MOOG_D633_D634伺服阀.pdf-资料库

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DIRECT DRIVE ANALOG CONTROL SERVO VALVES D633 SIZE 03 D634 SIZE 05 HIGH PRODUCTIVITY FOR DEMANDING APPLICATIONS THAT REQUIRE A HIGHLY DYNAMIC RESPONSE AND FLEXIBLE INTEGRATION. WHAT MOVES YOUR WORLD Rev. C, April 2020

INTRODUCTION Direct Drive Analog Control Servo Valves Whenever the highest levels of motion control performance and design flexibility are required, you’ll find Moog expertise at work. Through collaboration, creativity and world-class technological solutions, we help you overcome your tough- est engineering obstacles. Enhance your machine’s perfor- mance, and help take your thinking further than you ever thought possible. INTRODUCTION .............................................................................. 2 Product Overview ..................................................................... 3 Description of Operation ....................................................... 5 Features and Benefits ............................................................ 6 TECHNICAL DATA .......................................................................... 7 Size 03 - D633 Servo Valve .................................................. 7 Size 05 - D634 Servo Valve ................................................12 BACKGROUND ..............................................................................17 Electronics ................................................................................17 Flow Calculation .....................................................................19 ORDERING INFORMATION .......................................................20 Accessories and Spare Parts .............................................20 Moog Global Support ............................................................24 Ordering Code..........................................................................25 This catalog is for users with technical knowledge. To ensure all necessary characteristics for function and safety of the system, the user has to check the suitability of the products described herein. The products described herein are subject to change without notice. In case of doubt, please contact Moog. Moog is a registered trademark of Moog Inc. and its subsidiaries. All trademarks as indicated herein are the property of Moog Inc. and its subsidiaries. For the full disclaimer refer to www.moog.com/literature/disclaimers. For the most current information, visit www.moog.com/industrial or contact your local Moog office. 2 Rev. C, April 2020

INTRODUCTION Direct Drive Analog Control Servo Valves PRODUCT OVERVIEW The D633 and D634 Series are Direct Drive Valves (DDV) with electric closed loop spool position control. These valves are throttle valves for 3-, 4-, and 2x2-way ap- plications. They are suitable for electrohydraulic position, velocity, pressure or force control systems including those with high dynamic response requirements. The spool drive device is a permanent magnet linear force motor, which can actively stroke the spool from its spring centred position in both directions. This is an advantage compared with proportional solenoids with one force direction only. The closed loop spool position control and pulse width modulated (PWM) drive electronics are inte- grated into the valve. The integrated electronics of the valves features SMD technology with pulse width modulated (PWM) current output stage, and requires a 24 VDC power supply. D633 D634 Valve design Size according ISO 4401 Mounting pattern Rated flow at ΔpN 35 bar (500 psi) per spool land Maximum flow Maximum operating pressure - Port P, A, B Step response time for 0 to 100 % stroke D633 1 stage, with spool and bushing Size 03 ISO 4401-03-03-0-05 (with or without leakage oil connection Y) 5 l/min (1.3 gpm) 75 l/min (19.8 gpm) 350 bar (5000 psi) 10 l/min (2.6 gpm) 20 l/min (5.3 gpm) 40 l/min (10.6 gpm) D634 Size 05 ISO 4401-05-05-0-05 (with or without leakage oil connection Y) 60 l/min (15.9 gpm) 180 l/min (47.6 gpm) 100 l/min (26.4 gpm) ≤ 12 ms ≤ 20 ms 3 Rev. C, April 2020

