Артикул: RX7030
High-response directional valve, pilot operated, with integrated digital axis controller (IAC Multi Ethernet) 4WRLD
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Description
- Size 10 … 35
- Component series 4X
- Maximum operating pressure 350 bar
- Maximum flow 4700 l/min
- Nominal flow 60 … 1500 l/min
Features
- Open
- Integrated digital axis control functionality (IAC-Multi-Ethernet)
- Bus connection/service interface (Sercos, EtherCAT, EtherNet/IP, PROFINET RT, POWERLINK, VARAN) - Scalable
- 2 configurable analog sensor inputs
- 1 input for linear position measurement system (SSI, 1Vpp or EnDat 2.2) - Precise
- Best-in-class hydraulic controller
- High response sensitivity and little hysteresis - Safe
- Internal safety function (can be used up to category 4/PL e according to EN13849-1)
- CE conformity according to EMC Directive 2014/30/EU
Product description
General information
The pilot-operated IAC Multi Ethernet valve (Integrated Axis Controller based on directional control valves) is a digital directional control valve with integrated axis controller and the following functionalities:
- Position control
- Pressure/force control
- Closed-loop speed control
- Substitutional closed-loop control (position - pressure/force)
- Substitutional control (flow - pressure/force)
- pQ function (flow-controlled)
Among others, the following operating modes are possible:
- Valve direct control
- Drive-controlled position control
- Drive-controlled positioning
- Positioning block operation
- The command values are preset via the Ethernet interface (X7E1 or X7E2) or, alternatively, via the analog/digital interface (XH2)
- The feedback information of the actual value signals to the superior control system is provided optionally either via the Ethernet interface (X7E1 or X7E2) or the analog/digital interface (XH2)
- The controller parameters are set via the Ethernet interface (X7E1 or X7E2)
Set-up
The directional control valve with IAC Multi Ethernet electronics mainly consists of:
- Pilot control valve (1) with control spool and sleeve in servo quality
- Main stage (2) with centering springs and position feedback
- Integrated digital axis controller (3) with:
- analog/digital interface (XH2)
- Ethernet interfaces (X7E1, X7E2)
- analog sensor interfaces (X2M1, X2M2)
- digital sensor interface (X8M)
- Interface for the position transducer of the main stage (X8A)
Function (symbol V, V1- and Q3)
When the control solenoid of the pilot control valve is de-energized, its spring-operated control spool is in the “fail safe” position. The control spool of the main valve is in the spring-centered offset position at approx. 6 % of the
stroke in direction P→B/A→T.
The integrated electronics (OBE) compare the specified command value to the position actual value of the control spool of the main stage. In case of a control deviation, the control solenoid of the pilot control valve is activated and its control spool is adjusted.
The flow which is activated via the control cross-sections at the pilot control valve leads to an adjustment of the control spool of the main valve. The stroke/control cross-section of the main valve is regulated proportionally to the command value. In case of a command value presetting of 0 %, the electronics adjust the control spool of the main valve to central position.
The pilot oil supply in the pilot control valve is either internal via port P or external via port X. The feedback can be internal via port T or external via port Y to the tank.
Switching off the release (symbol V and V1-)
If the supply voltage fails or in case of cable break, the integrated electronics will de-energize the control solenoid, the pilot control spool will move to the fail-safe position and will unload the pilot oil chambers of the main valve. Operated by the spring, the main valve control spool will move to the offset position (approx. 6 % P→B/A→T).
Function (symbol E. and W.)
When the control solenoid of the pilot control valve is de-energized, its spring-operated control spool is in the “fail safe” position. The control spool of the main valve is in spring-centered central position.
The integrated electronics (OBE) compare the specified command value to the position actual value of the control spool of the main stage. In case of a control deviation, the control solenoid of the pilot control valve is activated and its control spool is adjusted.
The flow which is activated via the control cross-sections at the pilot control valve leads to an adjustment of the control spool of the main valve. The stroke/control cross-section of the main valve is regulated proportionally to the command value.
