Information on available spare parts:

www.boschrexroth.com/spc

Inhalt

Table of contents 1

Features 1

Ordering code 2

Symbols 2

Set-up, function, section (valve with integrated sensors) 3

Set-up, function, section (valve for external sensor) 4

Technical data (For applications outside these parameters,

please consult us!) 5

Technical data (For applications outside these parameters,

please consult us!) 6

Control electronics (IAC-P), marking and adjustment elements 7

Control electronics (IAC-P), Electrical connections and alloca-

tion 7

Control electronics (IAC-P), electrical connections and alloca-

tion 8

Control electronics (IAC-P), settings for CANopen and

PROFIBUS-DP 9

Control electronics (IAC-P), block diagram 10

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 11

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 12

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 13

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 14

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 15

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 16

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 17

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40

°C ±5 °C) 18

Dimensions: Size 6 (dimensions in mm) 19

Dimensions: Size 6 (dimensions in mm) 20

Dimensions: Size 10 (dimensions in mm) 21

Dimensions: Size 10 (dimensions in mm) 22

Dimensions 23

Accessories (not included in the scope of delivery) 23

Accessories, port X1 (not included in the scope of delivery) 24

Accessories, sensor connection (not included in the scope of

delivery) 24

Accessories, CAN bus (A coding) (not included in the scope of

delivery) 25

Accessories, PROFIBUS (B coding) (not included in the scope

of delivery) 25

Project planning/maintenance instructions/additional informati-

on 26

Notes 27

1/26

4/3-proportional directional

valve direct operated, with

pQ functionality

Type 4WREQ

Size 6 and 10

Component series 2X

Maximum operating pressure 315 bar

Maximum flow 180 l/min

RE 29050/03.13

Replaces: 12.12

Table of contents

Contents Page

Features 1

Ordering code 2

Symbols 2

Set-up, function, section 3, 4

Technical data 5, 6

Control electronics:

Marking and adjustment elements 7

Electrical connections and allocation 7, 8

Settings for CANopen and PROFIBUS-DP 9

Block diagram 10

Characteristic curves 11 ... 18

Device dimensions 19 ... 22

Accessories 23 ... 25

Project planning/maintenance instructions/

additional information 26

Features

– Direct operated proportional directional valve with integrated

digital control electronics for the pressure, force and flow

control (Integrated Axis Controller IAC-P)

– Completely adjusted unit consisting of valve, pressure

sensor(s) (optional), digital control electronics and field

bus connection

– Operation by means of proportional solenoids with central

thread and detachable coil

– Valve spool position-controlled

– Integrated pressure sensor plate (optional)

– For subplate mounting: Porting pattern according

to ISO 4401

– Analog interfaces for command and actual values

– Design for CAN bus with CANopen protocol DS 408

or PROFIBUS-DP V0/V1

– Quick commissioning via PC and commissioning soft-

ware WIN-PED 6

2/26 Bosch Rexroth AG Hydraulics

Type 4WREQ.Q5-... Type 4WREQ.V...

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4WREQ RE 29050/03.13

Ordering code

With integrated digital electron-

ics and pQ functionality = Q

Size 6 = 6

Size 10 = 10

Control spool symbols

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= Q5-

= V

Rated flow

Size 6

8 l/min = 08

16 l/min = 16

32 l/min = 32

Size 10

25 l/min = 25

50 l/min = 50

75 l/min = 75

Component series 20 to 29 = 2X

(20 to 29: Unchanged installation and

connection dimensions)

Seal material

FKM seals = V

Pressure rating with internal sensors

100 bar

= 4

160 bar

= 5

250 bar

= 8

400 bar

= B

External sensor = 0

Further details in the

plain text

Sensor interface with

external pressure sensor

2 = 4 to 20 mA

3 = 0 to 10 V

4 = 0 to 5 V

9 = 0.5 to 5 V

0 = Without external

sensor interface

Electronics interface

A6 =

±10 VDC

F6 =

4 to 20 mA

Bus interface

C =

CANBus DS 408

P =

PROFIBUS-DP V0/V1

Supply voltage

24 =

Direct voltage 24 V

Position of the pressure sensors

0 =

External sensor

Internal sensor in the channel

A =

B =

C =

A + B

F =

P + A + B

4WRE Q 2X V 24

See flow characteristic curves from page 12.

The selected pressure rating limits the maximum

valve pressure.

Note: Maximum valve pressure is 315 bar.

If internal pressure sensors are used, no external pressure

sensor can be connected.

Symbols

Application Ordering code

Q control F

p control only in A A

p control only in B B

p control in A + B or

∆p control

With command value input "A6", only the sensor interfac-

es "3", "4" or "9" are possible.

