Proportional pressure control cartridges with integral pressure transducer
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- Elijah McDowell
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1 able FS2/E Proportional pressure control cartridges with integral pressure transducer digital, closed loop high performances compensator, relief, reducing functions, rugged design Poppet Cover Mechanical pressure limiter Proportional solenoid Integral pressure transducer Integral electronics US connector Fieldbus connector Main connector Screw for air blending 1 MODEL CODE FOR COVERS Proportional cartridge valves LICZO = pressure compensator LIMZO = pressure relief LIRZO = pressure reducing R = closed loop pressure control = omit for execution with separated driver see section E = basic integral driver ES = full integral driver Valve size ISO 7: 1 = 1; 2 = 2; = 2; = 0; = 0 (not for LIRZO) = ; (only for LIMZO) = ; (only for LIMZO) LIMZORESPC LIMZO R E P NP / 1 / * / * ** / * Seals material, see sect., : = NR PE = FKM = HNR P = with integral pressure transducer Fieldbus interfaces US port always present (1) NP = Not present C = CANopen Cartridge ISO 7 P = PROFIUS DP EH = EtherCA 2 MODEL CODE FOR CARRIDGES Size: 1; 2; 2; 0; 0; ; A Hydraulic options: P =with integral mechanical pressure limiter (standard for size 1, 2 and ) Electronics options only for RE and RES see section 1 : I = current reference input and monitor 20 ma (omit for standard voltage reference input 0 10 V) Q = enable signal Z = double power supply, enable, fault and monitor signals 12 pin connector Max regulated pressure: 100 = 100 bar 210 = 210 bar (1) Omit for R execution; RE available only in version NP; RES available only in version C, P, EH LICZO, LIMZO and LIRZO 2way digital proportional cartridge valves with integral pressure transducer, respectively performing: pressure compensator, relief and reducing closed loop functions. Executions: R without integral driver, to be coupled with separated driver type EMRES, see table GS20 RE with basic integral digital electronic driver, analog reference signals and US port for software functional parameters setting RES with full integral digital electronic driver and fieldbus interface for functional parameters setting, reference signals and realtime diagnostics he integral digital electronic driver performs the valve s hydraulic regulation according to the reference signal and assures valvetovalve interchangeability thanks to the factory presetting Size: 1 to Max flow: up to 00 l/min Max pressure: bar Series number Dynamic response preset see section 11 : = omit for PID 1 fast (default) 2 = PID 2 standard = PID smooth Series number 1 = 1 bar = bar SC LI ** / * Seals material, see sect., : = NR PE = FKM ype of cartridge, see section for hydraulics symbols 1 = for LIMZO and LICZO = for LICZO 7 = for LIRZO Spring cracking pressure: 2 = 1, bar for poppet 1 = bar = bar for poppet 1 and = bar 7 = 7 bar for poppet 7 FS
2 Hydraulic symbols LICZO LICZOR1 LICZOR /P LICZOR LICZOR LICZORE(RES)1 LICZORE(RES) /P LICZORE(RES) LIMZO LIMZOR1 LIMZOR /P LIMZOR LIMZORE(RES)1 LIMZORE(RES) /P LIMZORE(RES) LIRZO LIRZOR1 LIRZOR /P LIRZOR LIRZORE(RES)1 LIRZORE(RES) /P LIRZORE(RES) ELECRONIC DRIVERS Valve model Drivers model ype Format Data sheet R EMRES DIN rail panel format GS20 RE RES ERIRE ERIRES Digital Integral to valve GS20 Note: for main and communication connectors see sections 1, 17 GENERAL NOES LICZO R*, LIMZO R* and LIRZO R* proportional valve are CE marked according to the applicable Directives ( e. g. Immunity/Emission EMC Directive and Low Voltage Directive). Installation, wirings and startup procedures must be performed according to the general prescriptions shown in table F00 and in the installation notes supplied with relevant components. he electrical signals of the valve (e.g. monitor signals) must not be directly used to activate safety functions or components, as prescribed by the European standards (Safety requirements of fluid technology systems and componentshydraulics, EN92). FIELDUS only for RES Fieldbus allows the direct communication of the proportional valve with machine control unit for digital reference signal, diagnostics and settings of functional parameters. Analog reference signal remain available on the main connector for quick commissioning and maintenance. For detailed information about fieldbus features and specification see tech table GS10.