The pilot oil supply in the pilot control valve is either internal via port P or external via port X. The feedback can be internal via port T or external via port Y to the tank.
Switching off the release (symbol E. and W.)
If the supply voltage fails or in case of cable break, the integrated electronics will de-energize the control solenoid, the pilot control spool will move to the fail-safe position and will unload the pilot oil chambers of the main valve. Operated by the spring, the main valve control spool will move to the central position.
Monitoring
The digital control electronics enable comprehensive monitoring functions/error detection including:
- Undervoltage
- Communication error
- Cable break for analog sensor inputs and digital position measurement system
- Short-circuit monitoring for analog/digital outputs
- Monitoring of the microcontroller (watchdog)
- Temperature of the integrated electronics
IndraWorks DS PC program
To implement the project planning task and to parameterize the IAC Multi Ethernet valves, the user may use the IndraWorks DS engineering tool:
- Project planning
- Parameterization
- Commissioning
- Diagnosis
- Comfortable management of all data on a PC
- PC operating systems: Windows XP (SP3), Windows 7-10
Notes:
- Symbol V and V1-:
Pilot-operated 4/3 directional control valves are only functional in the active control loop and do not have a locking basic position when deactivated. Consequently "external isolator valves" are required in many applications and must be taken into account regarding the switch-on/switch-off order.
While the electrical supply voltage is being switched off, the drive may be accelerated for a short time in functional direction P→B.
- Symbol E. and W.:
Pilot-operated 4/3-directional control valves with positive overlap are functional in controlled or regulated axes. The overlap in the de-energized state is approx. 20 % of the control spool stroke.
While the release is being switched off, the drive may be accelerated for a short time in functional direction P→B. (For further details, please refer to operating instructions 29391-B)
Pilot oil supply (schematic illustration)
Size 10
Size 16
Size 25
Size 27
Size 35
| 1 | Plug screw M6 according to DIN 906, wrench size 3 - Pilot oil return |
| 2 | Plug screw M6 according to DIN 906, wrench size 3 - Pilot oil supply |
| 3 | Plug screw M12x1.5 according to DIN 906, SW6 - Pilot oil supply |
| 4 | Plug screw 1/16-27 NPTF, wrench size 4 - Pilot oil return |
| 5 | Plug screw 1/16-27 NPTF, wrench size 4 - Pilot oil supply |
| 6 | Housing cover main stage (position transducer side) |
| Pilot oil supply | |
| External Internal | 2, 3, 5 closed 2, 3, 5 open |
| Pilot oil return | |
| External Internal | 1, 4 closed 1, 4 open |
Version “XY"
External pilot oil supply, external pilot oil return
In this version, the pilot oil is supplied from a separate pilot oil circuit (external). The pilot oil return is not directed into channel T of the main valve, but is separately directed to the tank via port Y (external).
Version “PY”
Internal pilot oil supply, external pilot oil return
With this version, the pilot oil is supplied from channel P of the main valve (internally). The pilot oil return is not directed into channel T of the main valve, but is separately directed to the tank via port Y (external). In the subplate, port X is to be closed.
Version “PT”
Internal pilot oil supply; internal pilot oil return
With this version, the pilot oil is supplied from channel P of the main valve (internally). The pilot oil is directly returned to channel T of the main valve (internally). In the subplate, ports X and Y are to be closed.
Version “XT”
External pilot oil supply, internal pilot oil return
In this version, the pilot oil is supplied from a separate pilot oil circuit (external). The pilot oil is directly returned to channel T of the main valve (internally). In the subplate, port Y is to be closed.