With command value input "F6", only the sensor inter-

face "2" is possible.

Hydraulics Bosch Rexroth AG

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RE 29050/03.13 4WREQ

3/26

Set-up

The valve basically consists of:

– Housing (1) and pressure sensor plate (12) with connec-

tion surface

– Control spool (2) with compression springs (3 and 4) and

spring plate (8 and 9)

– Coils (5 and 6) and pole tubes (14 and 15) with cen-

tral thread

– Position transducer (7)

– Integrated pressure sensors (10)

– Integrated digital control electronics IAC-P (11)

Functional description

–

With de-energized solenoids (5 and 6), the control spool (2)

is brought into the central position by compression springs (3

and 4) between the spring plates (8 and 9) (with V spool

valve without spring plate). With V spool valves, the mechan-

ical zero position does not correspond to the hydraulic one.

– Depending on the valve type, the following functions result

(some of them can be combined):

 •Flowcontrol(Q)

 •PressurecontrolinAand/orB(p)

 •Forcecontrol(p)

 •Substitutionalcontrolp/Q

– The command value can alternatively be specified via an

analog interface (X1) or via the field bus interface (X2, X3).

– The actual value signals are provided via an analog

interface (X1) and can additionally be read out via the field

bus (X2, X3).

– The controller parameters are set via the field bus

– Separate supply voltage for bus/controller and power part

(output stage) for safety reasons

Set-up, function, section (valve with integrated sensors)

The digital integrated control electronics enables the following

fault detection:

– Cable break pressure sensor (10)

– Undervoltage

– Cable break position transducer (7)

– Communication errors

– Watchdog

–

Cable break command value inputs (only with current interface)

The following additional functions are available:

– Ramp generator

– Internal command value profile

– Enable function analog/digital

– Error output 24 V

PC program WIN-PED 6

To implement the project planning task and to parameter-

ize the IAC-P valves, the user may use the commissioning

software WIN-PED 6.

– Parameterization

– Diagnosis

– Comfortable data administration on the PC

System requirements

– IBM PC or compatible system

– Windows 2000 or Windows XP

– RAM (recommendation 256 MB)

– 150 MB of available hard disk capacity

Notice

– The "WIN-PED 6" PC program is not included in the scope

of delivery. It can be downloaded on the Internet free of

charge! (see page 26)

Notice!

Due to the design principle, inter-

nal leakage is inherent to the valves,

which may increase over the life cycle.

The tank line must not be allowed to

run empty. With corresponding instal-

lation conditions, a preload valve is

to be installed.

Important notice!

The PG fitting (13) must not be

opened. Mechanical adjustment of the

adjustment nut located below is pro-

hibited and damages the valve!

4/26 Bosch Rexroth AG Hydraulics

4WREQ RE 29050/03.13

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Notice!

Due to the design principle, internal leak-

age is inherent to the valves, which may in-

crease over the life cycle.

The tank line must not be allowed to run

empty. With corresponding installation con-

ditions, a preload valve is to be installed.

Important notice!

The PG fitting (13) must not be opened. Mechanical ad-

justment of the adjustment nut located below is prohibit-

ed and damages the valve!

Set-up

The valve basically consists of:

– Housing (1) with connection surface

– Control spool (2) with compression springs (3 and 4) and

spring plate (8 and 9)

– Coils (5 and 6) and pole tubes (14 and 15) with cen-

tral thread

– Position transducer (7)

– Integrated digital control electronics IAC-P (11)

– Port (X4) for an external pressure sensor (12)

Functional description

–

With de-energized solenoids (5 and 6), the control spool (2)

is brought into the central position by compression springs (3

and 4) between the spring plates (8 and 9) (with V spool

valve without spring plate). With V spool valves, the mechan-

ical zero position does not correspond to the hydraulic one.

– Functions:

 •Flowcontrol(Q)

 •Pressurecontrol(p)

 •Substitutionalcontrolp/Q

– The command value can alternatively be specified via an

analog interface (X1) or via the field bus interface (X2, X3).

– The actual value signals are provided via an analog

interface (X1) and can additionally be read out via the field

bus (X2, X3).

– The controller parameters are set via the field bus

– Separate supply voltage for bus/controller and power part

(output stage) for safety reasons

Set-up, function, section (valve for external sensor)

The digital integrated control electronics enables the following

fault detection:

–

Cable break pressure sensor (depending on sensor interface)

– Undervoltage

– Cable break position transducer (7)

– Communication errors

– Watchdog

–

Cable break command value inputs (only with current interface)

The following additional functions are available:

– Ramp generator

– Internal command value profile

– Enable function analog / digital

– Error output 24 V

PC program WIN-PED 6

To implement the project planning task and to parameter-

ize the IAC-P valves, the user may use the commissioning

software WIN-PED 6.

