves Series Shockless ype Solenoid Operted / Solenoid Controlled ilot Operted Directionl Vlves

4 Series Shockless ype lectronic Circuit Specifictions Descriptions Model Numers G-DSG-- - -/9 G-DSG-- - -/9 Mx. Flow L/min (U.S.GM) (.), (.), (7.9), (.) (.), (.9), (.) Mx. Operting res. M (SI) () () Mx. -Line ck res. M (SI) () () lectric ower Supply Voltge Input ower t V V DC ( - V DC Included Ripple): Use stle power supply W W Shifting signl, low speed opertion hlt signl (cn e used in common with electric power supply). Voltge Current Input interfce - V DC (Use stle power supply) Constnt t m ( constnt-current circuit is used) Sink ype, Source ype Shifting time rnge (for nd ) Low speed opertion flow rte (min. flow rte) rnge (for nd ) L/min (U.S.GM). - s. - (. -.). - s - (. -.) Low speed opertion flow rte (min. flow rte) hold time Mx. s (fter seconds, the flow rte decreses grdully.) mient emperture - C ( - F) with circulted ir Single Solenoid. kg (. ls.). kg (.7 ls.) pprox. Mss Doule Solenoid. kg (. ls.) 7. kg (. ls.). he mximum flow rtes my vry ccording to the operting pressure. Refer to Mximum s Chrcteristics on pges nd for detils.. t pressures more thn M ( SI), the "shockless effect" is slightly less if compred it with tht t M ( SI). Series Shockless ype

5 DIRCIL CROLS Model Numer Designtion G-DSG S - -L Series Numer Vlve Size Metred Flow Cpcity Spool ype Input Interfce Design Numer Design Stndrds Models with lternte Offset Solenoid None : L/min : L/min : L/min C C G-DSG : G Series Shockless ype Solenoid Operted Directionl Vlve, Su-plte Mounting None None : L/min : L/min : L/min : L/min : L/min : L/min 7 C C None: Sink ype (Stndrd) S: Source ype Refer to L pplicle only for 7 (Omit if not required) Su-plte Vlve Model Numers G-DSG- G-DSG- Jpnese Stndrd "JIS" Su-plte Model Numers DSGM-- DSGM-X- DSGM-Y- DSGM-- DSGM-X- DSGM-Y- None : L/min : L/min hred Size Rc / Rc / Rc / Rc / Rc / Rc / uropen Design Stndrd Su-plte Model Numers DSGM-- DSGM-X- DSGM-- DSGM-X- DSGM-Y- 7 Design Stndrds: None... Jpnese Stndrd "JIS" nd uropen Design Stndrd 9... N. mericn Design Stndrd hred Size / S.F / S.F / S.F / S.F / S.F N. mericn Design Stndrd Su-plte Model Numers DSGM--9 DSGM-X-9 DSGM-Y-9 DSGM--9 DSGM-X-9 DSGM-Y-9 hred Size / N / N / N / N / N / N pprox. Mss kg (ls.). (.). (.). (.). (.). (.).7 (.) Su-pltes re ville. Specify the su-plte model numer from the tle ove. When su-pltes re not used, the mounting surfce should hve good mchined finish. Series Shockless ype ttchment (Mtg. olt) Four socket hed cp screws in the tle elow re included. Socket Hed Cp Screw ( pcs.) Model Numers Jpnese Stndrd "JIS" & N. mericn Design Stndrd ightening orque uropen Design Stndrd G-DSG- M Lg. No.- UNC -/ Lg. -7 Nm (- in. ls.) G-DSG- M Lg. /- UNC -/ Lg. - Nm (- in. ls.) Series Shockless ype

6 ypicl erformnce Chrcteristics of "G-DSG-" t Viscosity mm /s ( SSU), Specific Grvity. Mximum Mx.Flow SI ressure Drop ressure Drop M.... L/min ype M G-DSG-- - C G-DSG-- -7 C U.S.GM L/min L/min ype Direction of U.S.GM L/min Direction of Flow Direction of Flow Flow L/min ype Direction of Flow L/min ype L/min ype G-DSG-- ressure L/min ype,, SI L/min Mx.Flow L/min ype M SI ressure - C C G-DSG-- -7 SI M L/min ype. L/min ype L/min ype L/min ype L/min L/min ype ype. L/min ype. L/min ype.. ressure Drop L/min U.S.GM U.S.GM For ny other viscosity, multiply the fctors in the tle right. For ny other specific grvity (G'), the pressure drop ( ') my e otined from the formul elow. '= (G'/.) Viscosity Fctor mm /s SSU U.S.GM U.S.GM L /min Shifting Chrcteristics Supply ressure : M ( SI) : L/min (7.9 U.S.GM) C, C 7 L /min U.S.GM L /min Volume "MIN" osition Volume " " osition 7 7 ms Volume " " osition ms Volume " " osition ms Volume " " osition Low Speed Operting Flow Chrcteristics Supply ressure : M ( SI) : L/min (7.9 U.S.GM) HL Series Shockless ype