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |||
| 4 | WRL | D | ‒ | 4X | / | / | 24 | D6 | * |
| 01 | 4 main ports | 4 |
| 02 | High-response directional valve, pilot operated | WRL |
| 03 | With integrated digital axis controller | D |
| 04 | Size 10 | 10 |
| Size 16 | 16 | |
| Size 25 | 25 | |
| Size 27 | 27 | |
| Size 35 | 35 | |
| 05 | Symbols; for the possible version, see "Symbols/Circuit diagrams" | |
| Rated flow (Δp = 5 bar/control edge) | ||
| 06 | Size 10 | |
| 60 l/min (only symbol E, E1-, W6-, W8-, V and V1-) | 60 | |
| 100 l/min | 100 | |
| Size 16 | ||
| 200 l/min (only symbol W6- and W8-) | 200 | |
| 250 l/min (only symbol E, E1-, V, V1- and Q3-) | 250 | |
| Size 25 | ||
| 350 l/min (only symbol W6- and W8-) | 350 1) | |
| 400 l/min (only symbol E, E1-, V, V1- and Q3-) | 400 | |
| Size 27 | ||
| 430 l/min (only symbol W6- and W8-) | 430 1) | |
| 600 l/min (only symbol E, E1-, V, V1- and Q3-) | 600 | |
| Size 35 | ||
| 1000 l/min (only symbol E, E1-, V and V1-) | 1000 | |
| 1200 l/min (only symbol W6- and W8-) | 1200 1) | |
| 1500 l/min (only symbol E, E1-, V, V1- and Q3-) | 1500 | |
| Flow characteristic | ||
| 07 | Linear | L |
| Linear with fine control range (only NG10; other sizes on request) | P | |
| Progressive with linear fine control range (only symbol Q3-) | M | |
| 08 | Without overlap jump (only symbols V, V1- and Q3-) | no code |
| With overlap jump (opening point 5% with covered valve; only symbols E, E1-, W6-, W8-) | J | |
| 09 | Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) | 4X |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 10 | NBR seals | M |
| FKM seals | V | |
| Pilot oil flow | ||
| 11 | Pilot oil supply internal, pilot oil return internal | PT |
| Internal pilot oil supply, external pilot oil return | PY | |
| External pilot oil supply, internal pilot oil return | XT | |
| External pilot oil supply, external pilot oil return | XY | |
| 12 | Supply voltage 24 V | 24 |
| Ethernet interface | ||
| 13 | EtherNet/IP | E |
| PROFINET RT | N | |
| Sercos | S | |
| EtherCAT (Profil CANopen) | T | |
| POWERLINK (CANopen profile) | W | |
| VARAN | V | |
| Electrical interface | ||
| 14 | ±10 VDC or 4 … 20 mA | D6 |
| Sensor interfaces | ||
| 15 | 0 … 10 V / 4 … 20 mA / EnDat 2.2 | S |
| 0 … 10 V / 4 … 20 mA / SSI | T | |
| 0 … 10 V / 4 … 20 mA / 1Vpp | U | |
| 16 | Further details in the plain text | * |
| 1) | Higher rated flow upon request |
Technical data
(For applications outside these values, please consult us!)
