Proportional throttle cartridges type LIQZO-L*, 2-way high dynamics, with two position transducers, ISO 7368 sizes from 16 to 100

Transcription

1 Table F00/E Proportional throttle cartridges tpe LIQZOL*, wa high dnamics, with two position transducers, ISO 768 sizes from 6 to Poppet Sleeve Main stage position transducer Pilot valve Integral electronics Communication connector Main connector Pilot valve position transducer Air bleeding Valve size, see section Valve configuration, see section = wa 9 MODEL CODE LIQZO LES PS 5 L / * ** /* Flow control valve L = with two integral position transducers LE = as L plus integral electronics LES = as L plus integral digital electronics Communication interfaces (onl for LES) PS = Serial BC = CANopen BP = PROFIBUS DP LIQZOLESPS6L Series number Spool tpe (regulating characteristics): L = linear Snthetic fluids: WG = waterglcol PE = phosphate ester Electronic options for LE execution see section 6: F =fault signal I =current reference input and monitor ( 0 ma) Q =enable signal Z =enable, fault and monitor signal ( pin connector) Electronic options for LES execution see section 8: I =current reference input and monitor ( 0 ma) Z =double power suppl, enable, fault and monitor signals ( pin connector) LIQZOL* are wa proportional cartridge valves, with double position transducer designed for mounting in mainfold blocks which provide proportional non compensated flow control according to electronic reference signal. The operate in association with electronic drivers, see section, which suppl the proportional valves with proper current to align valve regulation to the reference signal supplied to the electronic driver. The are available in different executions: L, with two integral position transducers, ; LE, LES as L plus analogue (LE) or digital (LES) integral electronics. The regulation is operated b means of a poppet with double piloting area sliding into a sleeve and provided of integral LVDT position transducer. The spool is operated b means of a high performances proportional directional valve in rugged executions to withstand high vibrations and mechanical stresses (tpe DLZO for cartridge dimensions up to size 50 and tpe DLKZOR for cartridge dimensions up to size ) see tab. F80, provided of high precision sleeve and LVDT position transducer for maximum regulating accurac and dnamic response. It is controlled in double closed loop position b means of the LVDT position transducers and. The integral electronics ensures factor presetting, fine functionalit plus valvetovalve interchangeabilit and simplified wiring and installation. Standard 7 pin main connector is used for power suppl, analog input reference and monitor signals. pin connector is used for options /Z. Following communication interfaces are available for the digital LES execution: PS, Serial communication interface. The valve reference signal is provided with analogue commands BC, CANopen interface BP, PROFIBUS DP interface The valves with BC and BP interfaces can be integrated into a fieldbus communication network and thus digitall operated b the machine control unit. Tpical applications: plastic injection and blow moulding, ceramics, punching & nibbling machines, diecasting, foundr and sheet machiner; Mounting surface: ISO 768 Sizes from 6 to ; Max flow up to 700 l/min with differential pressure Δp = 5 bar, see section ; Max pressure = 50 bar. ELECTRONIC DRIVERS Valve model Drivers model Data sheet L EMEL G50 LE ERILE G00 LES ERILES G0 Note: For power suppl and communication connector see section 5 F0