3 MAIN CHARACERISICS based on mineral oil ISO VG at 0 C Assembly position Valve model Valve size Max flow [l/min] Min regulated pres. at port A [bar] Min regulated pres. at port A for / [bar] Max regulated pres. at port A [bar] Response time 0100% step signal (1) [ms] (depending on installation) Hysteresis [% of regulated max pres.] Linearity [% of regulated max pres.] Repeatibility [% of regulated max pres.] hermal drift Any position Subplate surface finishing Roughness index, Ra 0, flatness ratio 0,01/100 (ISO 1101) MFd valves according to EN ISO 19 7 years, see technical table P007 Ambient temperature range R: standard = 20 C +70 C, / option = 0 C +0 C RE, RES: standard = 20 C +0 C, / option = 0 C +0 C Storage temperature range R: standard = 20 C + C, / option = 0 C +70 C RE, RES: standard = 20 C +70 C, / option = 0 C +70 C Coil resistance R at 20 C Max. solenoid current, W 2, A Max. power R = Watt RE, RES = 0 Watt Pressure transducer Insulation class Protection degree to DIN EN029 ropicalization (only RE, RES) Duty factor EMC, climate and mechanical load Communication interface (only RE, RES) Communication physical layer (only RE, RES) EAR/*/I output signal = 20 ma see tech. table G H (1 ) Due to the occuring surface temperatures of the solenoid coils, the European standards ISO 1721 and EN92 must be taken into account IP/7 with mating connectors ropical coating on electronics PC Continuous rating (ED=100%) See technical table G00 US Atos ASCII coding not insulated US US OG LICZO 100; 210; 1; ; 210; 1; 0, 1 0,2 zero point displacement < 1% at D = 0 C Notes: above performance data refer to valves coupled with Atos electronic drivers, see section 2 00, CANopen EN02 + DS0 optical insulated CAN ISO119 (1) Average value response time; the pressure variation in consequence of a modification of the reference input signal to the valve is affected by the stiffness of the hydraulic circuit: greater is the stiffness of the circuit, faster is the dynamic response, see section 11 (2) consult our technical office PROFIUS DP EN01702/IEC11 optical insulated RS LIMZO , (2) 1 EtherCA IEC 11 Fast Ethernet, insulated 100 ase X 1 10 LIRZO ; 210; 1; SEALS AND HYDRAULIC FLUID for other fluids not included in below table, consult our technical office NR seals (standard) = 20 C +0 C, with HFC hydraulic fluids = 20 C +0 C Seals, recommended fluid temperature FKM seals (/PE option) = 20 C + C HNR seals (/ option) = 0 C +0 C, with HFC hydraulic fluids = 0 C +0 C Recommended viscosity mm 2 /s max allowed range 1 mm 2 /s Fluid contamination class ISO 0 class 20/1/1 NAS 1 class 9, achievable with in line filter 10 mm (b10 _>7 recommended) Hydraulic fluid Suitable seals type Classification Ref. Standard Mineral oils Flame resistant without water Flame resistant with water NR, FKM, HNR FKM NR, HNR HL, HLP, HLPD, HVLP, HVLPD HFDU, HFDR HFC DIN 12 ISO AIR LEEDING At the first valve commissioning the air eventually trapped inside the solenoid must be bledoff though the screw located at the rear side of the solenoid housing. he presence of air may cause pressure instability and vibrations. FS