– Parameterization

– Diagnosis

– Comfortable data administration on the PC

System requirements

– IBM PC or compatible system

– Windows 2000 or Windows XP

– RAM (recommendation 256 MB)

– 150 MB of available hard disk capacity

Notice

– The "WIN-PED 6" PC program is not included in the scope

of delivery. It can be downloaded on the Internet free of

charge! (see page 24)

Hydraulics Bosch Rexroth AG

RE 29050/03.13 4WREQ

5/26

Technical data (For applications outside these parameters, please consult us!)

general

Sizes 6 10

Weight with sandwich plate (3 sensors) kg 3.6 8.5

Weight without sandwich plate kg 2.4 6.5

Installation position Any, preferably horizontal

Ambient temperature range °C –20 to +50

Storage temperature range °C –20 to +80

hydraulic (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Operating pressure

Ports P, A, B

with sensor

100 bar bar Up to 100

160 bar bar Up to 160

250 bar bar Up to 250

400 bar bar Up to 315

Port T with sensor

100 bar bar Up to 100

160 bar bar Up to 160

250 bar bar Up to 210

400 bar bar Up to 210

Rated flow q

V nom

with ∆p = 10 bar l/min 8, 16, 32 25, 50, 75

Maximum admissible flow l/min 80 180

Hydraulic fluid See table below

Hydraulic fluid temperature range °C –20 to +70, preferably +40 to +50

Viscosity range mm

/s 20 to 380, preferably 30 to 46

Maximum admissible degree of contamination of the hydraulic

fluid, cleanliness class according to ISO 4406 (c)

Class 20/18/15

Hysteresis % ≤0.1

Range of inversion % ≤0.05

Response sensitivity % ≤0.05

Zero shift upon change of hydraulic fluid tempera-

ture and operating pressure

%/10 K < 0.15

%/100 bar < 0.1

Hydraulic fluid Classification Suitable sealing materials Standards

Mineral oils and related hydrocarbons HL, HLP NBR, FKM DIN 51524

Flame-resistant – containing water

HFC (Fuchs HYDROTHERM

46M, Petrofer Ultra Safe 620)

NBR ISO 12922

Important information on hydraulic fluids!

– For more information and data on the use of other hydrau-

lic fluids refer to data sheet 90220 or contact us!

– There may be limitations regarding the technical valve

data (temperature, pressure range, life cycle, maintenance

intervals, etc.)!

– The flash point of the process and operating medium used

must be 40 K higher than the maximum solenoid sur-

face temperature.

– Flame-resistant – containing water: Maximum pressure

differential per control edge 175 bar. Pressure pre-loading

at the tank port > 20 % of the pressure differential; other-

wise, increased cavitation.

Life cycle as compared to operation with mineral oil HL,

HLP 50 % to 100 %.

Operating pressure, determined by valve and sensor

The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents

faults and at the same time increases the life cycle of the components.

For the selection of the filters see www.boschrexroth.com/filter

6/26 Bosch Rexroth AG Hydraulics

4WREQ RE 29050/03.13

Technical data (For applications outside these parameters, please consult us!)

electric

Supply voltage Nominal voltage VDC 24

Lower limit value VDC 19.4

Upper limit value VDC 35

Maximum admissible

residual ripple

Vss 2

Current consumption I

max

A 2

Impulse current A 3

Command and actual

value signals

Voltage "A6" U

V ±10

V 0 to 10

Current "F6" I

and I

mA 4 to 20

Converter resolution (command/actual value signals) Bit 10

Duty cycle

% 100

Maximum coil temperature

°C Up to 150

Protection class of the valve according to EN 60529:1991+A1:2000

IP 65 with mounted and locked plug-in connectors

Sensor technology

Measurement range p

bar 100 160 250 400

Overload protection p

max

bar 200 320 500 800

Bursting pressure p bar 400 640 1000 1600

Compensation error

Zero point < 0.25 % of the end value

End value < 0.5 %

Temperature coefficients in the nominal temperature range

Largest TK of the zero point < 0.2 % / 10 K

Largest TK of the range < 0.2 % / 10 K

Characteristic curve deviation < 0.2 %

Hysteresis < 0.1 %

Repeatability < 0.05 %

Long-term drift (1 year) with reference conditions < 0.2 %

Notice!

