Load-sensing control block - Airline Hydraulics · Load-sensing control block 1/52 ... The highest...

1/52Load-sensing control block in sandwich plate design

Type M4-15

Nominal size 15Component series 2XNominal pressure 350 bar (pump side)Nominal pressure 420 bar (actuator side)Maximum flow– Pump side: 300 l/min for central inlet element 200 l/min for lateral inlet element– Actuator side: 200 l/min with load-holding function 200 l/min with pressure compensator 160 l/min with pressure compensator and load-holding function

RE 64283/10.08Replaces: 06.05

Table of contents

Content PageFeatures 2Function 2Cross-section, Symbol 3Technical data 4, 5Modular design 6, 7Ordering code 8 to 11Order example 12 to 14Inlet elements 15 to 18Directional valve elements 19Pressure compensator 19LS pressure limitation 20 to 24Main spool 25, 26Flow 27

Types of operation, cover A 28 to 33Voltage supply and plug-in connectors 33Types of operation cover B 34Secondary valves 35End elements 36 to 39Unit dimensions 40 to 49On-board electronics: Electronic pilot module 50Electronic pilot module: Pin assignment 51Electronic pilot module: Accessories 51, 52

Table of contents 1Features 2Function 2Cross-section 3Symbol 3Technical data 4Modular design: Control block with lateral inlet element 6Ordering code 8Order example closed center with lateral inlet element 12Order example closed center with central inlet element 13Order example closed center with combined inlet element 14Inlet elements 15Central inlet elements 17Directional valve elements: Pressure compensator 19Directional valve elements: LS pressure limitation 20Directional valve elements: Main spool 25Directional valve elements: Flow 27Directional valve elements: Types of operation, cover A – mechanical 28Directional valve elements: Types of operation, cover A – hydraulic 28Directional valve elements: Types of operation, cover A – servohydraulic 28Directional valve elements: Types of operation Cover A – electrohydraulically switchable 29Directional valve elements: Types of operation Cover A – electrohydraulically switchable 30Directional valve elements: Types of operation Cover A – electrohydraulically proportional 31Directional valve elements: Types of operation Cover A – electrohydraulically proportional 32Directional valve elements: Types of operation cover A – on-board electronics 32Directional valve elements: Voltage supply and plug-in connectors 33Directional valve elements: Types of operation cover B 34Directional valve elements: Secondary valves 35End elements 36Diversion plates for central inlet element 39Unit dimensions: Line connections 40Unit dimensions: Lateral inlet elements 41Unit dimensions: Central inlet elements 42Unit dimensions: Directional valve element 43Unit dimensions: Operation 44Unit dimensions: End elements for lateral inlet element 45Unit dimensions: Control block closed center with lateral inlet element 47Unit dimensions: Control block closed center with central inlet element 48Unit dimensions: Control block closed center with combined inlet element 49On-board electronics: Electronic pilot module (EMP2) 50Electronic pilot module: Parameter specifications 50Electronic pilot module: Pin assignment 51Electronic pilot module: Accessories 51

2/52 Bosch Rexroth AG Hydraulics M4-15 RE 64283/10.08

FeaturesSystem

Load pressure-independent flow control –Open center for fixed displacement pump•Closed center for variable displacement pump•

TypeSandwich plate design –

Inlet element•up to 9 directional valve elements•up to 18 directional valve elements with central inlet ele-•ment, thereof max. 6 with servo operationEnd element•

Types of operation –Mechanical (hand lever following)•Hydraulic•Servohydraulic•Electrohydraulic (switching, proportional)•Electrohydraulic with on-board electronics (EPM2)•

FlowLoad pressure-compensated –High repeatability –Low hysteresis –Adjustable via stroke limiter –

Pressure relief functionInlet element –

Pilot operated pressure valves with large nominal width•Directional valve element / actuator ports –

Compact pressure valves with feed function•LS pressure limitation –

Adjustable as per actuator port•External pressure setting as per actuator port possible•Electro-proportional as per section•