4 9 HYDRAULIC OPIONS 9.1 Option /P integral mechanical pressure limiter (standard for size 1, 2 and ) LICZOR*, LIMZOR* and LIRZOR* standard size 1, 2, and option /P are provided with mechanical pressure limiter acting as protection against overpressure. For safety reasons the factory setting of the mechanical pressure limiter is fully unloaded (min pressure). At the first commissioning it must be set at a value lightly higher than the max pressure regulated with the proportional control. For the pressure setting of the mechanical pressure limiter, proceed according to following steps: apply the max reference input signal to the valve s driver. he system pressure will not increase until the mechanical pressure limiter remains unloaded. turn clockwise the adjustment screw until the system pressure will increase up to a stable value corresponding to the pressure setpoint at max reference input signal. turn clockwise the adjustment screw of additional 1 or 2 turns to ensure that the mechanical pressure limiter remains closed during the proportional valve working. adjustment screw locking nut CH CH CH CH protection cap 10 DIAGRAMS (based on mineral oil ISO VG at 0 C) 1 Regulation diagrams LICZO, LIMZO 2 Pressure/flow diagrams LICZO, LIMZO Pressure at port A [% of the max] 1 Regulated pressure at port A [bar] 2 Reference signal [% of max.] Flow [% of the max] 1 Min. pressure/flow diagrams with zero reference signal = LIMZO*1 = LICZO*1 = LIMZO*2 7 = LICZO*2 = LIMZO* = LICZO* 11 = LIMZO* 9 = LICZO* 12 = LIMZO* 10 = LICZO* 1 = LIMZO* Note: for LIMZO* consult our technical office Min. regulated pressure [bar] 7 Min. regulated pressure [bar] Flow [l/min] Flow [l/min] 1 Regulation diagrams LIRZO 11 Min. pressure/flow diagrams with zero reference signal 1 = LIRZO*1 1 = LIRZO*2 17 = LIRZO* 1 = LIRZO* dotted line = / Pressure at port A [% of the max] 1 Differential pressure A Reference signal [% of max.] Flow [l/min] 19 Pressure/flow diagrams LIRZO Regulated pressure at port A [bar] 19 Flow [% of the max]
5 11 DYNAMIC RESPONSE pressure PIDs he valve is provided with PIDs configurations to match different hydraulic conditions. he required PID configuration can be selected before the valve commissioning, through Atos ESW software via US port. Only for RES the PID can be also selected in real time, through PLC via fieldbus. PID Dynamic response example diagrams at side 1 Fast default (1) 2 Standard Smooth Pressure [%] Ref PID1 PID2 PID high stiffness low flow small volume Pressure [%] Ref PID1 PID2 PID low stiffness high flow large volume Open Loop (1) interchangeable with previous ERS version ime Above indications have to be considered as a general guideline, being affected by hydraulic circuit stiffness, working flow and dead volume. he valve's dynamics can be further optimized on the specific application, customizing PIDs parameters. ime 12 PRESSURE RANSDUCER FAILURE In case of pressure transducer failure, the valve's reaction can be configured through Atos ESW software to: cut off the current to solenoid, therefore the regulated pressure will be reduced to minimum value (default setting) automatically switch the pressure control from closed loop (PID1,2,) to open loop (PID), to let the valve to temporarily operate with reduced regulation accuracy 1 ELECRONIC OPIONS Standard driver execution provides on the 7 pin main connector: Power supply 2 VDC must be appropriately stabilized or rectified and filtered; a 2, A fuse time lag is required in series to each driver power supply. Apply at least a mf/0 V capacitance to single phase rectifiers or a 700 mf/0 V capacitance to three phase rectifiers Reference input signal analog differential input with VDC nominal range (pin D,E), proportional to desired valve pressure regulation Monitor output signal analog output signal proportional to the actual valve pressure regulation = VDC nominal range Note: a