INTRODUCTION Direct Drive Analog Control Servo Valves Explosion Protection Valves D633K and D634K available with explosion protection for Gas: • Ex II 2G Ex db eb IIB+H2 T* Gb according to EN 60079-0, EN 60079-1 and EN 60079-7. • Ex db eb IIB+H2 T* Gb according to IEC 60079-0, IEC 60079-1, IEC 60079-7. Valves D633D available with explosion protection for Dust: • Ex II 2D Ex tb IIIC T155°C Db • Ex II 3D Ex tc IIIC T155°C Dc according to EN 60079-31, EN 600079-0. Note: Installation dimensions and electric connection altered. PRODUCT OVERVIEW Design and Application A permanent magnet linear force motor is used to drive the spool. In contrast to proportional solenoid drives, the linear force motor drives the spool in both working direc- tions from the spring-centered middle position. The strong actuating force of the spool, provides Moog Servo Valves with excellent static and dynamic characteristics. Spool Position Control In this operating mode of the servo valve, the spool position is controlled. The command signal is proportional to a desired spool position. A position transducer (LVDT) measures the spool‘s actual position, and forwards this information to the valve electronics. The system electron- ics compare the actual spool position with the command signal. This generates a signal that drives the linear force motor and brings the spool to the correct position. Optional Valve Features Moog offers a range of optional features. These include options to ruggedize valves for operation in extremely demanding environments, and valves designed for special applications and fluids. The following sections provide short overviews of these functions. Please contact Moog for more detailed information. Valves for Operation with Ester Based Fluids Standard hydraulic seal materials such as HNBR and FKM, are frequently incompatible with fire resistant phosphate ester based fluids. In order to use valves with this type of fluid, Moog offers them as special seal versions that are mineral oil and phosphate ester resistant. Please note: These valve types are tested by Moog using mineral oil, remnants of which will remain in the valve after testing. 4 Rev. C, April 2020

INTRODUCTION Direct Drive Analog Control Servo Valves DESCRIPTION OF OPERATION Main Features • Direct drive with permanent magnet linear force motor that provides high actuating force, works in 2 direc- tions. • Direct operated - no pilot oil required. • Pressure-independent dynamic response. • Low hysteresis and high response characteristics. • Lower power demand in and around the spool center • position. This results in lower energy consumption during the majority of operating and stand by times. If the electrical supply fails, a cable breaks or emer- gency stop is activated, the spool returns to the predefined spring-centered position without passing a fully open control port position increasing safety. Permanent Magnet Linear Force Motor The Linear Force Motor (LFM) is a permanent magnet excited differential motor. The LFM’s armature (4) is connected to the valve spool via a rod. Also connected to this rod are the centering springs (2), which keep the LFM in its center position. The permanent magnets (1) supply part of the motor’s force. In combination with the force created by the coil (5), the force level of a Linear Force Motor is higher than that of a proportional solenoid of similar size. The LFM has a neutral mid-position from which it gen- erates force and stroke in both directions. This is an advantage over a proportional solenoid drive, which can only operate in one direction. The LFM’s force is roughly proportional to the coil current. To move out of the center position, a PWM current is applied to the coil and the spool is deflected against the centering springs. To move back towards the center position, a reverted PWM current is applied to the coil, which causes the LFM to actively move the spool towards the center. This movement is supported by the centering springs. Due to the high force levels of the LFM it is able to overcome flow and frictional forces, and still guarantee a precise and dynamic positioning of the spool. 1 2 3 4 8 7 T A P YB 6 5 1 Null adjust cover plug 2 Valve connector 3 4 5 6 7 8 Spool Bushing Centering spring Linear force motor Position transducer Integrated electronics 1 2 6 5 4 3 Permanent magnets 1 Centering springs 2 3 Screw plug 4 Armature 5 6 Coil Bearing 5 Rev. C, April 2020

INTRODUCTION Direct Drive Analog Control Servo Valves FEATURES AND BENEFITS Features D633 and D634 Series Servo Valves Direct operated servo valves Linear Force Motor with high force level and push-pull operation Precise spool positioning with low hysteresis and thresh- old High valve dynamics Spool slides in precisely manufactured and fully hardened steel bushing Benefits No pilot oil required, valve dynamics are not dependent on pilot pressure Precise and dynamic valve operation even at high pressure drops High control accuracy for demanding closed loop control tasks Supports highly dynamic control tasks Low internal leakage, high control accuracy and high wear resistance 6 Rev. C, April 2020

