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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS
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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 1

D680 Series Proportional Control Valves with Integrated Electronics ISO 4401 Size 05 to 10

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 2

General Technical Data and Symbols Function, Electronic Technical Data Valve Electronics Failsafe Version Input Command Wiring Schematic Ordering Information MOOG SERVO- AND PROPORTIONAL CONTROL VALVES For over 50 years Moog has manufactured proportional control valves with integrated electronics. During this time, more than 200,000 valves have been delivered. These servo- and proportional control valves have been proven to provide reliable control for injection and blow molding equipment, die casting machines, presses, heavy industry equipment, paper, lumber processing, and other...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 3

OPERATIONAL FEATURES OF THE DIRECT DRIVE PILOT VALVE A direct drive pilot valve requires no pilot leakage flow. This results in considerable energy savings, especially for systems with multiple valves. The dynamics of the direct drive valve is nearly independent of the operating pressure. Reliable operation. The excellent pressure gain of the pilot valve with spool / bushing, provides high spool driving forces to the long stroke main spool. This ensures enhanced main spool position control even with high flow forces and contaminated fluids. Excellent dynamics based on a high natural...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 4

GENERAL TECHNICAL DATA VALVE FLOW CALCULATIONS Operating pressure range Ports P, A and B Port T Pilot pressure The actual valve flow is dependent on the spool position and the pressure drop across the spool lands. Fluid Seal material Operating fluid –20 °C to +60 °C (-4°F to +140°F) –20 °C to +80 °C (-4°F to +170°F) NBR, FPM, and others on request mineral oil based hydraulic fluid (DIN 51524 part 1 to 3) and ISO 11158, other fluids on request Viscosity recommended 15 to 45 mm2/s allowed 5 to 400 mm2/s System filtration Pilot valve: high pressure filter (without bypass, but with dirt alarm)...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 5

D681 Series 2-stage Proportional Control Valve with D633-7... Series Pilot Valve A Hydraulic symbol: Symbol shown with pilot pressure, electric supply enable signal on and zero command signal. X T D683/4.P.. Series 2-stage Proportional Control Valve with D633-7... Series Pilot Valve A Hydraulic symbol: Symbol shown with pilot pressure, without electric supply on enable signal off. Failsafe spool position A T . GENERAL REQUIREMENTS FOR VALVE ELECTRONICS Supply 24 V DC, min. 18 V DC, max. 32 V DC Current consumption Imax. at D68X 200 mA static 800 mA dynamic External fuse per valve at D68X...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 6

VALVE ELECTRONICS WITH SUPPLY VOLTAGE 24 VOLT AND 6+PE POLE CONNECTOR Command signal 0 to ±10 mA floating, Valves with current command input The spool stroke of the valve is proportional to ID = –IE. 100% valve opening P A and B T is achieved at ID = +10 mA. At 0 mA command, the spool is in centered position. The input pins D and E are inverting. Either pin D or E is used according to the required operating direction. The other pin is connected to signal ground at cabinet side. Circuit diagram for measurement of actual value IF (position of main spool) for valves with 6 + PE pole connector...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 7

VALVE ELECTRONICS WITH SUPPLY VOLTAGE 24 VOLT AND 11+PE POLE CONNECTOR Command signal 0 to ±10 mA floating, Valves with current command input The spool stroke of the valve is proportional to I4 = –I5. 100% valve opening P A and B T is achieved at I4 = +10 mA. At 0 mA command, the spool is in centered position. The input pins D and E are inverting. Either pin 4 or 5 is used according to the required operating direction. The other pin is connected to signal ground at cabinet side. Circuit diagram for measurement of actual value I6 (position of main spool) for valves with 11 + PE pole...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 8

TECHNICAL DATA Model ... Type Mounting pattern Valve version ISO, with additional 2nd T port t Pilot valve Series Pilot connection Mass Rated flow Operating pressure max. Response time* Threshold* Hysteresis* Null shift* Null leakage flow* Null leakage flow* Pilot flow* Main spool stroke Spool drive area O/W (spring centered) l/min (gpm) 3.5 (0.92) Standard X and Y kg (lb) O = 6.8 (15) / W = 8.0 (17.6) l/min (gpm) 30 / 60 / 80 (7.9 / 15.9 / 21.1) bar (psi) 350 (5080) bar (psi) 250 (3570) (± 10%) at ΔpN= 5 bar per land Ports P, A, B, T and X with Y external Port T with Y external Ports T...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 9

TECHNICAL DATA Typical characteristic curves at 210 bar pilot or operating pressure, fluid viscosity of 32 mm2/s and fluid temperature of 40°C Flow rate / l/min Flow vs. signal curves at ∆pN = 5 bar (75 psi) per land 100 A T B T with T2 With Q N 60l/min a non standard 2nd return port T2 is required 10 l/min 20 l/min 30 l/min 40 l/min 50 l/min 60 l/min 70 l/min 80 l/min 90 l/min 100 l/min Spool version A: ~critical lap, linear characteristic (80) Spool version D: 10 % overlap, linear characteristic Spool version Y: ~critical lap, curvilinear characteristic (80) Step response D681 - P..H.UF...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 10

1 Electric null adjust (behind screw plug) Attention! Electric null adjust is not possible if the position of the main spool is monitored! The mounting manifold must conform to ISO 4401-05-05-0-94. Attention: Notice O-ring recess dia of X and Y ports. For valves in 4-way version with QN > 60 l/min and in 2x2-way version, the non standard 2nd return port T2 must be used. With 5-way version type B80..., replace T2 to P2. For maximum flow, the manifold ports P, T, A and B are required to have 11.5 mm dia (deviation from standard). Mounting surface needs to be flat within 0.01 mm over a...

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D680 SERIES PROPORTIONAL CONTROL VALVES WITH INTEGRATED ELECTRONICS - 11

TECHNICAL DATA (inch) 1 Electric null adjust (behind screw plug) Attention! Electric null adjust is not possible if the position of the main spool is monitored! INSTALLATION DRAWING (inch) The mounting manifold must conform to ISO 4401-05-05-0-94. Attention: Notice O-ring recess dia of X and Y ports. For valves in 4-way version with QN > 15.9 gpm and in 2x2-way version, the non standard 2nd return port T2 must be used. With 5-way version type B80..., replace T2 to P2. For maximum flow, the manifold ports P, T, A and B are required to have 0.45 inch dia (deviation from standard). Mounting...

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