general
| Type | 4WRLD | ||||||
| Size | 10 | 16 | 25 | 27 | 35 | ||
| Earth | kg | 9 | 12 | 19 | 21 | 80 | |
| Installation position | any | Any | any | ||||
| Ambient temperature range | °C | -20 … +60 | |||||
| Maximum storage time | 1 year (if the storage conditions are observed; refer to the operating instructions 07600-B) | ||||||
| Sine test according to DIN EN 60068-2-6 | 10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes | ||||||
| Noise test according to DIN EN 60068-2-64 | 20 ... 2000 Hz / 10 gRMS / 30 g peak / 30 min / 3 axes | ||||||
| Transport shock according to DIN EN 60068-2-27 | 15 g / 11 ms / 3 axes | ||||||
| Maximum relative humidity 1) | % | 95 | |||||
| Maximum surface temperature 2) | °C | 120 | |||||
| MTTFD values according to EN ISO 13849 3) | Hydraulic (category 1) | Years | 75 | ||||
| Hydraulic and electric (category 3 and 4, without power supply unit) | Years | 70 | |||||
| 1) | No condensation |
| 2) | Individual operation |
| 3) | For further details, please refer to operating instructions 29391-B |
hydraulic
| Size | 10 | 16 | 25 | 27 | 35 | |||
| Maximum operating pressure | Port P | External pilot oil supply | bar | 350 | 270 | 350 | ||
| Anschluss A | bar | 350 | 270 | 350 | ||||
| Port B | bar | 350 | 270 | 350 | ||||
| Port P | Internal pilot oil supply | bar | 280 | 270 | 280 | |||
| Anschluss A | bar | 280 | 270 | 280 | ||||
| Port B | bar | 280 | 270 | 280 | ||||
| Port T | bar | 250 | 210 | 250 | ||||
| Port Y | bar | 250 | 210 | 250 | ||||
| Port X | bar | 280 | 270 | 280 | ||||
| Minimum pilot pressure | Pilot control valve | bar | 10 | |||||
| Maximum flow | l/min | 300 | 800 | 1250 | 1850 | 4700 | ||
| Nominal flow 1) | l/min | 60 100 | 200 250 | 350 400 | 430 600 | 1000 1200 1500 | ||
| Maximum leakage flow 2) | Symbol E, E1- | Main valve | l/min | 0.6 | 0.13 | 0.17 | 0.61 | |
| Main valve + pilot control valve | l/min | 0.14 | 0.28 | 0.42 | 1.01 | |||
| Symbol W6-, W8- | Main valve | l/min | 0.12 | 0.26 | 0.35 | 1.23 | ||
| Main valve + pilot control valve | l/min | 0.2 | 0.41 | < 0.6 | 1.63 | |||
| Maximum zero flow 2) | Symbol V, V1- | Main valve | l/min | 1.7 | 2.3 | 2.8 | 3.3 | 7.2 |
| Main valve + pilot control valve | l/min | 1.85 | 2.6 | 3.2 | 3.7 | 7.65 | ||
| Pilot flow 3) | Symbol E | l/min | 2.4 | 3.5 | 7.5 | 23 | ||
| Symbol W | l/min | 2.4 | 3.5 | 7.5 | 23 | |||
| Symbol V | l/min | 4.5 | 11.5 | 22 | 29 | |||
| Symbol Q3- | l/min | 4.5 | 11.5 | 22 | 29 | |||
| Flow unloading central position 4) | Symbol W6; A – T | l/min | 2.8 | 4 | 6 | 25 | ||
| Symbol W6; B – T | l/min | 2.8 | 4 | 6 | 25 | |||
| Symbol W8; A – T | l/min | 2.8 | 4 | 6 | 25 | |||
| Symbol W8; B – T | l/min | 1.4 | 2 | 3 | 12.5 | |||
| Hydraulic fluid | see table "Hydraulic fluid" | |||||||
| Hydraulic fluid temperature range 5) | °C | -20 … +70 | ||||||
| Viscosity range | Maximum admissible | mm²/s | 20 … 380 | |||||
| Recommended | mm²/s | 30 … 45 | ||||||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 6) | Class 18/16/13 | |||||||
| 1) | Δp = 5 bar/control edge; flow with deviating Δpsee formula. |
| 2) | Inlet pressure 100 bar |
| 3) | At port X and Y with stepped input signal from 0 to 100 % (pilot pressure 100 bar) |
| 4) | Δp = 5 bar/control edge |
| 5) | Flown-through |
| 6) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU (glycol base) | FKM | ISO 12922 | 90222 |
| HFDU (ester base) | FKM | ||||
| HFDR | FKM | ||||
| Containing water | HFC (Fuchs: Hydrotherm 46M, Renosafe 500; | NBR | ISO 12922 | 90223 | |
| Important information on hydraulic fluids:
| |||||
static / dynamic
| Size | 10 | 16 | 25 | 27 | 35 | |||
| Hysteresis | % | < 0.1 | ||||||
| Response sensitivity | % | < 0.05 | ||||||
| Range of inversion | % | < 0.08 | ||||||
| Manufacturing tolerance | % | ≤ 10 | ||||||
| Switch-off behavior 1) | Symbol E, E1-, W6-, W8- | Pilot control valve in “fail-safe” position, main valve moves to spring-centered, overlapped central position | ||||||
| Symbol V, V1- | Pilot control valve in “fail-safe” position, main valve moves to spring-centered “offset position” (approx. 6%, P-B/A-T) | |||||||
| Symbol Q3- | Pilot control valve in “fail-safe” position, main valve moves to spring-centered "offset position" (P blocked, A/B to port T open) | |||||||
| Temperature drift 2) | %/10° C | < 0.25 | ||||||
| Zero point calibration (set in the plant) | % | ± 1 | ||||||
| Actuating time 3) | 0 ... 100 % | Symbol E, E1-, W6-, W8- | ms | 40 | 60 | 90 | ||
| 1) | After electric shut-off |
| 2) | Temperature range 20 °C ... 80 °C |
| 3) | At X = 100 bar |
electrical, integrated electronics (OBE)
| Relative duty cycle 1) | 100 % | ||
| Protection class according to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | ||
| Power supply 2) | Nominal voltage | VDC | 24 |
| Lower limit value | VDC | 18 | |
| Upper limit value | VDC | 36 | |
| Maximum residual ripple 3) | Vpp | 2.5 | |
| Current consumption | Maximum 4) | A | 2.5 |
| Impulse current | A | 4 | |
| Maximum power consumption | W | 40 | |
| AD/DA resolution | Analog inputs | bits | 12 |
| Analog outputs | bits | 12 | |
| Functional earth and screening | See connector pin assignment (CE-compliant installation), "Electrical connection" | ||
| Required fuse protection | AT | 4, time-lag | |
| Adjustment | Calibrated in the plant, see "characteristic curves" | ||
| Conformity | CE according to EMC directive 2014/30/EU tested according EN 61000-6-2 and EN 61000-6-3 | ||
| Parameterization interface | Ethernet | ||
| Scanning time | Pressure and force controller (minimum) | ms | 0.5 |
| Position controller (minimum) | ms | 1 | |
| Booting time | s | 15 | |
| 1) | Continuous operation |
| 2) | Supply voltage is used directly for sensor connections X2M1, X2M2 and X8M (no internal voltage limitation). Voltage limit values must be observed directly at the connector of the valve (observe line length and cable cross-section). |
| 3) | Observe the absolute limit values of the supply voltage. |
| 4) | The maximum current consumption will increase when using the sensor inputs or the switching output according to the external load |
electrical, integrated electronics (OBE)
| Digital inputs XH2 | Quantity |
| optionally up to 2, configurable (analog inputs are no longer required) |
| Low level | V | -3 ... +5 | |
| High level | V | 15 ... UB | |
| Current consumption at high level | mA | < 1 | |
| Reference potential |
| Pin 5 | |
| Digital outputs XH2 | Quantity |
| 1 |
| Low level | V | 0 ... 3 | |
| High level | V | 15 ... UB | |
| Maximum current carrying capacity | A | 1.5 (short-circuit-proof) | |
| Signal delay time | ms | < 2 (depending on set scan time) | |
| Reference potential |
| GND | |
| Analog inputs XH2 | Number (current and voltage input parameterizable) |
| optionally up to 2, configurable (digital inputs are no longer required) |
| AD resolution | bit | 12 | |
| Voltage inputs (differential inputs) | |||
| Measurement range | V | -10 ... +10 | |
| Input resistance | kΩ | 80 + 10 % | |
| Temperature drift | mV/10 K | <14 | |
| Current inputs (reference to AGND) | |||