minimum booting time of 00 ms has be considered from the driver energizing with the 2 VDC power supply before the valve has been ready to operate. During this time the current to the valve coils is switched to zero. 1.1 Option /I It provides 20 ma current reference and monitor signals, instead of the standard VDC. Input signal can be reconfigured via software selecting between voltage and current, within a maximum range of ±10 V or ±20 ma. It is normally used in case of long distance between the machine control unit and the valve or where the reference signal can be affected by electrical noise; the valve functioning is disabled in case of reference signal cable breakage 1.2 Option /Q o enable the driver, supply 2 VDC on pin C referred to pin : Enable input signal allows to enable/disable the current supply to the solenoid, without removing the electrical power supply to the driver; it is used to maintain active the communication and the other driver functions when the valve has to be disabled. his condition does not comply with European Norms EN191 (ex EN91). 1. Option /Z It provides, on the 12 pin main connector, the following additional features: Enable Input Signal o enable the driver, supply 2 VDC on pin referred to pin 2: Enable input signal allows to enable/disable the current supply to the solenoid, without removing the electrical power supply to the driver; it is used to maintain active the communication and the other driver functions when the valve has to be disabled. his condition does not comply with European Norms EN191 (ex EN91). Fault Output Signal Fault output signal indicates fault conditions of the driver (solenoid short circuits/not connected, reference signal cable broken for 20mA input, etc.). Fault presence corresponds to 0 VDC, normal working corresponds to 2 VDC (pin 11 referred to pin 2): Fault status is not affected by the Enable input signal Power supply for driver s logics and communication Separate power supply (pin 9,10) allow to cut solenoid power supply (pin 1,2) while maintaining active diagnostics, US and fieldbus communication. A safety fuse is required in series to each driver power supply: 00 ma fast fuse. 1. Possible combined options: /IQ, /IZ 1 PROGRAMMING OOLS see tech table GS00 US connection Valve's functional parameters and configurations, can be easily set and optimized using Atos ESW programming software connected via US port to the digital driver. For ECSUS/M12 cable fieldbus versions, the software permits valve's parameterization through US port also if the driver is connected to the central machine unit via fieldbus. he software is available in different versions according to the driver s options: ESWASIC support: NP (US) PS (Serial) IR (Infrared) ESWFIELDUS support: C (CANopen) P (PROFIUS DP) EH (EtherCA) EW (POWERLINK) EI (EtherNet/IP) ESW*/PQ support: valves with SP, SF, SL alternated control (e.g. ESWASIC/PQ) WARNING: drivers US port is not isolated! EASUS/OP isolator he use of isolator adapter is highly recommended for PC protection (see table GS00) FS