Fields of applicationCranes – – Drilling equipmentLarge-scale and telescopic fork lifts – – Truck applicationsRock crushers – Municipal vehicles –Forestry machines – Stationary applications –

Function

Load pressure compensationPressure changes at the actuators or at the pump are com-pensated by the pressure compensator (3). The flow to the actuator remains constant even if the load varies.Flow limitationThe maximum flow can be set mechanically and individually via stroke limiter (6).Pressure relief functionThe LS pressure as per actuator port can be adjusted inter-nally via the LS pressure relief valves (4) or externally via the LS ports MA, MB.Pressure relief/anti-cavitation valves (5) protect the actuator ports A and B against pressure peaks and against external forces.The highest load pressure is signaled to the pump via the LS line and the integrated shuttle valves (7).

Control block M4-15The directional valves are proportional valves according to the load-sensing principle.Actuator controlThe flow direction and level of flow reaching the actuator ports (A or B) is determined at the main spool (2).Pressure reducing valves (9) control the position of the main spool (2). The level of electrical current at the pressure reduc-ing valve determines the level of pilot pressure in the spring chambers (8) and therefore also the stroke of the main spool (P → A; P → B).The pressure difference at the main spool (2), and therefore the flow to the actuator, is maintained constant via the pres-sure compensator (3).

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Cross-section1 Housing 6.1 A side stroke limiter 9.2 Pressure reducing valve

(pilot control valve “b”)2 Main spool 6.2 B side stroke limiter3 Pressure compensator 7 LS shuttle valve 10 Compression spring4 LS pressure relief valves 8 Spring chamber 11 Hand lever5.1 Secondary valve 9.1 Pressure reducing valve

(pilot control valve “a”)12 A side cover

5.2 Plug screw 13 B side cover

Symbol

ConnectionsP PumpA, B ActuatorT TankX Pilot oil supplyY Pilot oil drainLS Load-sensing (LS)MA, MB External LS ports


generalInstallation position AnyType of connection Pipe thread according to ISO 228/1Weight Inlet element Closed center J kg 6.6

Open center P kg 10.0 with priority valve VZ kg 10.7Central inlet element closed center JZ kg 8.5Directional valve element Operation

Hydraulic Electrohydraulic with EPM2kg 7.1 7.5 7.8

Excess weight of handle-operated lever kg 0.6End element kg 5.8

Hydraulic fluid and ambient temperature range ϑ °C –20 to +80Painting Standard priming

hydraulicMax. volume flow at port

P qV, max l/min 300 with central inlet elementl/min 200 with lateral inlet element

A, B qV, max l/min 160 with pressure compensator and load-holding function (model “S”)l/min 200 with pressure compensator, without load-holding function

(model “T”)l/min 200 without pressure compensator (model “C”)

Nominal pressure pnom bar 350Max. operating pressure at port

P p bar 350A, B p bar 420LS p bar 330T p bar 30Y p bar At zero pressure to the tank

Max. pilot pressure at port

X p bar 35a, b p bar 35

Pilot pressure range Hydraulic p bar 8.5 to 22.5Electrohydraulic p bar 6.5 to 17.2

Required control Δp at the control block 1)

Models S; C p bar 18Model T p bar 25

Recommended hydraulic pilot control devices TH6…, characteristic curve 97, see RE 64552LS pressure limitation (adjustment ranges) bar 50 to 149; 150 to 330 (selected in the factory)Hydraulic fluid Mineral oil (HL, HLP) according to DIN 51524, other hy-

draulic fluids, such as HEES (synthetic esters) according to VDMA 24568, as well as hydraulic fluids as specified under RE 90221, at request

Viscosity range Hydraulic ν mm²/s 10 to 380Servohydraulic ν mm²/s 16 to 200 2)

Max. admissible degree of contamination of the hydraulic fluid cleanliness class according to ISO 4406 (c)

Class 20/18/15, for this we recommend a filter with a mini-mumretentionrateofβ≥75

Technical data (Please inquire in case the intended use of unit is outside the given values!)

