LSVG-01/03EH (Direct linear servo operated valves, 3 ms response time.)
8Pages

OBE (On-Board Electronics) Type Direct Operated Linear Servo Valves (Size: 01 & 03) LSVG-01-EH-*-**-**-10, LSVG-03EH-*-**-**-10/1006 Release of New Products We are pleased to announce the release of OBE (on-board electronics) type direct operated linear servo valves. Based on the design concepts of our high speed linear servo valves (LSVG) and OBE type linear servo valves (LSVHG-*EH), the direct operated servo valves provide “high accuracy, simple operation, and user-friendliness.” Features High Accuracy The valves have a low hysteresis of 0.1 % or less, achieving high accuracy. They allow the main unit to operate with much higher repeatability. High Response The valves provide higher levels of step and frequency responses, which are typically used as measures of response characteristics; the step response is 3 ms (0 100 %) , and the frequency response is 260 Hz/- 3 dB ( ± 25 % amplitude) ( : typical values for LSVG-03EH with the Y port (dry type)). Simple Operation Just with 24 V DC power supply and command signal input, the valves allow the accurate operation of hydraulic control systems. User-friendliness The on-board amplifier has a fault indicator lamp. If a valve error occurs and causes a deviation between the command signal and the spool position, the lamp indicates the error immediately. Excellent Contamination Resistance The simple structure of the direct operated valves and the adoption of a powerful linear motor provide excellent contamination resistance. The permissible level of fluid contamination for these valves is up to NAS class 10. With Y Port (Dry Type) Without Y Port (Wet Type) Model Number Designation F- Special Seals Series Number Valve Size Amplifier Type Drain Port (Y) and Permissible Back Pres. Fail-Safe Function Input Signal/Spool Travel Monitoring F: Special Seals for Phosphate Ester Type Fluid (omit if not required.) 01 LSVG: Direct Operated Linear Servo Valve For the wet type, water-glycol fluids cannot be used. None: With Y Port (Dry Type) (Permissible Back Pres.: 0.05 MPa) W: Without Y Port (Wet Type) A: PABT B: PBAT C: Neutral A: Voltage Signal ± 10 V (P B A T Flow with Positive Input) B: Current Signal 4 - 20 mA (P B A T Flow with 12 - 20 mA Input) C: Current Signal ± 10 mA (P B A T Flow with Positive Input) D: Voltage Signal ± 10 V (P A B T Flow with Positive Input) E: Current Signal 4 - 20 mA (P A B T Flow with 12 - 20 mA Input) F: Current Signal ± 10 mA (P A B T Flow with Positive Input) 1: 6 + PE Pole 2: 11 + PE Pole - With “Enable” Function - With “Valve Ready” Function - With “Alarm Output” Function

The values in parentheses in the specification table below are applicable to the models “LSVG-*EH-*-W*-” (wet type). Model Number Item Rated Flow at P = 7 MPa (1) Max. Operating Pres. Proof Pres. at Return Port 3 Drain Port (Y) Permissible Back Pres. ( ) Internal Ps = 14 MPa Leak Viscosity: 32 mm2/s Hysteresis Ps = 14 MPa Step Response (Typical) (4) (0 100 %) Frequency Gain: -3 dB Response (±25 % Amplitude) Phase: -90 ° (Typical) (4) Vibration Proof Protection Ambient Temperature Spool Stroke to Stops Polarity Linear Motor Current Specification Coil Resistance Approx. Mass Electric...

(') Differential input signals can be used only for the valves with the voltage signal specifications of +10 V (2) The recommended load resistance is 200 Q.. Input Signal Input Signal

Input Signal I "'F"'v'' " ^«kQ gjjl \ J^^H ~^>~ Spool Travel Monitoring F O-c^" U— Protective Earth LVDT Amplifier *1. The input stage for the models LSVG-*EH-*-*-Bl/Cl/El/Fl (current signal) is as follows. Power Supply Enable Input Valve Ready Input Signal Spool Travel Monitoring 6 ★ 1. The input stage for the models LSVG-*EH-*-*-B2/C2/E2/F2 (current signal) is as follows.

Indicator Lamp Cylinder Port “A” Color Green Red Yellow Indicator Lamp Power Supply Deviation Alarm Overload 5.5 Dia. Through Protective Screw for NULL Adjuster Hole 9.5 Dia. C’Bore 4 Places M5 (+) Thd. Tank Port “T” Cylinder Port “B” Cable Applicable: Outside Dia. 8 - 10 mm Air Vent 2.5 Hex. Soc. (For Wet Type Only) Mounting Surface (O-rings Furnished) External Drain Port “Y” Rc 1/8 (Back Side) (Connect piping in such a way that negative pressure is avoided. For the wet type, no piping work is required.) 1. For NULL adjustment, remove the protective screw and turn the trimmer behind the...

Indicator Lamp Indicator Lamp Color Green D Dia. Through 4 Places E Dia. C’Bore Protective Screw for NULL Adjuster Hole M5 (+) Thd. Cylinder Port “A” Pressure Port “P” Cable Applicable: Deviation Alarm Drain Port “Y” (Used for Dry Type Only) Power Supply Air Vent 2.5 Hex. Soc. (For Wet Type Only) Mounting Surface (O-rings Furnished) 1. For NULL adjustment, remove the protective screw and turn the trimmer behind the screw. After adjustment, be sure to attach the protective screw. O-rings for the Ports Port P, A, B, T Y JIS B2401-1B-P7 1 O-rings made of fluorinated rubber are required to use...

Characteristics of LSVG-01EH-4/10/20 (Fluid Viscosity: 30 mm2/s) ■ No-Load Flow Characteristics <Conditions> • Valve Pres. Difference: 7 MPa

51 Spindus Road, Speke Hal Industrial Estate <Conditions> • Hydraulic Circuit: Port A/B Closed Systems requiring high response speed, including high speed injection molding machines, various testing equipment, and steel mill equipment.