Артикул: RX7578
High-response directional valves, direct operated, with electrical position feedback and integrated electronics (OBE) 4WRPE
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Description
- Size 10
- Component series 3X
- Maximum operating pressure 350 bar
- Nominal flow 50 … 80 l/min
- Digital interface IO-Link for I4.0
Features
- Reliable - proven and robust design
- Energy-efficient - no pilot oil demand, high flows with low pressure differential
- Flexible - suitable for position and velocity control
- Precise - high response sensitivity and little hysteresis
- Safe - shut-off of the second solenoid by means of ISA adapter possible
- IO-Link interface, optional
Product description
4/3 directional valve
The valve type 4WRPE is a direct operated directional control valve with electric position feedback and integrated electronics (OBE).
Set-up
The valve basically consists of:
- Valve housing (1)
- Control spool (2) with compression springs (3.1 and 3.2)
- Control solenoid with position transducer (4) (optional with electronics protection membrane (8))
- Stroke solenoid (7)
- On-board electronics (OBE) (5) with analog (6) or IO-Link interface (optionally with damping plate (9))
Function
The integrated electronics (OBE) compares the specified command value to the position actual value. In case of control deviations, the relevant solenoid will be activated. Due to the changed magnetic force, the control spool (2) is adjusted against the corresponding spring. Stroke/control spool cross-section is controlled proportionally to the command value. In case of a command value presetting of 0 V, the electronics adjust the control spool (2) to central position.
Error detection
In the following cases of error, the electronics will de-energize the control solenoids:
- Falling below the minimum supply voltage ≤ 15 V (restarting ≥ 17.5 V).
- Only at interface "F1":
- Falling below the minimum current command value of 2 mA (includes cable break of the command value line (current loop)).
- Only at interface "L1":
- Enable inactive, communication interruption (watchdog)
- In case of internal IO-Link error
- Only at interface "C6":
- Additionally, release inactive
The control spool (2) is kept in the mechanical central position by the compression springs (3.1 and 3.2) (does - with symbol V - not correspond to the hydraulic central position).
Damping plate "D"
The damping plate (9) reduces the acceleration amplitudes on the on-board electronics (frequencies >300 Hz).
Notice:
Use of the damping plate is not recommended for applications with mainly low-frequency excitation <300 Hz.
Electronics protection membrane "-967"
To prevent condensate formation in the housing of the integrated electronics (OBE), an electronics protection membrane (8) can be used.
Recommended for use outside industry-standard conditions with high ambient air humidity and significant cyclic temperature changes (e.g. outdoors).
4/2 directional valve
The valve type 4WRPE is a direct operated directional control valve with electric position feedback and integrated electronics (OBE).
Set-up
The valve basically consists of:
- Valve housing (1)
- Control spool (2) with compression springs (3)
- Control solenoid with position transducer (4) (optional with electronics protection membrane (8))
- On-board electronics (OBE) (5) with analog (6) or IO-Link interface (optionally with damping plate (9))
Function
The integrated electronics (OBE) compares the specified command value to the position actual value. In case of control deviations, the control solenoid will be activated. Due to the changed magnetic force, the control spool (2) is adjusted against the control spring. Stroke/control spool cross-section is controlled proportionally to the command value. With a positive command value presetting, the valve opens from P to B or A to T. Negative command values lead to no change in the control spool position.
Error detection
In the following cases of error, the electronics will de-energize the control solenoid:
- Falling below the minimum supply voltage ≤ 15 V (restarting ≥ 17.5 V).
- Only at interface "F1":
- Falling below the minimum current command value of 2 mA (includes cable break of the command value line (current loop)).
- Only at interface "L1":
- Enable inactive, communication interruption (watchdog)
- In case of internal IO-Link error
- Only at interface "C6":
- Additionally, release inactive
Damping plate "D"
The damping plate (9) reduces the acceleration amplitudes on the on-board electronics (frequencies >300 Hz).
Notice:
Use of the damping plate is not recommended for applications with mainly low-frequency excitation <300 Hz.
Electronics protection membrane "-967"
To prevent condensate formation in the housing of the integrated electronics (OBE), an electronics protection membrane (8) can be used.
Recommended for use outside industry-standard conditions with high ambient air humidity and significant cyclic temperature changes (e. g. outdoors).