1) Please observe the design instructions on pilot oil supply at servohydraulic operation on page 18.

1) Between 200 and 380mm²/s reduced maximum quantity.

Hydraulics Bosch Rexroth AGRE 64283/10.08 M4-15 5/52

1) Plug-in connectors are not included in the scope of supply and need to be ordered separately, see page 33.

Note!The technical data were determined at a viscosity of ν = 32 mm²/s (HLP46: 50°C).You can find more information on using the hydraulic prod-ucts of Bosch Rexroth in our publication “Hydraulic valves for mobile applications - General information”, RE 64020-B1

servohydraulicSTDS 0014STDS 0015STDS 0016

See data sheet RE 29617See data sheet RE 29616See data sheet RE 29618

electricalElectrical pilot control valves FTWE 2 K...; see RE 58007 1)

FTDRE 2 K...; see RE 58032 1)

Recommended amplifiers (further control options at request)

RA 1-0/10; 1 axis, see RE 95230RA 2-1/10; 4 to 6 axes, see RE 95230Control devices RC see RE 95200

On-board electronics (EPM2) Data from page 50; see also RE 64518-B

Technical data (Please inquire in case the intended use of unit is outside the given values!)


Modular design: Control block with lateral inlet elementControl blocks of the series M4-15 have a modular structure. They can be combined ideally for the corresponding application.1. Inlet element A: Closed center “VR” with external priority actuators B: Open center “P” C: Closed center “J”2. Directional valve elements2.1 LS pressure limitation2.2 Secondary valves2.3 Operation cover “A” A: Hydraulic operation “H” B: Electrohydraulic operation “W” C: Servohydraulic operation “S” D: Electrohydraulic operation with on-board electronics (EPM2) “CBA”

2.4 Operation cover “B” A: Standard cover “–” B: Mechanical operation “K” with hand lever2.5 Electro-proportional LS pressure limitation3. End element A: with LS unloading “LA” and “LZ” B: with LS port and pilot oil supply “LAY” and “LZY” C: with LS port and pilot oil supply “LAX” and “LZX”

2.4

2.

3.

2.3

1.2.5

A

B

A

B

D

A

B

C

2.2

2.2

2.1

A

B

C

C


2.

1.

2.4

2.

3.

2.1

2.3 3.

2.5

A

B

A

B

C

D

E

C

A

B

2.2

A

B

D

C

Modular design: Control block with central inlet element1. Central inlet element A: Closed center central “JZ” B: Closed center central “VZ” with priority valve2. Directional valve elements2.1 LS pressure limitation2.2 Secondary valves2.3 Operation cover “A” A: Hydraulic operation “H” B: Electrohydraulic operation “W” C: Servohydraulic operation “S” D: Electrohydraulic operation with on-board electronics (EPM2) “CBA’2.4 Operation cover “B” A: Standard cover “–” B: Mechanical operation “K” with hand lever2.5 Electro-proportional LS pressure limitation

3. End element A: Diversion plate with external priority port “LVZ” B: Diversion plate “LU” C: with LS unloading “LA” and “LZ” D: with LS port and pilot oil supply “LAY” and “LZY” E: with LS port and pilot oil supply “LAX” and “LZX”


M4 15 2X

Ordering code

Number of directional valves 1 to 18 1)

Nominal size 15 = 15Component series 20 to 29 = 2X (unchanged installation and connection dimensions)

Closed center

Open center

Lateral = J = PLateral, internal priority actuator external subordinate actuator

= VL

Lateral, external priority actua-tor, internal subordinate actuator

= VR

Central = JZCentral with priority valve = VZCentral for M4-12/15 = JK 2)

Without primary pressure relief valve = Q(not with model P)Without primary pressure relief valve = …(pressure info in bar, 3-digit)Priority valve (only with V.)Static priority valve = ADynamic priority valve = BLS pressure limitation at priority valve (V.) = …(pressure info in bar, 3-digit)

= Preferred program (M4 configurator)1) Max. 9 elements per side, thereof a maximum of 6

with servohydraulic operation2) Consult Technical Sales.