2 YDRAULIC CARACTERISTICS (based on mineral oil ISO VG 6 at 50 C) draulic smbols LIQZOL LIQZOLE* Model Size Max regulated flow [l/min] at Δp = 5 bar at Δp =0 bar Max permissible flow Max pressure [bar] Nominal flow of pilot valve at Δp = 70 bar [l/min] Leakage of pilot valve at P = bar [l/min] Response time 0 % step signal [ms] Pilot volume [cm ] steresis [% of the max flow] Repeatabilit [% of the max flow] Thermal drift ,,6 Note: Above performance data refer to valves coupled with Atos electronic drivers, see section. Recommended piloting pressure is 0 60 bar. In case of long time shutdown of the hdraulic suppl to the pilot valve, the driver has to be switched off to avoid its overheating , , 5 7, ,7 8 9, LIQZOL* , ,5 0,% ± 0,% zero point displacement < % at ΔT = 0 C , , GENERAL NOTES LIQZOL* proportional cartridges are CE marked according to the applicable Directives (e.g. Immunit/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. The electrical signals of the valve (e.g. monitor signals) must not be directl used to activate safet functions, like to switchon/off the machine s safet components, as prescribed b the European standards (Safet requirements of fluid technolog sstems and componentshdraulics, EN98). 5 CONNECTIONS FOR L EXECUTION SOLENOID POWER SUPPLY CONNECTOR PIN Signal description SUPPLY SUPPLY GND PIN POSITION TRANSDUCER CONNECTOR (pilot and main stage) Signal description OUTPUT SIGNAL SUPPLY 5 VDC SUPPLY +5 VDC GND MAIN STAGE POSITION TRANSDUCER CONNECTOR PIN SIZES 6 0 SIZE 50 Signal description PIN Signal description OUTPUT SIGNAL OUTPUT SIGNAL SUPPLY 5 VDC NOT CONNECTED SUPPLY +5 VDC SUPPLY + VDC GND GND 6 ANALOG INTEGRAL DRIVERS LE OPTIONS Standard driver execution provides on the 7 pin main connector: Power suppl VDC must be appropriatel stabilized or rectified and filtered; a,5 A safet fuse is required in series to the driver power suppl Appl at least a 00 μf/0 V capacitance to single phase rectifiers or a 700 μf/0 V capacitance to three phase rectifiers Reference input signal analog differential input with ±0 VDC nominal range (pin D,E), proportional to desired valve spool position Monitor output signal analog output signal proportional to the actual valve s spool position with ±0 VDC nominal range Following options are available to adapt standard execution to special application requirements: 6. Option /F It provides a Fault output signal in place of the Monitor output signal, to indicate fault conditions of the driver (cable interruption of spool transducers or reference signal for /I option): Fault presence corresponds to 0 VDC, normal working corresponds to VDC. 6. Option /I It provides the 0 ma current reference and monitor signals instead of the standard ±0 VDC It is normall used in case of long distance between the machine control unit and the valve or where the reference signal can be affected b electrical noise; the valve functioning is disabled in case of reference signal cable breakage. 6. Option /Q It provides the possibilit to enable or disable the valve functioning without cutting the power suppl (the valve functioning is disabled but the driver current output stage is still active). To enable the driver suppl a VDC on the enable input signal. 6. Option /Z This option includes /F and /Q features, plus the Monitor output signal. When the driver is disabled (0 VDC on Enable signal) Fault output is forced to 0 VDC. 6.5 Possible combined options: /FI and /IZ

3 7 ANALOG INTEGRAL DRIVERS LE MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS MAIN CONNECTOR 7 PIN STANDARD REGULATIONS AND LED (remove the rear cover) PIN OPTION /Z B: B: S: S: LED: SCALE positive bias adjust not working positive scale adjust not working OFF normal working; BIAS DIAGNOSTIC ON fault presence SPOOL POSITION SIGNAL (main stage) B B S S LED 7. ELECTRONIC CONNECTIONS 7 & PIN MAIN CONNECTORS Standard 7pin /Z option pin SIGNAL TECNICAL SPECIFICATIONS NOTES A V+ Power suppl VDC for solenoid power stage and driver logic Input power suppl B V0 Power suppl 0 VDC for solenoid power stage and driver logic Gnd power suppl C () 7 AGND Ground signal zero for MONITOR signal (for standard, /Z option) Gnd analog signal ENABLE Enable ( VDC) or disable (0 VDC) the driver (for /Q and /Z options) Input on/off signal D INPUT+ E 5 INPUT Reference analog differential input: 0 +0 VDC maximum range ( 0 ma for /I option) Input analog signal F () 6 MONITOR Monitor analog output: ±0 VDC maximum range ( 0 ma for /I option) Output analog signal FAULT Fault (0V) or normal working (V) (for /F and /Z options) Output on/off signal 8 R_ENABLE Repeat Enable output repetition of Enable input Output on/off signal 9 NC do not connect Output on/off signal 0 NC do not connect Output on/off signal G PE EART Internall connected to the driver housing Notes: () with /Q option ENABLE signal replaces AGND on pin C; MONITOR signal is reffered to pin B () with /F option FAULT signal replaces MONITOR on pin F. A minimum time of 50ms to ms have be considered between the driver energizing with the VDC power suppl and when the valve is read to operate. During this time the current to the valve coils is switched to zero. 8 DIGITAL INTEGRAL DRIVERS LES OPTIONS Standard driver execution provides on the 7 pin main connector: Power suppl VDC must be appropriatel stabilized or rectified and filtered; a,5 A safet fuse is required in series to each driver power suppl Appl at least a 00 μf/0 V capacitance to single phase rectifiers or a 700 μf/0 V capacitance to three phase rectifiers Reference input signal analog differential input with ±0VDC nominal range (pin D,E), proportional to desired valve spool position Monitor output signal analog output signal proportional to the actual valve s spool position with ±0VDC nominal range Following options are available to adapt standard execution to special application requirements: 8. Option /I It provides 0 ma current reference and monitor signals instead of the standard ±0 V. It is normall used in case of long distance between the machine control unit and the valve or where the reference signal can be affected b electrical noise; the valve functioning is disabled in case of reference signal cable breakage. 8. Option /Z It provides on a pin main connector the above standard features plus: Logic power suppl Option /Z provides separate power suppl for the solenoid (pin, ) and for the digital electronic circuits (pin 9, 0). Cutting solenoid power suppl allows to interrupt the valve functioning but keeping energized the digital electronics thus avoiding fault conditions of the machine fieldbus controller. This condition allows to realize safet sstems in compliance with European Norms EN89 (ex EN95). Enable Input Signal To enable the driver suppl a VDC on pin referred to pin : when the Enable signal is set to zero the valve functioning is disabled (zero current to the solenoid) but the driver current output stage is still active. This condition does not compl with European Norms EN89 (ex EN95). Fault Output Signal Fault output signal indicates fault conditions of the driver (solenoid short circuits/not connected, reference signal cable broken for 0mA input, etc.). Fault presence corresponds to 0 VDC, normal working corresponds to VDC (pin referred to pin ): Fault status is not affected b the Enable input signal 8. Possible combined options: /IZ F0