TECHNICAL DATA Direct Drive Analog Control Servo Valves 1 stage, with spool and bushing ISO 4401-03-03-0-05 (with or without leakage oil connection Y) Any 2.5 kg (5.51 lb) -40 - +80 °C (-40 - +176 °F) -20 - +60 °C (-4 - +140 °F) 30 g, 3 axis, 10 Hz to 2 kHz 50 g, 6 directions, 3 ms 150 years SIZE 03 - D633 General Technical Data Valve design Mounting pattern Installation position Weight Storage temperature range Ambient temperature range Vibration resistance Shock resistance MTTFd value according to EN ISO 13849-1 Hydraulic Data Maximum operating pressure - Port P, A, B Maximum operating pressure - Port T without Y Maximum operating pressure - Port T with Y Maximum operating pressure - Port Y Rated flow at ΔpN 35 bar (500 psi) per spool land Maximum flow Hydraulic fluid Leakage flow (rate) (≈ zero lap)1) 20 l/min (5.3 gpm) 40 l/min (10.6 gpm) 350 bar (5000 psi) 50 bar (725 psi) 350 bar (5000 psi) Depressurized to tank2) 10 l/min 5 l/min (1.3 gpm) (2.6 gpm) 75 l/min (19.8 gpm) Hydraulic oil as per DIN 52524 parts 1 to 3 and ISO 11158. Other fluids upon request. 0.3 l/min 0.15 l/min (0.04 gpm) (0.08 gpm) -20 - +80 °C (-4 - +176 °F) 15 - 100 mm2/s (cSt) 5 - 400 mm2/s (cSt) 18/15/12 0.6 l/min (0.16 gpm) 1.2 l/min (0.32 gpm) Temperature range Recommended viscosity range at 38 °C (100 °F) Maximum permissible viscosity range at 38 °C (100 °F) Recommended cleanliness class as per ISO 4406 for functional safety Recommended cleanliness class as per ISO 4406 for longer service life 1) Measured at 140 bar (2,000 psi) system pressure, oil viscosity 32 mm2/s and oil temperature 40 °C (104 °F). 2) In order to avoid an emptying of the return line, a back-pressure of 2 bar (29 psi) should be maintained on the T, T1 and Y connections. 17/14/11 Typical Static and Dynamic Data1) Step response time for 0 to 100 % stroke Threshold, typical Threshold, maximum Hysteresis, typical Hysteresis, maximum Null shift at ΔT = 55 K (131 °F) Sample deviation of rated flow 1) Measured at 140 bar (2,000 psi) system pressure, oil viscosity 32 mm2/s and oil temperature 40 °C (104 °F). ≤ 12 ms 0.05 % < 0.1 % 0.1 % < 0.2 % < 1.5 % < 10 % 7 Rev. C, April 2020

TECHNICAL DATA Direct Drive Analog Control Servo Valves SIZE 03 - D633 Electrical Data Duty cycle Degree of protection according to IEC/EN 60529 Supply voltage1) Permissible ripple of supply voltage2) Maximum current consumption3) Power consumption of the motor in middle position Power consumption maximum Fuse protection, external, per valve EM compatibility 100 % IP65 with mounted mating plugs 24 VDC, min. 19 VDC, max. 32 VDC ±3 VRMS 1.2 A 9.6 W (0.4 A @ 24 VDC) 28.8 W (1.2 A @ 24 VDC) 1.6 A (slow) Immunity to interference as per DIN EN 61000-6-2 (evalu- ation criterion A) 1) All connected circuits must be isolated from the main supply by „electrical separation” in accordance with IEC/EN 61558-1 and IEC/EN 61558-2-6. Voltages must be limited to the safety extra-low voltage range in accordance with EN 60204-1. We recommend the use of SELV/PELV power packs. 2) Frequency from 50 Hz to 10 kHz. 3) Measured at ambient temperature 25 °C (77 °F) and supply voltage 24 V. 8 Rev. C, April 2020

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