Type code
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | ||||
| 4 | WRP | E | 10 | S | J | ‒ | 3X | / | / | 24 | / | * |
| 01 | 4 main ports | 4 |
| 02 | High-response directional valve, direct operated | WRP |
| 03 | With integrated electronics (OBE) | E |
| 04 | Size 10 | 10 |
| 05 | Symbols; for the possible version, see "Symbols/Circuit diagrams" | E, E1-, W6-, W8-, V-, V1-, EA |
| Rated flow (Δp = 5 bar) | ||
| 06 | 50 l/min (only with symbols E, E1-, V and W6-) | 50 |
| 80 l/min | 80 | |
| Flow characteristic | ||
| 07 | Progressive | S |
| 08 | Overlap jump (opening point 5 command value with symbols E, E1-, EA, W6- and W8-) | J |
| 09 | Component series 30 … 39 (30 … 39: unchanged installation and connection dimensions) | 3X |
| Seal material (observe compatibility of seals with hydraulic fluid used, see "Technical data") | ||
| 10 | NBR seals | M |
| FKM seals | V | |
| 11 | Without damping plate | no code |
| With damping plate | D | |
| 12 | Supply voltage 24 VDC | 24 |
| Interfaces of the control electronics | ||
| 13 | Command value input ±10 V | A1 |
| Command value input 4 ... 20 mA | F1 | |
| IO-Link interface | L1 | |
| Command value ±10 mA, actual value 4 ... 20 mA, release (connector 6+PE) | C6 | |
| 14 | Without electronics protection membrane | no code |
| With electronics protection membrane | -967 | |
| 15 | Further details in the plain text | * |
Technical data
(For applications outside these values, please consult us!)
general
| Type | 4WRPE | ||
| Size | 10 | ||
| Installation position | Any | ||
| Weight | 4/3-way version | kg | 7.6 |
| 4/2-way version | kg | 6 | |
| Ambient temperature range | °C | -20 … +60 | |
| Storage temperature range with UV protection | °C | +10 … +40 | |
| Transport temperature range | °C | -30 … +80 | |
| Maximum storage time 1) | yrs | 1 | |
| Sine test according to DIN EN 60068-2-6 | Without damping plate | 10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes | |
| With damping plate 2) | 10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes | ||
| Noise test according to DIN EN 60068-2-64 | Without damping plate | 20 ... 2000 Hz / 10 gRMS / 30 g peak / 30 min / 3 axes | |
| With damping plate 2) | 20 ... 2000 Hz / 10 gRMS / 30 gpeak/24 h/3 axes | ||
| Transport shock according to DIN EN 60068-2-27 | Without damping plate | 15 g / 11 ms / 3 shocks / 3 axes | |
| With damping plate 2) | 15 g / 11 ms / 3 shocks / 3 axes | ||
| Shock test according to DIN EN 60068-2-27 | With damping plate 2) | 35 g / 6 ms / 1000 shocks / 3 axes | |
| Maximum relative humidity 3) | % | 95 | |
| Maximum solenoid surface temperature 4) | °C | 150 | |
| MTTFD values according to EN ISO 13849 5) | Years | 150 | |
| Conformity | - CE according to EMC directive 2014/30/EU, tested according to EN 61000-6-2 and EN 61000-6-3 - RoHS directive 2015/65/EU - REACH ordinance (EC) no. 1907/2006 | ||
| 1) | If the storage conditions are observed; refer to the operating instructions 07600-B |
| 2) | Not recommended for applications with mainly low-frequency excitation < 300 Hz |
| 3) | No condensation |
| 4) | Individual operation |
| 5) | For further details, see data sheet 08012 |
hydraulic
| Maximum operating pressure | Port P | bar | 350 |
| Anschluss A | bar | 350 | |
| Port B | bar | 350 | |
| Port T | bar | 200 | |
| Hydraulic fluid | see table "Hydraulic fluid" | ||
| Hydraulic fluid temperature range 1) | °C | -20 … +70 | |
| Viscosity range | Maximum admissible | mm²/s | 10 … 800 |
| Recommended | mm²/s | 20 … 100 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) | Class 18/16/13 | ||
| 1) | Flown-through |
| 2) | 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. For the selection of the filters, see www.boschrexroth.com/filter. |
hydraulic
| Nominal flow 1) | l/min | 50 | 80 | |
| Flow unloading central position | Symbol W6; A – T | l/min | 0.7 | |
| Symbol W6; B – T | l/min | 0.7 | ||
| Symbol W8; A – T | l/min | - | 0.7 | |
| Symbol W8; B – T | l/min | - | 0.7 | |