| Input current | mA | 4 ... 20 (0 ... 20 physically) | |
| Input resistance | Ω | 200, measuring resistance plus FET | |
| Temperature drift | μA/10 K | <25 | |
| Analog outputs XH2 | Number (current and voltage input parameterizable) |
| 1 |
| DA resolution | bit | 14 | |
| Voltage outputs | |||
| Output range | V | -10 ... + 10 (0 ... 10 durch Software) | |
| Minimum load impedance | kΩ | 10 | |
| Temperature drift | mV/10 K | <5 | |
| Current outputs | |||
| Output range | mA | 0 ... 20 (4 … 20 by software) | |
| Maximum load | Ω | 200 | |
| Analog sensors X2M1, X2M2 | Number (current and voltage input parameterizable) |
| 1 pro Stecker |
| Power supply | V | 24 (corresponding to supply voltage applied to XH2) | |
| Maximum supply current | mA | 350 (total X2M1, X2M2, X8M) | |
| AD resolution | bit | 12 | |
| Voltage inputs | |||
| Measurement range | V | 0 ... 10 | |
| Input resistance | kΩ | 80 +10 % | |
| Temperature drift | mV/10 K | <15 | |
| Current inputs (reference to AGND) | |||
| Input current | mA | 4 ... 20 (0 ... 20 physically) | |
| Input resistance | Ω | 200, measuring resistance plus PTC | |
| Temperature drift | μA/10 K | <10 | |
| Digital sensor X8M | Power supply | V | 24 or 5 |
| Maximum supply current at - 24 V | mA | 350 (total X2M1, X2M2, X8M) | |
| Maximum supply current at - 5 V | mA | 250 | |
| SSI-Aufnehmer | |||
| Coding |
| Gray | |
| Data width | Bit | 12 ... 28 | |
| Transfer frequency |
| 80 kHz ... 1 MHz | |
| Line receiver/driver |
| RS485 | |
| Endat encoder | 2.2 | ||
| Line receiver/driver |
| RS485 | |
| Resolution |
| minimum 10 nm and multiple | |
| 1 Vpp encoder | |||
| Transfer frequency | kHz | 250 | |
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure amplification
Flow characteristic "L"
Flow/signal function
Symbol V, V1-
| 1) | Step compensation (opening at 5%) |
Flow/signal function
Symbol E, E1-, W6-, W8-
| 1) | Step compensation (opening at 5%) |
Flow characteristic "P"
Flow/signal function
Symbol V, V1-
| 1) | Step compensation (opening at 5%) |
Flow/signal function
Symbol E, E1-, W6-, W8-
| 1) | Step compensation (opening at 5%) |
Flow characteristic "M"
Symbol Q3, version "100"
Symbol Q3, version "250"
Symbol Q3, version "400"
Symbol Q3, version "600"
Size 10
Transition function with stepped electric input signals
Symbols V and Q3-
- Pilot control valve, port X = 210 bar
- Main valve, port P = 10 bar
Frequency response
Symbols V and Q3-
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 16
Transition function with stepped electric input signals
Symbol V
- Pilot control valve, port X = 210 bar
- Main valve, port P = 10 bar
Frequency response
Symbol V
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 25
Transition function with stepped electric input signals
Symbol V
- Pilot control valve, port X = 210 bar
- Main valve, port P = 10 bar
Frequency response
Symbol V
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 27
Transition function with stepped electric input signals
Symbol V
- Pilot control valve, port X = 210 bar
- Main valve, port P = 10 bar
Frequency response
Symbol V
Flow/load function with maximum valve opening (tolerance ±10 %)
Size 35
Transition function with stepped electric input signals
Symbols V and Q3-
- Pilot control valve, port X = 210 bar
- Main valve, port P = 10 bar
Frequency response
Symbols V and Q3-
Flow/load function with maximum valve opening (tolerance ±10 %)
Symbols/Circuit diagrams
Electrical connection
Dimensions
Project planning information
Information
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