Information on the environment simulation testing for the ar-

eas EMC (Electromagnetic compatibility), climate and me-

chanical load see RE 29050-U (declaration on environmen-

tal compatibility).

Connect the valve to the supply voltage only when this is

required for the functional sequence of the machine.

Due to the temperatures occurring at the surfaces of the

solenoid coils, the European standards ISO 13732-1 and

EN ISO 4413 need to be adhered to.

With external pressure sensors, the accuracy of the pressure

control depends on the accuracy class of the sensor used.

Hydraulics Bosch Rexroth AG

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RE 29050/03.13 4WREQ

7/26

Control electronics (IAC-P), marking and adjustment elements

No. and/or litz

wire color

Allocation interface A6 Allocation interface F6

1 1 24 VDC (u(t) = 19.4 V to 35 V), I

max

= 1.7 A (for output stage)

2 2

0 V

load zero, reference for pins 1 and 9

3 White

Enable input 9 to 35 V

enable on

4 Yellow ±10 V command value Q R

>50kΩ 4 to 20 mA command value Q R

=100Ω

5 Green Reference for command values Q and p

6 Purple ±10 V actual value Q

(limit load 5 mA)

4 to 20 mA actual value Q

(loadresistancemax.300Ω)

7 Pink 0 to 10 V command value p R

>50kΩ 4 to 20 mA command value p R

=100Ω

8 Red 0 to 10 V actual value p

(limit load 5 mA)

4 to 20 mA actual value p

(loadresistancemax.300Ω)

9 Brown Control voltage, level as pin 1, I

max

= 0.3 A (for signal part and bus)

10 Black 0 V reference potential for pins 3, 6, 8 and 11 (in the valve connected to pin 2)

11 Blue Error output 24 V (19.4 V to 35 V), 200 mA max. load

PE Green-yellow Connected to cooling element and valve housing

Connect shield to PE only on the supply side!

Litz wire colors of the connection lines for mating connector

with cable set (see accessories)

Connector pin assignment X1, 11-pin + PE according to DIN EN 175201-804

1 Material number

2 Production order number

3 Date of production

4 Serial number

5 Type designation, e.g. 4WREQ…-2X/…

6 DIL switch for address and baud rate setting

(position B0 right), see page 10

Control electronics (IAC-P), Electrical connections and allocation

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8/26 Bosch Rexroth AG Hydraulics

4WREQ RE 29050/03.13

Control electronics (IAC-P), electrical connections and allocation

Connector pin assignment for CAN bus "X2"/"X3" (coding A),

M12, 5-pin, pins/sockets

Transmission rate kbit/s 20 to 1000

Bus address 1 to 127

CAN-specific settings:

Baud rate and identifier can be set via the

bus system and/or the DIL switches.

Connector pin assignment for PROFIBUS-DP, "X2"/"X3" (coding B),

M12, 5-pin, socket/pins

Pin Allocation

1 +5 V

2 RxD/TxD-N (A line)

3 D GND

4 RxD/TxD-P (B line)

5 Shield

External pressure sensor port "X4" (coding A), M12, 5-pin, socket

Transmission rate up to 12 MBaud

Bus address 1 to 126

Setting via DIL switches

Pin Allocation of voltage interface Allocation of current interface

1 Supply 24 VDC Supply 24 VDC

2 Signal (0...+5 V) Signal (4...20 mA)

3 Zero 0 V (GND) Zero 0 V (GND)

4 n. c. n. c.

5 n. c. n. c.

The +5 V voltage of the IAC-P is available for an external terminating resistor.

Pin Allocation

1 n. c.

2 n. c.

3 CAN_GND

4 CAN_H

5 CAN_L

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Notice:

We recommend connecting the shields on both sides over the metallic housings of the plug-in connectors.

Using connector pins will affect the shielding effect!

Internal screens are not required.