6 1 ELECRONIC CONNECIONS 1.1 Main connector signals 7 pin standard and /Q option LI*ZORE and LI*ZORES PIN Standard /Q ECHNICAL SPECIFICAIONS NOES A V+ Power supply 2 VDC Rectified and filtered: VRMS = 20 2 VMAX (ripple max 10 % VPP) Input power supply V0 Power supply 0 VDC Gnd power supply C D P_INPU+ Pressure reference input signal: ±10 VDC / ±20 ma maximum range Defaults are 0 10 VDC for standard and 20 ma for /I option Input analog signal Software selectable E INPU Negative reference input signal for P_INPU+ Input analog signal F AGND ENALE P_MONIOR referred to: AGND V0 Analog ground Enable (2 VDC) or disable (0 VDC) the driver, referred to V0 Pressure monitor output signal: 0 10 VDC / 0 20 ma maximum range Defaults are 0 10 VDC for standard and 20 ma for /I option G EARH Internally connected to driver housing Gnd analog signal Input on/off signal Output analog signal Software selectable 1.2 Main connector signals 12 pin /Z option LI*ZORE and LI*ZORES PIN /Z ECHNICAL SPECIFICAIONS NOES 1 V+ Power supply 2 VDC Rectified and filtered: VRMS = 20 2 VMAX (ripple max 10 % VPP) Input power supply 2 V0 Power supply 0 VDC Gnd power supply ENALE Enable (2 VDC) or disable (0 VDC) the driver, referred to V0 Input on/off signal P_INPU+ Pressure reference input signal: ±10 VDC / ±20 ma maximum range Defaults are 0 10 VDC for standard and 20 ma for /I option Input analog signal Software selectable INPU Negative reference input signal for P_INPU+ Input analog signal Pressure monitor output signal: 0 10 VDC / 0 20 ma maximum range, referred to VL0 P_MONIOR Defaults are 0 10 VDC for standard and 20 ma for /I option 7 NC Do not connect NC Do not connect Output analog signal Software selectable 9 VL+ Power supply 2 VDC for driver s logic and communication Input power supply 10 VL0 Power supply 0 VDC for driver s logic and communication Gnd power supply 11 FAUL Fault (0 VDC) or normal working (2 VDC), referred to V0 Output on/off signal PE EARH Internally connected to driver housing 1. Communication connectors LI*ZORE and LI*ZORES US connector M12 pin always present PIN SIGNAL ECHNICAL SPECIFICAION (1) 1 +V_US Power supply 2 ID Identification GND_US Signal zero data line D Data line D+ Data line + C fieldbus execution, connector M12 pin (2) PIN SIGNAL ECHNICAL SPECIFICAION (1) 1 CAN_SHLD Shield 2 NC do not connect CAN_GND Signal zero data line CAN_H us line (high) CAN_L us line (low) P fieldbus execution, connector M12 pin (2) PIN SIGNAL ECHNICAL SPECIFICAION (1) 1 +V ermination supply signal 2 LINEA us line (high) DGND Data line and termination signal zero LINE us line (low) SHIELD Notes: (1) shield connection on connector s housing is recommended 1. Solenoid connection only for LI*ZOR C C EH fieldbus execution, connector M12 pin (2) PIN SIGNAL ECHNICAL SPECIFICAION (1) 1 X+ ransmitter 2 RX+ Receiver X ransmitter RX Receiver Housing SHIELD (2) only for RES execution 1. Pressure transducer connection only for LI*ZOR PIN SIGNAL ECHNICAL SPECIFICAION Connector code PIN SIGNAL ECHNICAL SPECIFICAION Connector code ZE0 1 COIL Power supply 2 COIL Power supply GND Ground V+ Power supply 2 NC Not connected Vout output signal 20 ma NC Not connected NC Not connected 2 1
7 1. Connections layout only for RE and RES REPNP RESPC / RESPP A1 A1 A COIL CONNECION RESPEH 7 PIN MAIN CONNECOR Standard and /Q option (male) C A1 C A1 C C COIL CONNECION 12 PIN MAIN CONNECOR /Z option (male) C C CANopen (male) only for RES Note: Driver connectors front view PROFIUS DP (female) only for RES EtherCA (female input) only for RES EtherCA (female output) only for RES US (female) 1 CONNECORS A1 ZM7P MAIN CONNECOR 7 pin (Metallic) REPNP RESPC / RESPP ZMPF CANopen ZMPM/P PROFIUS DP ZM12P MAIN CONNECOR 12 pin (Metallic) ECSUS/M12 US CALE cable lenght m A ZH7P MAIN CONNECOR 7 pin (Plastic) RESPEH ZMPM/E EtherCA C ZMPM/E EtherCA ZH12P MAIN CONNECOR 12 pin (Plastic) C A ECSUS/M12 US CALE cable lenght m Note: use of metallic connectors is strongly recommended in order to fulfill EMC requirements 17 MODEL CODES OF MAIN CONNECORS AND COMMUNICAION CONNECORS to be ordered separately VALVE VERSION CONNECOR CODE PROECION DEGREE DAA SHEE Power supply R (1) Pressure transducer ZE0 IP K00 RE RES ZM7P (IN) RE/Z RES/Z ZM12P (IN) ZH7P (IN) A A ZH12P (IN) A C CANopen P PROFIUS DP EH EtherCA ZMPF ZMPM/P ZMPM/E ZMPM/E C C IP7 GS20, K00 C (1) Connectors supplied with the valve only for RESP FS