| 1) | With Δp = 5 bar/control edge; flow with deviating Δp see formula. |
| 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 | NBR, 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
| Hysteresis | % | < 0.25 |
| Response sensitivity | % | < 0.05 |
| Range of inversion | % | < 0.05 |
| Manufacturing tolerance | % | < 10 |
| Temperature drift 1) | Zero shift < 0.2 % | |
| Pressure drift | Zero shift < 0.2 % at 100 bar | |
| Zero point calibration (set in the plant) | % | ± 1 |
| 1) | Temperature range 20 °C ... 80 °C |
electrical, integrated electronics (OBE) – Interface "A1" and "F1"
| Power supply | Nominal voltage | VDC | 24 | |
| Terminal A | VDC | min. 19 / max. 36 | ||
| Terminal B | VDC | 0 | ||
| Relative duty cycle 1) | % | 100 | ||
| Fuse protection, external | AT | 3.15 time-lag | ||
| Input, version "A1" | Differential amplifier, Ri = 100 kΩ | |||
| Terminal D (UE) | 4/3-way version | VDC | 0 … ±10 | |
| 4/2-way version | VDC | 0 … 10 | ||
| Terminal E | VDC | 0 | ||
| Input, version "F1" | Load, Rsh = 200 Ω | |||
| Terminal D (ID-E) | mA | 4 … 20 | ||
| Terminal E (ID-E) | Current loop ID-E return | |||
| Maximum voltage for the differential inputs compared to 0 V | D → B; E → B (max. 18 V) | |||
| Test signal, version "A1" | LVDT | |||
| Terminal F (UTest) | 4/3-way version | V | 0 … ±10 | |
| 4/2-way version | % | 0 … 10 | ||
| Terminal C | Reference 0 V | |||
| Test signal, version "F1" | LVDT signal 4 … 20 mA on external load 200 … 500 Ω maximum | |||
| Terminal F (IF-C) | mA | 4 … 20 | ||
| Terminal C (IF-C) | Current loop IF-C return | |||
| Maximum admissible residual ripple | Vpp | 2.5 | ||
| Maximum power consumption | VA | 60 | ||
| Functional earth and screening | see pin assignment under "Electrical connection" (CE-compliant installation) | |||
| Adjustment | Calibrated in the plant, see "characteristic curves" | |||
| Protection class according to EN 60529 | IP65 with mounted and locked plug-in connectors | |||
| 1) | Continuous operation |
electrical, integrated electronics (OBE) – Interface "L1"
| Power supply | Valve amplifiers | VDC | 24 |
| Pin 2 | VDC | min. 18 / max. 30 | |
| Pin 5 | VDC | 0 | |
| IO-Link interface | VDC | 24 | |
| Pin 1 | VDC | min. 18 / max. 30 | |
| Pin 3 | VDC | 0 | |
| Relative duty cycle 1) | % | 100 | |
| Protection class according to EN 60529 | IP65 with mounted and locked plug-in connectors | ||
| Maximum current consumption | Valve amplifiers | A | 3 |
| IO-Link interface | mA | 50 | |
| Maximum admissible residual ripple | Vpp | 1.3 | |
| Minimal process cycle time | ms | 0.6 | |
| Bit rate COM3 | kBit/s | 230.4 | |
| Required master port class | Class B | ||
| Resolution | A/D transformer | 12 (110% valve opening) | |
| D/A transformer | 12 (110% valve opening) | ||
| Functional ground | provide via valve block | ||
| Adjustment | Calibrated in the plant, see "characteristic curves" | ||
| Directive | IO-Link Interface and System Specification Version 1.1.2 | ||
| 1) | Continuous operation |
electrical, integrated electronics (OBE) – Interface "C6"
| Power supply | VDC | 24 | |
| Terminal A | VDC | min. 19 / max. 36 | |
| Terminal B | VDC | 0 | |
| Relative duty cycle 1) | % | 100 | |
| Fuse protection, external | AT | 3.15 time-lag | |
| Inlet | Load, Rsh = 200 Ω | ||
| Terminal D (ID-E) | mA | 0 … 10 | |
| Terminal E (ID-E) | Current loop ID-E return | ||
| Test signal | LVDT signal 4 … 20 mA on external load 200 … 500 Ω maximum | ||
| Terminal F (IF-B) | mA | 4 … 20 | |
| Terminal B (IF-B) | Current loop IF-B return | ||
| Maximum admissible residual ripple | Vpp | 2.5 | |
| Maximum power consumption | VA | 60 | |
| Functional earth and screening | see pin assignment under "Electrical connection" (EMV-compliant installation) | ||
| Adjustment | Calibrated in the plant, see "characteristic curves" | ||
| Protection class according to EN 60529 | IP65 with mounted and locked plug-in connectors | ||
| 1) | Continuous operation |
Notice:
The specified technical data were measured with HLP46 and ϑOil = 40 ±5 °C.