Short code Inlet elements Directional valve elements

1. Spool axis

2. Spool axis

3. Spool axis etc.

Order details see pages 10 and 11

Example for a short code of the M4-15 control block with three directional valve elements:

M4 – 4567 – 2 0 / 3 M4 – 15 J W2 K V 01 –450

Control block No.Component series of unit series (2 X)Revision status of the seriesNumber of directional valve elementsInletOperation A side (prevalent operation)Operation B side (prevalent operation)Sealing materialThreaded connectionSO number if any

Short codeComplete control blocks are defined in accor-dance with the type key. The order text is to determine the technical fea-tures and requirements. From the order text the Rexroth distribution organi-zation derives a short code and a material number.


Ordering codeEnd elements Additional details

Further details in the clear textSO numbers

–038 = Resistant to sea water 6)

–450 = Aluminum-freeS = For safety-relevant applications

Supply voltage 24 V Supply voltage 12 V Supply voltage and plug-in connector 5)

1 3 Junior Timer 2-pin (AMP)8 9 DT04-2P (German)

01 = Connections as pipe thread acc. to ISO 228/1V = FKM seals 4)

M = NBR seals (at request only)

with LS unloading

without LS unloading

External pilot oil supply

Internal pilot oil supply

Internal pilot oil supply for

servohydraulic operation3)

with additional P and T con-

nections

LA = ●LAPT = ● ●LAY = ● ●LAYPT = ● ● ●LAK = ● ●LAX = ● ●LAXPT = ● ● ●LZ = ●LZPT = ● ●LZY = ● ●LZYPT = ● ● ●LZK = ● ●LZX = ● ●LZXPT = ● ● ●

L12Y = Adapter plate for M4-12 directional valve elements with pilot oil supplyL12Q = Adapter plate for M4-12 directional valve elements without pilot oil supply

Only in connection with inlet elements VL, VZ, JZ:LVZ = External priority port (connection option for another LS control block)LU = Diversion plateLUT = Diversion plate with additional T portLUPT = Diversion plate with additional P and T port

01 *

= Preferred program (M4 configurator)3) Notes on pilot oil supply see page 18.4) The block preferably contains FKM, but also NBR seals.

Observe compatibility of seals of the hydraulic fluids used!

5) Information required only for electrohydraulic operation and electroproportional pressure limitation.

6) At request only. Rating by Technical Sales. Note!Plug-in connectors are not included in the scope of supply and need to be ordered separately; see also page 33.


Ordering code

Pressure compensatorwith pressure compensator, with load-holding function = Swith pressure compensator, without load-holding function = Twithout pressure compensator, with load-holding function = CLS valvewith LS pressure relief valve 1)

(pressure information in bar, 3-digit) (no Z possible) = … …

with LS pressure relief plug screw (no Z possible) 1) = Q Q

only with 1 LS pressure relief valve 1) For same pressure setting in A and B = = M …

with LS unloading plug = B B

without LS pressure relief valve (LS pressure relief valve cannot be retrofitted) (no M possible) = Z Z

Housing with measuring ports = MHousing without measuring ports = ZHousing for electro-proportional or switchable pressure limitation 2) = K – 210 bar, decreasing characteristic line 2) = L – 210 bar, rising characteristic curve 2) = J – 350 bar, decreasing characteristic line 2) = R – 350 bar, rising characteristic curve 2) = NSpool symbol

= E = J = Q

= R

= W 3) = Y 3)

Flow in l/min, 3-digit, e.g. 070-070; actuator ports “A” and “B” = … – …Spool with pressure function T, only in connection with E, J or Q spools 3) = … T …

= Preferred program (M4 configurator)1) Only with pressure compensators S and T.2) Detailed information in clear text, see data starting on

page 22; see also datasheet RE 18139.3) At request only. Rating by Technical Sales.