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Hydraulics Bosch Rexroth AG

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

RE 29050/03.13 4WREQ

9/26

Control electronics (IAC-P), settings for CANopen and PROFIBUS-DP

CANopen

PROFIBUS-DP

Factory setting

B7 B0

B7 B6 B5 B4 B3 B2 B1 B0 HEX Baud rate: B7, B6 Address range: B5 to B0

0 0 0 0 0 0 0 0 00

Standard 20 kBaud

or re-programmed

1 = standard or

re-programmed

0 0 0 0 0 0 0 1 01

20 kBaud 1 to 63to to

0 0 1 1 1 1 1 1 3F

0 1 0 0 0 0 0 0 40 125 kBaud

1 = standard or

re-programmed

0 1 0 0 0 0 0 1 41

125 kBaud 1 to 63to to

0 1 1 1 1 1 1 1 7F

1 0 0 0 0 0 0 0 80 250 kBaud

1 = standard or

re-programmed

1 0 0 0 0 0 0 1 81

250 kBaud 1 to 63to to

1 0 1 1 1 1 1 1 BF

1 1 0 0 0 0 0 0 C0 500 kBaud

1 = standard or

re-programmed

1 1 0 0 0 0 0 1 C1

500 kBaud 1 to 62to to

1 1 1 1 1 1 1 0 FE

1 1 1 1 1 1 1 1 FF 250 kBaud

Monitor modus/

programming mode

1 = fixed

Connection of the bus terminator with the two lower switches

(only with PROFIBUS-DP):

Left figure: Bus terminator not connected

Right figure: Bus terminator connected

(both switches to "ON")

B7 B6 B5 B4 B3 B2 B1 B0 HEX Address range

0 0 0 0 0 0 0 0 00

125 = standard or re-programmed

0 0 0 0 0 0 0 1 01

1 to 126

with parameter channel

to to

0 1 1 1 1 1 1 0 7E

1 0 0 0 0 0 0 0 80

1 to 126

without parameter channel

to to

1 1 1 1 1 1 1 0 FE

1 1 1 1 1 1 1 1 FF Monitor operation address 125

10/26 Bosch Rexroth AG Hydraulics

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



















































4WREQ RE 29050/03.13

Control electronics (IAC-P), block diagram

The protective earthing conductor (PE) is connected to cooling element

and valve housing

Pressure transducer in P, A, B and T depending on ordering code or an

external pressure sensor via the 5-pin M12 mating connector X4

Command value: Positive command value 0 to +10 V (or 12 to 20 mA) at pin 4 and reference potential at pin 5 result in

 flowfromP→AandB→T.

Negative command value 0 to –10 V (or 12 to 4 mA) at pin 4 and reference potential at pin 5 result in

 flowfromP→BandA→T.

Actual value: Positive actual value 0 to +10 V (or 12 to 20 mA) at pin 6 and reference potential at pin 10 result in

 flowfromP→AandB→T.

Negative actual value 0 to –10 V (or 12 to 4 mA) at pin 6 and reference potential at pin 10 result in

 flowfromP→BandA→T.

Connection line: Recommendation: – Up to 25 m line length for pins 1; 2 and PE: 0.75 mm

otherwise 0.25 mm

– Up to 50 m line length for pins 1; 2 and PE: 1.00 mm

External diameter see sketch of mating connector

CAN bus

Command

value q

Command

value p

Actual value q

Actual value p

Enable

Error output

24 V load

supply

24 V signal

supply

GND

Reference for

pins 4; 7

Reference for

pins 3; 6; 8; 11

Protective earth-

ing conductor

PROFIBUS-DP

Pressure sensor plate: Pressure in P

Pressure sensor plate: Pressure in A

Pressure sensor plate: Pressure in B

Pressure sensor plate: Pressure in T

PROFIBUS

controller

CAN

controller

Controller

Output stage supply

Microcontroller

Output

stage off

Actual value

position

Cable break

Oscillator

demodulator

Output stage B

Output stage A

Inductive

positional

transducer

External pressure

Alternative

Hydraulics Bosch Rexroth AG







  





















100

–

100

– 5 – 3 – 1 1 3 5

RE 29050/03.13 4WREQ

11/26

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Pressure signal characteristic curve (Q5 control spool), p

= 100 bar

←

∆p

in%→

Pressure signal characteristic curve (V control spool), p

= 100 bar

Tolerance range of the mechanical

zero position (–6 to +6 %)

←

in%→

←

∆p

in%→

←

in%→

12/26 Bosch Rexroth AG Hydraulics

4WREQ RE 29050/03.13

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Flow in % →

Command value in % →

Tolerance range of the mechanical

zero position

Flow, size 6 with Q5 control spool



 





















Flow in % →

Command value in % →

V08 control spool

V16 control spool

V32 control spool

Flow, size 6 with V control spool

  





















Hydraulics Bosch Rexroth AG





















 







    













RE 29050/03.13 4WREQ

13/26

Flow/load function size 6 with Q5 control spool with maximum valve opening

Flowinl/min→

Valvepressuredifferentialinbar→

P→A/B→T

P→B/A→T

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Maximum admis-

sible flow

Flow in l/min →

Valve pressure differential in bar →

P → A / B →T

P → B / A → T

Flow/load function size 6 with V control spool with maximum valve opening

Maximum admis-

sible flow

14/26 Bosch Rexroth AG Hydraulics

4WREQ RE 29050/03.13

Characteristic curves: Size 6 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)