8 1 COVERS INSALLAION DIMENSIONS [mm] Version R without integral driver Mass (kg) LICZOR1 LICZOR2 LICZOR LIMZOR1 LIMZOR2 LIMZOR LIRZOR1 LIRZOR2 LIRZOR LICZO, LIMZO, LIRZO Cartridge Size Standard Option /P SC LI 1, 0,2 2, 0,, 0, ,7 1, 1, 2,9 2 2,7 2,, 1, = Screw for air bleeding: at the first valve commissioning the air eventually trapped inside the solenoid must be bledoff though the screw LICZOR LICZOR LIMZOR LIMZOR LIMZOR LIRZOR LICZOR/P LICZOR/P LIMZOR/P LIMZOR/P LIMZOR/P LIRZOR/P LIMZOR/P LIMZOR Ø20 Ø20 Note: for ISO 7 mounting surface and cavity dimensions, see tech. table P00 COVERS DIMENSIONS [mm] Size A Ø C D Port PpDr Seal Fastening bolts class 12.9 ightening torque Nm 1 x 0 n 2 OR 10 n Mx 2 0 n 2 OR 10 n M12x 12 D G 1/ G 1/ n 2 OR 20 n 2 OR 200 n 2 OR 200 n M1x n M20x70 n M20x C Ø. AxA. 1 Ø20 G / G / n 2 OR 20 n 2 OR 12 n Mx90 n M2x Note: For size 1 cover is not squared, dimensions x
9 1 Versions RE and RES LICZORE*1 LICZORE*2 LICZORE* LICZORE* LICZORE* LIMZORE*1 LIMZORE*2 LIMZORE* LIMZORE* LIMZORE* LIMZORE* LIRZORE*1 LIRZORE*2 LIRZORE* 1 1 LIRZORE* Mass (kg) LICZO, LIMZO, LIRZO LICZORE*/P LICZORE*/P LIMZORE*/P LIMZORE*/P LIMZORE*/P 1 Cartridge Size Standard Option /P SC LI 1, 0,2 2, 0,,1 0,9 11, 12, 1, ,9 2, 2,,7,1,1 1,1 = Screw for air bleeding: at the first valve commissioning the air eventually trapped inside the solenoid must be bledoff though the screw = Space to remove the 7 or 12 pin main connector. For main and communication connectors see section 1, 17 LIRZORE*/P LIMZORE* 1 LIMZORE*/P 1 Ø20 Ø20 Note: for ISO 7 mounting surface and cavity dimensions, see tech. table P00 COVERS DIMENSIONS [mm] Size A Ø C D Port PpDr Seal Fastening bolts class 12.9 ightening torque Nm 1 x 0 n 2 OR 10 n Mx 2 0 n 2 OR 10 n M12x 12 D G 1/ G 1/ n 2 OR 20 n 2 OR 200 n 2 OR 200 n M1x n M20x70 n M20x C Ø. AxA. 1 Ø20 G / G / n 2 OR 20 n 2 OR 12 n Mx90 n M2x Note: For size 1 cover is not squared, dimensions x FS
10 1 Version RESEH LICZORESEH1 LICZORESEH2 LICZORESEH LICZORESEH LICZORESEH LIMZORESEH1 LIMZORESEH2 LIMZORESEH LIRZORESEH1 LIRZORESEH2 LIRZORESEH LIMZORESEH LIRZORESEH LIMZORESEH LIMZORESEH 1 Mass (kg) LICZO, LIMZO, LIRZO LICZORESEH/P LICZORESEH/P Cartridge Size Standard Option /P SC LI 1, 0,2 2,9 0,,2 0,9 11, 12, 1,7 1,1 1,1 2,9 2, 2,,7,2,2 1,1 = Screw for air bleeding: at the first valve commissioning the air eventually trapped inside the solenoid must be bledoff though the screw = Space to remove the 7 or 12 pin main connector. For main and communication connectors see section 1, 17 LIMZORESEH/P LIRZORESEH/P LIMZORESEH/P LIMZORE*/P LIMZORESEH LIMZORESEH/P Ø20 Ø20 Note: for ISO 7 mounting surface and cavity dimensions, see tech. table P00 COVERS DIMENSIONS [mm] Size A Ø C D Port PpDr Seal Fastening bolts class 12.9 ightening torque Nm 1 x 0 n 2 OR 10 n Mx 2 0 n 2 OR 10 n M12x 12 D G 1/ G 1/ n 2 OR 20 n 2 OR 200 n 2 OR 200 n M1x n M20x70 n M20x C Ø. AxA. 1 Ø20 G / G / n 2 OR 20 n 2 OR 12 n Mx90 n M2x Note: For size 1 cover is not squared, dimensions x 0/17
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