4 9 DIGITAL INTEGRAL DRIVERS LES MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS MAIN CONNECTOR 7 PIN STANDARD COMMUNICATION CONNECTOR SCALE BIAS RAMPS 5 PIN Serial (PS) or CANopen (BC) PIN OPTION /Z, /SP, /SF and /SL CONNECTOR FOR REMOTE PRESSURE (FORCE) TRANDUCER (for /SP, /SF and /SL) LINEARIZATION FIELDBUS REFERENCE ENANCED DIAGNOSTIC SPOOL POSITION SIGNAL (main stage) 5 PIN reverse ke PROFIBUS DP (BP) 9. ELECTRONIC CONNECTIONS 7 & PIN MAIN CONNECTORS Standard 7pin Note: /Z option pin SIGNAL TECNICAL SPECIFICATIONS NOTES A V+ Power suppl VDC for solenoid power stage (and for driver logic on 7 pin connection) Input power suppl B V0 Power suppl 0 VDC for solenoid power stage (and for driver logic on 7 pin connection) Gnd power suppl ENABLE Enable ( VDC) or disable (0 VDC) the driver Input on/off signal D INPUT+ Reference analog input: 0 +0 VDC maximum range ( 0 ma for /I option) E INPUT standard: differential input; /Z option: common mode INPUT+ referred to AGND Input analog signal C 5 AGND Ground signal zero for MONITOR signal signal zero for INPUT+ signal (onl for /Z option) Gnd analog signal F 6 MONITOR Monitor analog output: ±0 VDC maximum range ( 0 ma for /I option) Output analog signal 7 NC do not connect 8 NC do not connect 9 VL+ Power suppl VDC for driver logic Input power suppl 0 VL0 Power suppl 0 VDC for driver logic Gnd power suppl FAULT Fault (0V) or normal working (V) Output on/off signal G PE EART Internall connected to the driver housing A minimum time of 00 to 500 ms have be considered between the driver energizing with the VDC power suppl and when the valve is read to operate. During this time the current to the valve coils is switched to zero. 9. ELECTRONIC CONNECTIONS 5 PIN COMMUNICATION CONNECTORS PS Serial BC CANopen BP PROFIBUS DP PIN SIGNAL TECNICAL SPECIFICATION SIGNAL TECNICAL SPECIFICATION SIGNAL TECNICAL SPECIFICATION NC do not connect CAN_SLD Shield +5V for termination NC do not connect NC do not connect LINEA Bus line (high) RS_GND Signal zero data line CAN_GND Signal zero data line DGND data line and termination Signal zero RS_RX Valves receiving data line CAN_ Bus line (high) LINEB Bus line (low) 5 RS_TX Valves transmitting data line CAN_L Bus line (low) SIELD 0 SOFTWARE TOOLS The functional parameters of digital valves, as the bias, scale ramp and linearization of the regulation characteristic, can be easil set and optimized with the Atos ESW programming software, available in three different versions according to the driver s communication interfacing: ESWPS (Serial), ESWBC (CANopen) and ESWBP (PROFIBUS DP). A proper connection is required between the PC and the electronic driver communication port: for a more detailed description of software interface, PC requirements, adapters, cables and terminators, please see table G500. Proportional valves with fieldbus communication interface (BC and BP) can be directl managed b the machine control unit; it is required to implement in the machine control the standard communication as described in the user manuals supplied with the relevant programming software. For detailed description of available fieldbus feature, see table G50. On first suppl of the ESW software, it is required to appl for the registration in the Atos download area: Once the registration is completed, the password will be sent b . The software remains active for 0 das from the installation date and then it stops until the user inputs his password. With the password ou can also download, in our personal area, the latest releases of the Atos software, manuals, drivers and configuration files. MAIN CARACTERISTICS OF PROPORTIONAL DIRECTIONAL VALVES Assembl position An position Subplate surface finishing Roughness index, flatness ratio 0,0/ (ISO 0) Ambient temperature 0 C +70 C for L execution; 0 C +60 C for LE and LES executions Fluid draulic oil as per DIN for other fluids see section Recommended viscosit 5 mm /s at 0 C (ISO VG 5 ) Fluid contamination class ISO 8/5 achieved with in line filters of 0 μm and β0 _>75 (recommended) Fluid temperature 0 C +60 C (standard and /WG seals) 0 C +80 C (/PE seals) Coil resistance R at 0 C Max. solenoid current Max. power Insulation class, Ω,6 A 5 Watt (80 ) Due to the occuring surface temperatures of the solenoid coils, the European standards ISO 7 and EN98 must be taken into account Protection degree (CEI EN6059) IP65 for L execution; IP65 67 for LE and LES executions, depending to the connector tpe (see sect. 5 ) Dut factor Continuous rating (ED=%)