Signal change in %

Time in ms →

Stroke in % →

Transition function size 6

 





























 

Frequency response size 6 with Q5 control spool, p

= 10 bar

Amplitude ratio in dB →

Frequency in Hz →

Phase angle in ° →

Signal 50 ±5 %

Signal 50 ±12.5 %

Signal 50 ±50 %

 













































































Amplitude ratio in dB →

Frequency in Hz →

Phase angle in ° →

Signal ±10 %

Signal ±25 %

Signal ±100 %

Frequency response size 6 with V control spool, p

= 10 bar

Hydraulics Bosch Rexroth AG

100

–

100

– 5 – 3 – 1 1 3 5





























 

RE 29050/03.13 4WREQ

15/26

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Tolerance range of the mechanical

zero position (–6 to +6 %)

←

∆p

in%→

←

∆p

in%→

←

in%→

←

in%→

Pressure signal characteristic curve (Q5 control spool), p

= 100 bar

Pressure signal characteristic curve (V control spool), p

= 100 bar

16/26 Bosch Rexroth AG Hydraulics



 





















  





















4WREQ RE 29050/03.13

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Flowin%→

Commandvaluein%→

Tolerance range of the mechanical

zero position

Flow, size 10 with Q5 control spool

V25 control spool

V50 control spool

V75 control spool

Flowin%→

Commandvaluein%→

Flow, size 10 with V control spool

Hydraulics Bosch Rexroth AG















  



 









 

 















RE 29050/03.13 4WREQ

17/26

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Flowinl/min→

Valvepressuredifferentialinbar→

P→A/B→T

P→B/A→T

Maximum admis-

sible flow

Flow/load function size 10 with Q5 control spool with maximum valve opening

Flowinl/min→

Valvepressuredifferentialinbar→

P→A/B→T

P→B/A→T

Flow/load function size 10 with V control spool with maximum valve opening

Maximum admis-

sible flow

18/26 Bosch Rexroth AG Hydraulics











   

 









 











































































 

4WREQ RE 29050/03.13

Characteristic curves: Size 10 (measured with HLP46, ϑ

oil

= 40 °C ±5 °C)

Signal change in %

Timeinms→

Strokein%→

Transition function size 10

AmplituderatioindB→

FrequencyinHz→

Phase angle in °

Signal 50 ±5 %

Signal 50 ±12.5 %

Signal 50 ±50 %

Frequency response size 10 with Q5 control spool, p

= 10 bar

 











































































 

Amplitude ratio in dB →

Frequency in Hz →

Phase angle in ° →

Signal ±10 %

Signal ±25 %

Signal ±100 %

Frequency response size 10 with V control spool, p

= 10 bar

Hydraulics Bosch Rexroth AG



 







 







































 



















RE 29050/03.13 4WREQ

19/26

Dimensions: Size 6 (dimensions in mm)

Type 4WREQ with integrated pressure sensors

1 Valve housing

Proportional solenoid "a" with inductive position transducer

3 Proportional solenoid "b"

4 R-ring 9.81 x 1.5 x 1.78 (ports P, A, B, T)

5 Space required to remove the mating connector

6 Integrated digital control electronics

7 Mating connector according to DIN EN 175201-804;

separate order, see page 25

8 Name plate

9 Integrated pressure transducer

10 Processed valve contact surface,

porting pattern according to ISO 4401-03-02-0-05

Deviating from the standard:

– Ports P, A, B, T Ø 8 mm

–

Bore G can be omitted as the valve does not have a pin.





Required surface quality of the

valve contact surface

Subplates and valve mounting screws see page 23

Notice!

The dimensions are nominal dimensions which are

subject to tolerances.

20/26 Bosch Rexroth AG Hydraulics







































































4WREQ RE 29050/03.13

Dimensions: Size 6 (dimensions in mm)

Type 4WREQ for external pressure sensor

1 Valve housing

Proportional solenoid "a" with inductive position transducer

3 Proportional solenoid "b"

4 R-ring 9.81 x 1.5 x 1.78 (ports P, A, B, T)

5 Space required to remove the mating connector

6 Integrated digital control electronics

7 Mating connector according to DIN EN 175201-804;

separate order, see page 25

8 Name plate

9 Processed valve contact surface,

porting pattern according to ISO 4401-03-02-0-05

Deviating from the standard:

– Ports P, A, B, T Ø 8 mm

– Bore G can be omitted as the valve does not have a pin.





Required surface quality of the

valve contact surface

Subplates and valve mounting screws see page 23

Notice!