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Ordering code

*

Further details in the clear textSO numbers

–011 = One-sided operation, two spool positionsSecondary valves

H … = Pressure relief/anti-cavitation valve, adjustableE = Feed valve, adjustableQ = Plug screw (secondary valves can be retrofitted)

Operation B side cover– = Standard cover

Hand lever position without hand lever60° 0° -60°

K L M R Hand lever followingN O P X Hand lever, non-following 7)

See notes on page 34 Further versions

Supply voltage 24 V Supply voltage 12 V Supply voltage and plug-in connector 6)

1 3 Junior Timer 2-pin (AMP)8 9 DT04-2P (German)

Operation A side coverM = MechanicalH = HydraulicS = Servohydraulic 3) 5)

Standard

with damping orifice, on both

sideswith measuring

ports, both sides

with damping orifice, with measuring ports,

both sides

Orifice + check valve for hydrau-

lic overrideW2 W8 G2 Electrohydraulically proportionalW4 W5 W6 W7 G4 Electrohydraulically switchable

Standard with position sensor with measuring ports, both sides

Orifice + check valve, both sides Electrohydraulic with digital on-

board electronics (EPM2) (EPM2) 4)CBA CPA 3) CXA CXC

Actu

ator

por

t “A”

Actu

ator

por

t “B”

= Preferred program (M4 configurator)3) At request only. Rating by Technical Sales.4) Further order details according to RE 64815-B.

The delivery comprises daisy chain cabling.5) Not in combination with following hand lever.

6) Information required only for electrohydraulic operation and electroproportional pressure limitation.

7) Only lockable in central position. Note!Plug-in connectors are not included in the scope of supply and need to be ordered separately; see also page 33.

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Order example closed center with lateral inlet elementExample: Triple control block –

Variable displacement pump – qVmax = 200 l/min

Directional valve number, inlet elementClosed center lateral with primary pres- –sure relief valve, set to 250 bar

1. Spool axis with pressure compensator, without load- –holding functionwith 1 pressure relief valve for actuator –port A and B 200 bar,Spool symbol J –Flow in A and B 190 l/min –Types of operation: Hydraulic –Secondary valves: –Pressure relief/anti-cavitation valves for actuator ports A and B 320 bar

2nd and 3rd Spool axis

with pressure compensator, with load- –holding functionwith LS pressure relief valves, –actuator port A 180 bar, actuator port B 120 barSpool symbol E, –Flow in A and B 85 l/min –Types of operation: Hydraulic –Secondary valves: –Pressure relief/anti-cavitation valves for actuator ports A and B 320 bar

End element, ad-ditional informa-tion

with internal LS unloading –FKM seals –Pipe thread connections –

Ordering code:

1. Spool axis

2. Spool axis

3. Spool axis

T = M 200 J 190-190 H – H320 H320

LA V 01

3 M4 15 2X J250

S 180 M 120 E 085-085 H – H320 H320

End element

S 180 M 120 E 085-085 H – H320 H320

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Order example closed center with central inlet elementExample: Double control block –

Variable displacement – pump qVmax = 200 l/min

Directional valve number, end elementDiversion plate –

1. Spool axis without pressure compensator, with load- –holding functionwithout LS pressure relief valves –(cannot be retrofitted)Spool symbol E –Flow in A and B 175 l/min –Types of operation: –Electrohydraulically proportional, 24 VOverriding hand lever (following) –Secondary valve bores closed –

Inlet element Central inlet element with priority valve –(dynamic), set to 250 barPrimary pressure relief valve, set to 300 bar –

2. Spool axis with pressure compensator, with load-hold- –ing functionwith LS pressure relief valves, –actuator port A 180 bar, actuator port B 120 barwith electro proportional pressure limitation, –210 bar (decreasing characteristic line)Spool symbol E –Flow in A and B 90 l/min –Types of operation: digital OBE –Overriding hand lever (following) –Secondary valve bores closed –

