Proportional solenoid relief valves EPCG2-03/06/10

Transcription

1 roportional solenoid relief valves ECG-// Functional Symbol X Y his valve utilizes a proportional solenoid actuator to provide proportional control of hydraulic circuit pressure. Model Code - ECG---Y-L- roportional solenoid relief valve Size ressure adjustment range Refer to Specifications. Specifications Model Code Size Max. working pressure Max. flow Max. adjustable pressure Rated current Coil resistance Hysteresis Repeatability Weight ressure adjustment range code L/min A Ω kg ECG.. Less than %* Less than %* Drain Y: external drain (standard) Manual adjustment knob Omit: front, L: left Design no. Connector DIN connector pin layout Connector Solenoid * No polarity for terminal, roportional solenoid electrical wiring diagram Note: * indicates the value when using controller -X- or equivalent.

2 Characteristics Curve (at mm /s) (typical examples) Input Current ressure Characteristics ECG- ECG- ECG- Input 入電流 current ma ma Input 入電流 current ma ma Input 入電流 current ma ma Flow ressure Characteristics ECG-- ECG-- ECG-- - ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG-- ECG--

3 Characteristics Curve (at mm /s) (typical examples) Minimum Control ressure ECG- ECG- ECG Step Response Characteristics.. シグナル Signal ECG-- ECG-- ECG-- Oil volume 油量 L L. sec Oil temperature 油温 C Controller: コントローラ -X- :-X- (Ramp time delay employed) ( ランプ形時間遅れ使用 ).. シグナル Signal Oil volume 油量 L L.sec Oil temperature 油温 C Controller: -X- コントローラ :-X- (Ramp time delay employed) ( ランプ形時間遅れ使用 ).. シグナル Signal Oil volume 油量 L L.sec Oil temperature 油温 C Controller: コントローラ -X- :-X- (Ramp time delay employed) ( ランプ形時間遅れ使用 ) Notes on Operation Air bleed For stable pressure control, loosen the air bleed plug and bleed air completely out of the valve prior to use. Manual adjustment In case there is no input current to the solenoid during initial adjustment or electric malfunction, pressure may be set manually with the pressure adjustment knob. Return knob to counterclockwise direction upon electro-magnetic control. Minimum control flow ressure setting may be unstable in the case of low flow. Maintain minimum flows above values shown in the table below. Valve 弁形式 Model Minimum 最小制御流量 Control Flow L/min L/min ECG-. ECG- ECG- Drain piping (drain) allowable back pressure is.. Drain piping should be directly returned to tank. Ensure that end of the piping is always below the fluid level. ank piping Do not connect with piping of other tanks, each should be directly returned to tank. Ensure that end of the piping is always below the fluid level. Vent piping Care should be paid when the vent line piping is long as the large volume of fluid in the pipes may cause instability in pressure control. Zero adjustment his is adjusted at factory before shipment. Readjustment is not necessary. Main valve setting pressure he main valve is set at the maximum adjustable pressure plus. as safety valve (flow is set at / of max. flow). When using the valve mounted on subplate, connect drain from main valve cover Y-port (Rc /). Mounting Bolts (IS B, Strength Class.9) Valve 弁形式 Model 六角穴付きボルト Hex Socket Bolts Metric メ-トルねじ hread ユニファイねじ Unified hread 本数 Qty ECG- M /-UNC. ECG- M /-UNC. ECG- M /-UNC. Mounting bolts must be ordered separately. Mounting bolt tightening torque ECG-: to N m ECG-: 9 to N m ECG-: to N m Subplate Valve 弁形式 Model サブプレ Subplate -ト形式 Connection 接続口径 ort Dia. Rc ECG- CGM---A- / ECG- CGM---A- / ECG- CGM---A- -/ Subplate must be ordered separately. Hex socket bolts for mounting valve included. (Unified thread) See page R- for dimensions. Note: When using subplate, care should be paid to working flow and piping resistance in order to avoid high minimum pressures and poor flowpressure override characteristics. -

4 Dimensions ECG- Mounting dimensions -φ -M, deep. φ., deep. Wiring port (DIN connector) Cable gland g. Wire diameter φ to 9 Air bleed plug ( locations). Hex socket,. across flats Max. 9. Approx... X Y. -φ Manual pressure control knob X port (vent) port (drain). Lock screw Min. pressure adjustment shaft (Adjusted and locked before shipment from factory. Consult okyo Keiki if Rc/ ressure gauge port Rc/. -φ. hole adjustment is required.). φ. locating pin port φ9. counterbore depth. - ECG- Wiring port (DIN connector) Cable gland g. Max.. (L type ) 9. Wire diameter φ to 9 Air bleed plug ( locations).. Hex socket,. across flats Approx. 9 Manual pressure X port control knob (vent) Lock screw ressure gauge port Rc/ (drain) Min. pressure adjustment shaft. 9.. (L type.) (Adjusted and locked before shipment from factory. Consult okyo Keiki if adjustment is required.). (drain) Rc/ 9. port 9. -φ. hole φ. locating pin port 9. φ. counterbore depth. -φ -φ Mounting dimensions. X Y..... φ., deep M, deep

5 Dimensions ECG- Wiring port (DIN connector) Cable gland g. Wire diameter φ~9 Air bleed plug ( locations). Hex socket,. across flats Manual pressure X port control knob (vent) Max.. Approx.. (drain) Rc/. (L type.) ressure gauge port 9 Rc/ (drain) 9. 9 (L type 9) Lock screw Min. pressure adjustment shaft (Adjusted and locked before shipment from factory. Consult okyo Keiki if adjustment is required.) 9 9 port. -φ hole. φ. locating pin port. 9 φ counterbore depth 9.. -φ9 -φ 9 Note: Consult okyo Keiki for dimensional details in case of left orientation (L type) manual adjustment knob. Mounting dimensions.. φ., deep. X Y M, deep -

6 Construction * * seat is press-fitted into 9 body. * seat is press-fitted into body * 9 Spring ECG- Code 記号 9 V VA VA9 VA ~ V VA ECG- Code 記号 9 V VA9 VA9 VA9 ~ V VA9 ECG- Code 記号 9 V VA VA9 VA ~ V VA O-ring ECG- 照号 No. 部品番号 art No. Standard 規格 個数 Qty 9 AS-(NBR,Hs) 9 AS-(NBR,Hs) 999 AS-9(NBR,Hs9) 99 AS-(NBR,Hs9) 999 AS-9(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) ECG- 照号 No. 部品番号 art No. Standard 規格 個数 Qty 9 AS-(NBR,Hs) 9 AS-(NBR,Hs) 99 AS-(NBR,Hs9) VA 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) ECG- 照号 No. 部品番号 art No. Standard 規格 個数 Qty 9 AS-(NBR,Hs) 9 AS-(NBR,Hs) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) 99 AS-(NBR,Hs9) Note: For L type, 99 used for O-ring.