The dimensions are nominal dimensions which are

subject to tolerances.

Hydraulics Bosch Rexroth AG

































 







































RE 29050/03.13 4WREQ

21/26

Dimensions: Size 10 (dimensions in mm)

Type 4WREQ with integrated pressure sensors

1 Valve housing

Proportional solenoid "a" with inductive position transducer

3 Proportional solenoid "b"

4 R-ring 13.0 x 1.6 x 2.0 (ports P, A, B, T1, T2)

5 Space required to remove the mating connector

6 Integrated digital control electronics

7 Mating connector according to DIN EN 175201-804;

separate order, see page 25

8 Name plate

9 Integrated pressure transducer

10 Processed valve contact surface,

porting pattern according to ISO 4401-05-04-0-05





Required surface quality of the

valve contact surface

Subplates and valve mounting screws see page 23

Notice!

The dimensions are nominal dimensions which are

subject to tolerances.

22/26 Bosch Rexroth AG Hydraulics





























 



































4WREQ RE 29050/03.13

Dimensions: Size 10 (dimensions in mm)

Type 4WREQ for external pressure sensor

1 Valve housing

Proportional solenoid "a" with inductive position transducer

3 Proportional solenoid "b"

4 R-ring 13.0 x 1.6 x 2.0 (ports A, B, P, T, T1)

5 Space required to remove the mating connector

6 Integrated digital control electronics

7 Mating connector according to DIN EN 175201-804;

separate order, see page 25

8 Name plate

9 Processed valve contact surface,

porting pattern according to ISO 4401-05-04-0-05





Required surface quality of the

valve contact surface

Subplates and valve mounting screws see page 23

Notice!

The dimensions are nominal dimensions which are

subject to tolerances.

Hydraulics Bosch Rexroth AG

Hexagon socket head

cap screws

Material number

Size 6 with integrated

pressure sensors

4x ISO 4762 - M5 x 90 - 10.9-flZn-240h-L

Tightening torque M

= 7 Nm ±10 %

R913000222

Size 6 with external

pressure sensor

4x ISO 4762 - M5 x 50 - 10.9-flZn-240h-L

Tightening torque M

= 7 Nm ±10 %

4x ISO 4762 - M5 x 50 - 10.9

Tightening torque M

= 8.9 Nm ±10 %

R913000064

Size 10 with integrated

pressure sensors

4x ISO 4762 - M6 x 80 - 10.9-flZn-240h-L

Tightening torque M

= 12.5 Nm ±10 %

4x ISO 4762 - M6 x 80 - 10.9

Tightening torque M

= 15.5 Nm ±10 %

R913000512

Size 10 with external

pressure sensor

4x ISO 4762 - M6 x 40 - 10.9-flZn-240h-L

Tightening torque M

= 12.5 Nm ±10 %

4x ISO 4762 - M6 x 40 - 10.9

Tightening torque M

= 15.5 Nm ±10 %

R913000058

Notice: The tightening torque of the hexagon socket head cap screws refers to the maximum operating pressure!

Subplates Data sheet

Size 6 45052

Size 10 45054

RE 29050/03.13 4WREQ

23/26

The following is required for the

parameterization with PC:

CANopen PROFIBUS-DP

1 Interface converter (USB)

VT-ZKO-USB/CA-1-1X/V0/0

Mat.no. R901071963

VT-ZKO-USB/P-1-1X/V0/0

Mat.no. R901071962

2 Commissioning software

WIN-PED 6

Download from www.boschrexroth.de\IAC

3 Connection cable, 3 m

D-Sub / M12, coding A

Mat.no. R900751271

D-Sub / M12, coding B

Mat.no. R901078053

Accessories (not included in the scope of delivery)

Dimensions

24/26 Bosch Rexroth AG Hydraulics



























4WREQ RE 29050/03.13

Mating connector for X1

Mating connector according to

DIN EN 175201 - 804 (11-pin + PE),

plastic variant

•Matingconnectorwithoutcable(assemblykit) Material no. R900884671

•Matingconnectorwithcableset2x5m12-pin Material no. R900032356

•Matingconnectorwithcableset2x20m12-pin Material no. R900860399

Accessories, sensor connection (not included in the scope of delivery)

Description View, dimensions Pole pattern, order details

X4 (analog

sensor)

Plug-in connec-

tor, 5-pin, M12,

pin, A coding,

straight line con-

nector in met-

al design

Ø19,6

ca. 61

Mat no.: R901075542

(cable diameter 4 to 6 mm)

Accessories, port X1 (not included in the scope of delivery)

Hydraulics Bosch Rexroth AG

RE 29050/03.13 4WREQ

25/26

Description View, dimensions Pole pattern, order details

Round plug-in

connector, can

be assembled,

5-pin, M12

Straight line con-

nector in met-

al design.