7 DIRCIL CROLS ypicl erformnce Chrcteristics of "G-DSG-" t Viscosity mm /s ( SSU), Specific Grvity. U.S.GM L/min Mx.Flow G-DSG--- C C G-DSG--7 G-DSG---7 Mximum G-DSG-- Direction of Flow - C G-DSG-- -7 C L/min ype U.S.GM L/min Direction of Flow L/min ype L/min ype L/min ype Direction of Flow L/min ype M Mx.Flow M Direction of Flow U.S.GM L /min U.S.GM L /min ressure Drop ressure Drop SI M ressure 7 Volume " " osition ms Volume " " osition Volume " " osition ms SI L/min U.S.GM For ny other viscosity, multiply the fctors in the tle right. For ny other specific grvity (G'), the pressure drop ( ') my e otined from the formul elow. '= (G'/.) Shifting Chrcteristics Supply ressure : M ( SI) : L/min (.9 U.S.GM) C, C 7 Volume " " osition 7 7 Viscosity Fctor mm /s SSU U.S.GM Model Numers G-DSG-- C C G-DSG--- C C L/min HL..7 ressure ressure Drop Curve Numers. 7.9 SI he numers of the pressure drop curves re the sme for,, nd Volume "MIN" osition 7 ms Low Speed Operting Flow Chrcteristics Supply ressure : M ( SI) : L/min (.9 U.S.GM) Series Shockless ype Series Shockless ype

8 G-DSG-- -C/C- -/9 Mounting Surfce: ISO----.(.) Di. hrough 9.(.7) C' ore lces ressure ort "" Solenoid Indictor Light (For Sol. ) Solenoid Indictor Light (For Sol. ). (.9) (.).7 (.) Model Numers G-DSG G-DSG "C" hd. G / / N (.). (.) Cylinder ort "" Cylinder ort "" nk ort "". (.) (.) (.). (.7). (.) (.9) lectricl Conduit Connection "C" hd. (oth nds) (.) (.9) 9 (.) 9. (.) Mounting Surfce (O-Rings Furnished) (.) (.) Mnul ctutor (.) Di. ir Vent (oth Sides) (.) Hex. Soc. ir vent position round vlve longitudinl xis cn e optionlly selected. Note: For the vlve mounting surfce dimensions, see the dimensionl drwing of the shrle su-plte in pge. G-DSG /9 DIMNSIS IN MILLIMRS (INCHS). (.) 97. (7.7) 7. (7.) For other dimensions, refer to the drwing ove. Series Shockless ype

9 DIRCIL CROLS G-DSG-- -C/C- -/9 Mounting Surfce: ISO -C--- Model Numers G-DSG G-DSG "C" hd. G / / N Cylinder ort "" (.) (.) ressure ort "" Cylinder ort "" G/ G/. (.) (.) lectricl Conduit Connection "C" hd. (oth nds) Mnul ctutor (.) Di. (.9) 7 (.7). (.9) 9. (.). (.) ir Vent (oth Sides) (.) Hex. Soc. Solenoid Indictor Light (For Sol. ) 7(.) Di. hrough (.) Di. Spotfce lces (.) 7 (.). (.) (.) (.) 9 (.). lthough the tnk port is shown on the left in our su-plte, either my e used.. ir vent position round vlve longitudinl xis cn e optionlly selected. Note: For the vlve mounting surfce dimensions, see the dimensionl drwing of the shrle su-plte in pge 7. G-DSG /9 9 (.7) 9 (.) nk ort "" Solenoid Indictor Light (For Sol. ). (.) Mounting Surfce (O-Rings Furnished) DIMNSIS IN MILLIMRS (INCHS) Series Shockless ype (9.). (.). (.9) For other dimensions, refer to the drwing ove. Series Shockless ype 7