D660 Series Servo-Proportional Control Valves with …

1 D660 SeriesServo- proportional Control Valveswith Integrated ElectronicsISO 4401 Size 05 to 10 OVERVIEWS ectionPageOverview2 3 Technical Data4 5 Electronics6-9 Performance Versions20-25 Ordering Information26-27 MOOG Servo-Proportional Control VALVESFor over 25 years Moog has manufactured proportional Control valveswith integrated electronics. During this time more than 150,000 valveshave been delivered. These proportional Control Valves have beenproven to provide reliable Control of including injection and blowmolding equipment, die casting machines, presses, heavy industryequipment, paper and lumber processing and other Series Servo-Proportional Control VALVESThe D660 Series proportional flow Control Valves are throttle Valves for2, 3, 4 and 5-way applications.

2 These Valves are suitable forelectrohydraulic position, velocity, pressure or force Control systems,including those with high dynamic response time, Moog Servo-Proportional Valves have undergonecontinuous improvements. Moog s ServoJet pilot stage reducesenergy consumption and enhances the Valves robustness. This pilotstage uses the jet pipe principle, which has been used reliably withdifferent Moog Valves for over 10 have updated D660 Series Servo-Proportional Valves with newintegrated 24 VDCelectronics which improve valve dynamics improved D660 Series is designed to enhance the stability andperformance of the Valves in a wider variety of applications, increasethe number of signal options and improve the fail-safe functionality ofan have also redesigned the valve s ServoJet pilot stage, reducinghysteresis and null shift and improving pressure gain.

3 Also, theupdated ServoJet pilot stage now has the ability to operate at a plusor minus 150 mA rated new integrated electronics improve valve dynamics by up to 30percent and now have a 24 VDCsupply voltage, as well as 4 to 20 mAspool position output as in the D660 Series allow the 90 phase lag frequency responsecharacteristic for small signals (10% amplitude) to increase from 78 Hzto 90 Hz in the D661 Series , (NG 10).Other improvements in the D660 Series address many safetyconsiderations in die-casting machines, injection-molding machinesand presses. These include: The valve now places an enable signal at the operator s no enabled signal is available, the spool in the second stagemoves to a predefined position (hydraulic zero or end position)depending on valve variant.

4 The valve monitors supply voltage. If voltage on the updatedvalve (18 V up to 32 V) should drop below 18 V, the end positionwill be disconnected and the spool will move to its predefinedposition (fail-safe). It will be monitored as soon as it reaches thisposition and will be confirmed by a logic output. The logic outputs are short circuit protected. Maximum continuousvoltage is 32 V with surge pulses up to 500 V and burst of 4 kV (perEMC standard).D660 Our quality management systemis certified in accordance with DINEN ISO valve Series described in thiscatalogue have successfullypassed EMC tests required by ECDirective.

5 Please refer to therespective references in theelectronics available with explosionprotection to EN 50018, class EExd LL C-C 2 H 2 T5. Note: Installation dimensions andelectric connection data sheet on catalogue is for users with technical ensure that all necessary characteristics forfunction and safety of the system are given, the userhas to check the suitability of the products describedherein. In case of doubt please contact D660 SeriesFail-safe optionD660 Valves are available with either amechanical or electrically controlled fail-safe option. Certain conditions must existfor the fail-safe to work reliably.

6 See thetype designation section for fail-safe onpage 20 for more information. Flexible Design Elements Optimize the Valve to Your ApplicationThe D660 Series proportional Control Valves are of two-stageor three-stage design. The spool motion of the main stage isproduced by either a single-stage or a two-stage pilot proportional Valves are mainly used when lowthreshold and good dynamic response with small signals arerequired. The three-stage proportional Valves are suitable forgood dynamic response with large combining a fast first stage, a suitable spool drive areaand integrated electronics, an optimum proportional valve canbe offered.

7 Highest Flow Capability for high Velocity ApplicationsThe D07 to D10 (NG 16 to NG 32) D660 Series Valves offer thehighest flow per body Spool Drive Area for Improved Dynamic ResponseThe D07 to D10 (NG 16 to NG 32) D660 Series Valves are availablewith a stub shaft spool for higher valve Versions for User Defined Spool Position at Loss of PowerMechanical and electrically controlled fail-safe versions providedefined safe spool position by a spring and/or a poppet valve,and/or by external hydraulic supply cut ServoJet Pilot Stage Dynamics for high Dynamic Valve DesignThe high natural frequency of the ServoJet pilot stage (500 Hz)allows for higher overall valve Frequency Response for Superior Control System PerformanceImproved frequency response of the ServoJet pilot stage valveallows high spool position loop gain.

8 The high loop gainprovides excellent static and dynamic response, resulting insuperior Control system ServoJet Pilot Stage pressure Recovery for Reliable OperationThe high - pressure recovery of the ServoJet pilot stage (morethan 80% P at 100% command signal) provides higher spooldriving forces and ensures enhanced spool position Resistance to Contamination Reduces Down TimeThe ServoJet pilot stage Valves have larger internal clearancesmaking it more tolerant to contamination. The pilot stage filterhas almost unlimited life due to an increased filter size (200 mnominal fineness).FEATURES&BENEFITSD6602-Stage proportional Control ValveNew 24 V ElectronicsServoJet Pilot ValveXT A P B T2 YMoog D660 Series3 Annular AreaNozzleReceiverJet PipeTECHNICALDATAOPERATING PRINCIPLE OF THE MULTI-STAGE VALVED660D661 Series , 2-stage proportional Control valve Fail-safe version F, opening A THydraulic Symbol:Symbol shown with pilot pressure and electric supply on and zerocommand PRINCIPLE OF THE SERVOJET PILOT STAGEThe ServoJet pilot stage consists mainly of torque motor, jetpipe and receiver.

9 A current through the coil displaces the jetpipe from its neutral position. This displacement combined withthe special shape of the nozzle, directs a focused fluid jet fromboth receivers towards one jet now produces a pressure difference in the Control pressure difference results in a pilot flow, which in turncauses a spool displacement. The pilot stage drain is through theannular area around the nozzle to P B T2YD662 Series with pilot valve D630 Series 3-Stage proportional Control Valve Fail-safe version F, opening A TTA P B Y XHydraulic symbol:Symbol shown with pilot pressure and electric supply on and zerocommand position Control loop for the main stage spool is closed bythe integrated electronics.

10 An electrical command signal (flowrate set point) is applied to the integrated position controllerwhich drives the valve coil. The position transducer (LVDT) whichis excited via an oscillator, measures the position of the mainspool (actual value, position voltage).This signal is then demodulated and fed back to the controllerwhere it is compared with the command signal. The controllerdrives the pilot valve until the error between command signaland feedback signal is zero. Thus, the position of the main spoolis proportional to the electrical command D660 Series TECHNICALDATAPERFORMANCE SPECIFICATIONS FOR STANDARD MODELSD661-D665D665D665D664D663D662D662D 661D661D66130002000100050010050105150100 030005000500145 gpm [550 l/min]92 gpm [350 l/min]40 gpm [150 l/min]21 gpm [80 l/min]16 gpm [60 l/min]8 gpm [30 l/min]1000 gpm [3785 l/min]685 gpm [2595 l/min]375 gpm [1420 l/min]238 gpm [900 l/min]170 gpm [645 l/min]100 gpm [375 l/min]54 gpm [205 l/min]40 gpm [150 l/min]21 gpm [80 l/min]66 gpm [250 l/min]400 gpm [1500 l/min]265 gpm [1000 l/min]Flow Rate Q [gpm]Rated pressure Drop pN = 150 psi[10 bar]