Diagrams/characteristic curves
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure-signal characteristic curve
Symbol V
Flow/signal function (nominal flow 50 l/min at Δp = 5 bar/control edge)
Symbol E
Flow/signal function (nominal flow 50 l/min at Δp = 5 bar/control edge)
Symbol E1-
Flow/signal function (nominal flow 50 l/min at Δp = 5 bar/control edge)
Symbol EA
Flow/signal function (nominal flow 50 l/min at Δp = 5 bar/control edge)
Symbol W6-
Flow/signal function (nominal flow 50 l/min at Δp = 5 bar/control edge)
Symbol V
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol E
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol E1-
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol EA
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol W6-
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol W8-
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol V
Flow/signal function (nominal flow 80 l/min at Δp = 5 bar/control edge)
Symbol V1-
Transition function with stepped electric input signals (4/3 directional design)
Symbol V
Transition function with stepped electric input signals (4/2 directional design)
Symbol EA
Frequency response
Symbol V
Flow/load function with maximum valve opening (tolerance ±10 %) (4/3 directional design)
Symbol V
Flow/load function with maximum valve opening (tolerance ±10 %) (4/3 directional design)
Symbol EA
Symbols/Circuit diagrams
Symbols
| With symbol E1–, V1– and W8–: | |
| P → A: qv max | B → T: qv/2 |
| P → B: qv/2 | A → T: qv max |
Notice:
Representation according to ISO 1219-1.
Hydraulic interim positions are shown by dashes.
Electrical connection
Block diagram / controller function block (4/3 directional design)
Block diagram / controller function block (4/2 directional design)
Notes:
- Electrical signals provided via control electronics (e.g. actual value) must not be used for switching off safety-relevant machine functions.
- The factory setting of the potentiometer must not be changed.
Connector pin assignment "A1", "F1" and "C6"
| Contact | Interface assignment | ||
| "A1" (6+PE) | "F1" (6+PE) | "C6" (6+PE) | |
| A | 24 VDC supply voltage | ||
| B | GND | GND, reference potential actual value/enable | |
| C | Reference potential actual value | Enable input 24 VDC (high ≥11 V; low ≤5 V | |
| D | Command value ±10 V | Command value 4 ... 20 mA | Command value ±10 mA |
| E | Reference potential command value | ||
| F | Actual value ±10 V | Actual value 4 ... 20 mA, load resistance ≈ 330 Ωor digital output (at PLC) 2) | |
| PE | Functional ground (directly connected to the valve housing) | ||
Command value :
- Positive command value (0 ... 10 V or 12 ... 20 mA) at D and reference potential at E cause flow from P → A and B → T.
- Negative command value (0 ... -10 V or 12 ... 4 mA) at D and reference potential at E cause flow from P → B and A → T.
Connection cable (recommendation) :
- Up to 20 m cable length type LiYCY 7 x 0.75 mm2
- Up to 40 m cable length type LiYCY 7 x 1,0 mm2
- EMC-compliant installation :
- Apply screening to both line ends
- Use metal mating connector (see "Accessories")
- Alternatively up to 30 m cable length admissible (not with version with damping plate)
- Apply screening on supply side
- Plastic mating connector (see "Accessories") can be used
Notice:
Mating connectors, separate order, see "Accessories" and datasheet 08006.