5 DIAGRAMS (based on mineral oil ISO VG 6 at 50 C). Regulation diagrams = LIQZOL*6*. Bode diagrams = LIQZOL*6*: 0% 90% = LIQZOL*6*: 50% ± 5% Frequenc [z]. Regulation diagrams = LIQZOL*5* = LIQZOL**. Bode diagrams = LIQZOL*5*: 0% 90% = LIQZOL*5*: 50% ± 5% 5 = LIQZOL**: 0% 90% 6 = LIQZOL**: 50% ± 5% Frequenc [z].5 Regulation diagrams = LIQZOL*0* = LIQZOL*50*.6 Bode diagrams = LIQZOL*0*: 0% 90% = LIQZOL*0*: 50% ± 5% 5 = LIQZOL*50*: 0% 90% 6 = LIQZOL*50*: 50% ± 5% Frequenc [z].7 Regulation diagrams = LIQZOL*6* = LIQZOL*80* = LIQZOL**.8 Bode diagrams = LIQZOL*6*: 0% 90% 5 = LIQZOL*6*: 50% ± 5% 6 = LIQZOL*80*: 0% 90% 7 = LIQZOL*80*: 50% ± 5% 8 = LIQZOL**: 0% 90% 9 = LIQZOL**: 50% ± 5% Frequenc [z] Note: For the valves with digital electronics, the regulation characteristic can be modified b setting the internal software parameters, see tab. G Dnamic response The response times in section and the frequenc responses of the bode diagrams in section.,.,.6,.8, have to be considered as average values. For the valves with digital electronics the dnamics performances can be optimized b setting the internal software parameters. AIR BLEEDING Sizes 6 50 Size 80 C 6 C 6 nr. plugs for air bleeding nr. plugs for air bleeding At the machine commissioning it is advisable to bleed the air from pilot chambers, b loosening the plugs shown in the picture. Operate the valve for few seconds at low pressure and then lock the plugs. F0

6 INSTALLATION DIMENSIONS [mm] Size 6, 5, and 0 LIQZOL SP5 SP5 LIQZOLE LIQZOLES SPZ5P/BP (for BP) SPZ5P (for PS and BC) SP5 SP666 (onl for size 6) Size 50 LIQZOL LIQZOLE LIQZOLES SPZ5P/BP (for BP) SP5 SPZ5P (for PS and BC) SP5 SP666 SPZ7P or SPZM7P Size 6, 80 and LIQZOL LIQZOLE LIQZOLES SPZ5P/BP (for BP) SPZ5P (for PS and BC) SP5 SP5 SP666 SPZ7P or SPZM7P SPZ7P or SPZM7P Size A B C D E F G Fastening bolts Tightening Weight (Kg) class.9 torque L LELES ,5 7 6 N M8x90 5 Nm 5,6 6, ,5 5,5 N Mx 5 Nm 8, 8, N M6x60 00 Nm 0,9, ,5 7,5 N M0x Nm 6,7 7, 50 see drawing N M0x Nm,9, Ø N M0x0 N 8 Mx80 Nm 0 Nm 7,6,6 7, Ø N 8 M0x0 Nm,5, LE* EXECUTION Dotted line = pin connector SPZP for option /Z Mounting surface and cavit: ISO 768 (see table P006) 5 MODEL CODES OF POWER SUPPLY AND COMMUNICATION CONNECTORS (to be ordered separatel) VALVE VERSION L LE/Z LE, LES LES PS, BC LES BP LES /Z Power suppl Transducer CONNECTOR CODE SP666 SP5 SPZ7P SPZM7P SPZP SPZ5P SPZ5P/BP PROTECTION DEGREE IP65 IP65 IP67 IP67 IP65 IP67 IP67 DATA SEET K500 G00, G0, K500 G0, K500 connectors supplied with the valve /08