Ø19,6

ca. 61

Mat no.: R901075545

(line diameter 6 to 8 mm)

Round plug-in

connector, can

be assembled,

5-pin, M12

Straight mating

connector in met-

al design.

Ø19,6

ca. 56

Mat no.: R901075550

(line diameter 6 to 8 mm)

M12 protective

cap (only for mat-

ing connector)

Mat no.: R901075563

Accessories, PROFIBUS (B coding) (not included in the scope of delivery)

Accessories, CAN bus (A coding) (not included in the scope of delivery)

Description View, dimensions Pole pattern, order details

Round plug-in

connector, can

be assembled,

5-pin, M12

Straight mating

connector in met-

al design.

Ø19,6

ca. 56

Mat no.: R901076910

(line diameter 6 to 8 mm)

Round plug-in

connector, can

be assembled,

5-pin, M12

Straight line con-

nector in met-

al design.

Ø19,6

ca. 61

Mat no.: R901076906

(line diameter 6 to 8 mm)

M12 cap

Dust protection only

for line connector.

Mat no.: R901075564

26/26 Bosch Rexroth AG Hydraulics

Bosch Rexroth AG

Hydraulics

Zum Eisengießer 1

97816 Lohr am Main, Germany

Phone +49 (0) 93 52 / 18-0

documentation@boschrexroth.de

www.boschrexroth.de

tion set forth in it, are the exclusive property of Bosch Rexroth AG. It

may not be reproduced or given to third parties without its consent.

The data specified above only serve to describe the product. No state-

ments concerning a certain condition or suitability for a certain applica-

tion can be derived from our information. The information given does not

release the user from the obligation of own judgment and verification. It

must be remembered that our products are subject to a natural process

of wear and aging.

4WREQ RE 29050/03.13

Project planning/maintenance instructions/additional information

Product documentation for IAC-P

Product information data sheet 29015-P

Technical data sheet (this data sheet)

Operating manual 29015-B

CAN bus protocol description data sheet 29015-01-Z

PROFIBUS protocol description data sheet 29015-02-Z

General information on the maintenance and commissioning of hydraulic components

Data sheet 07800/07900

Commissioning software WIN-PED 6 and documentation on the Internet: www.boschrexroth.com/IAC

Maintenance instructions:

– The devices have been tested in the factory and are supplied with default settings.

– Only complete devices can be repaired. Repaired devices are returned with default settings. User-specific settings are not

accepted. The machine end-user will have to retransfer the corresponding user parameters.

Notices:

– Connect the valve to the supply voltage only when this is required for the functional sequence of the machine.

– Do not use electrical signals led out via control electronics (e.g. "No error" signal) for switching safety-relevant machine func-

tions (In this connection also refer to EN ISO 13849 "Safety of machinery - Safety-related parts of control systems").

– If electro-magnetic interference must be expected, take appropriate measures to ensure the function (depending on the ap-

plication, e.g. shielding, filtering)!

Hydraulics Bosch Rexroth AG

Bosch Rexroth AG

Hydraulics

Zum Eisengießer 1

97816 Lohr am Main, Germany

Phone +49 (0) 93 52 / 18-0

documentation@boschrexroth.de

www.boschrexroth.de

tion set forth in it, are the exclusive property of Bosch Rexroth AG. It

may not be reproduced or given to third parties without its consent.

The data specified above only serve to describe the product. No state-

ments concerning a certain condition or suitability for a certain applica-

tion can be derived from our information. The information given does not

release the user from the obligation of own judgment and verification. It

must be remembered that our products are subject to a natural process

of wear and aging.

RE 29050/03.13 4WREQ

27/26

Notes

28/26 Bosch Rexroth AG Hydraulics

Bosch Rexroth AG

Hydraulics

Zum Eisengießer 1

97816 Lohr am Main, Germany

Phone +49 (0) 93 52 / 18-0

documentation@boschrexroth.de

www.boschrexroth.de

tion set forth in it, are the exclusive property of Bosch Rexroth AG. It

may not be reproduced or given to third parties without its consent.

The data specified above only serve to describe the product. No state-

ments concerning a certain condition or suitability for a certain applica-

tion can be derived from our information. The information given does not

release the user from the obligation of own judgment and verification. It

must be remembered that our products are subject to a natural process

of wear and aging.

4WREQ RE 29050/03.13