Gerätestecker-Belegung „L1“
(M12-5, A-codiert, Class B)
| Pin | Signal | Assignment interface "L1" |
| 1 | L+ | Voltage supply IO-Link |
| 2 | P24 | Voltage supply valve electronics and power part (current consumption 2 A) |
| 3 | L- | Reference potential pin 1 1) |
| 4 | C/Q | Data line IO-Link (SDCI) |
| 5 | N24 | Reference potential pin 2 1) |
| 1) | Pin 3 and 5 are linked with each other in the valve electronics. The reference potentials L- and N24 of the two supply voltages must also be linked with each other on the power supply unit side. |
Notices:
- M12 sensor/actuator connection line, 5-pole; M12 connector/bush, A-coded, without shield, maximum cable length 20 m. Observe the voltage drop over the cable. Wire cross-section at least 0.34 mm2.
- Mating connectors, separate order, see "Accessories"
- Communication and parameter description see data sheet 29400-PA
- With a wire cross-section of 0.34 mm2 (standard line), a maximum cable length of 10 m is possible. For a maximum cable length of 20 m, the cross-section must be doubled.
Dimensions
4/3-way version
Dimensions in mm
 Required surface quality of the valve contact surface |
| 1 | Name plate |
| 2 | Valve housing |
| 3 | Integrated electronics (OBE) |
| 4 | Identical seal rings for ports A, B, P and T (T1) |
| 5 | Control solenoid with position transducer |
| 6 | Machined valve contact surface; Porting pattern according to ISO 4401-05-04-0-05 |
| 7 | Stroke solenoid |
| 8 | ISA adapter, separate order, see data sheet 08006 |
| 9 | Damping plate "D" |
| 10 | Dimension in () for version with damping plate "D" |
| 11 | Electronics protection membrane "-967" |
| 12.1 | Mating connectors for version "A1", "F1" and "C6", separate order, see "Accessories" and datasheet 08006. |
| 12.2 | Mating connectors for version "L1", separate order, see "Accessories" and datasheet 08006. |
| 13 | Space required to remove plug-in connector |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
4/2-way version
Dimensions in mm
 Required surface quality of the valve contact surface |
| 1 | Name plate |
| 2 | Valve housing |
| 3 | Integrated electronics (OBE) |
| 4 | Identical seal rings for ports A, B, P and T (T1) |
| 5 | Control solenoid with position transducer |
| 6 | Machined valve contact surface; Porting pattern according to ISO 4401-05-04-0-05 |
| 9 | Damping plate "D" |
| 10 | Dimension in () for version with damping plate "D" |
| 11 | Electronics protection membrane "-967" |
| 12.1 | Mating connectors for version "A1", "F1" and "C6", separate order, see "Accessories" and datasheet 08006. |
| 12.2 | Mating connectors for version "L1", separate order, see "Accessories" and datasheet 08006. |
| 13 | Space required to remove plug-in connector |
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Valve mounting screws (separate order)
| Quantity | Hexagon socket head cap screws | Material number |
| 4 | ISO 4762 - M6 x 40 - 10.9-CM-Fe-ZnNi-5-Cn-T0-H-B (Friction coefficient μtotal = 0.09 … 0.14) Tightening torque MA = 12.5 Nm ±10 % | R913051533 |
| or | ||
| 4 | ISO 4762 - M6 x 40 - 10.9 Tightening torque MA = 15.5 Nm ±10 % | Not included in the Rexroth delivery range |
| or | ||
| 4 | ASME B18.3 - 1/4-20 UNC x 1 3/4“ - ASTM-A574 Tightening torque MA = 15 Nm ±10 % | Not included in the Rexroth delivery range |
Notice:
The tightening torque of the hexagon socket head cap screws refers to the maximum operating pressure.
Subplates (separate order) with porting pattern according to ISO 4401-05-04-0-05, see data sheet 45100.
Accessories
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
- For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328
Mating connectors for valves with round connector, 6-pole + PE, shielded, with assembled connection line
7P Z31 +
Mating connectors for valves with round connector, 6-pole + PE, shielded, with assembled connection line
7P Z31 +
- For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328
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