End element with internal LS unloading and pilot oil supply –FKM seals –Pipe thread connections –

Ordering code:

1. Spool axis

2. Spool axis

C Z Z Z E 175-175 W2 1 K Q Q

LAY V 01

S 270 L 300 E 090-090 CBA K Q Q

End element

2 M4 15 2X LU

VZ 300 B 250Inlet element

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Order example closed center with combined inlet elementExample: Triple control block –

Variable displacement – pump qVmax = 200 l/min

Directional valve number, end elementDiversion plate –

1. Spool axisM4-15

with pressure compensator, without load- –holding functionwith LS pressure relief valve, – actuator port A 230 bar, actuator port B unloadedSpool symbol E –Flow in A 190 l/min, flow in B –0 l/min, connection closedTypes of operation: digital OBE –Overriding hand lever (following) –Secondary valve bores closed –

Inlet elementM4-12/15

Central inlet element for M4-12/M4-15 –Primary pressure relief valve, set to 280 bar –with integrated pilot oil supply –

2nd and 3rd spool axisM4-12

with pressure compensator, with load-hold- –ing functionwith LS pressure relief valves, – actuator port A 180 bar, actuator port B 120 barSpool symbol E –Flow in A and B 90 l/min –Types of operation: digital OBE –without – secondary valve bores

End elementM4-12

with internal LS unloading –FKM seals –Pipe thread connections –

Ordering code:

1. Spool axis

2. Spool axis

T 230MB E 190-000 CBA K Q Q

LA V 01

S 180M120 E 090-090 CBA – Z Z

End element

3 M4 15 2X LU

JK 280 Y

3. Spool axisS 180M120 E 090-090 CBA – Z Z

Inlet element

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Inlet elementsCharacteristic curves (measured at ν = 41 mm²/s and ϑ = 50°C)

Open centerCirculation pressure P → T

Priority valve

Pressure differential in bar →Fl

ow q

Vs in

l/m

in

(prio

rity

actu

ator

)Flow in l/min →

Circ

ulat

ion

pres

sure

ppin

bar

→

Closed center without primary pressure relief valveOrdering code:

M4 15 2X J Q

Short descriptionFor variable displacement pumps up to 200 l/min –

Closed center with primary pressure relief valveOrdering code:

M4 15 2X J …

Short descriptionFor variable displacement pumps up to 200 l/min –Pressure information – in bar after J… reqired (3-digit)Technical data on primary valve according to –RE 64642, characteristic curve D5

Open center with primary pressure relief valveOrdering code:

M4 15 2X P …

Short descriptionFor fixed displacement pumps up to 200 l/min –Pressure information – in bar after P… reqired (3-digit)Technical data on primary valve according to –RE 64642, characteristic curve D5


Inlet elementsClosed center, internal priority actuator, external subordinate actuator without primary pressure relief valveOrdering code:

M4 15 2X VL Q A …

Short descriptionFor variable displacement pumps up to 200 l/min –Pressure information – in bar after A… required for LS pressure limitation at priority valve (3-digit)

Closed center, internal priority actuator, exter-nal subordinate actuator with primary pressure relief valveOrdering code:

M4 15 2X VL … A …

Short descriptionFor variable displacement pumps up to 200 l/min –Pressure information – in bar after VL ... required for primary pressure relief valve (3-digit)Pressure information – in bar after A… required for LS pressure limitation at priority valve (3-digit)

Closed center, external priority actuator, internal subordinate actuator, without primary pressure relief valveOrdering code:

M4 15 2X VR Q A …


Closed center, external priority actuator, inter-nal subordinate actuator, with primary pres-sure relief valveOrdering code:

M4 15 2X VR … A …

Short descriptionFor variable displacement pumps up to 200 l/min –Pressure information – in bar after VL ... required for primary pressure relief valve (3-digit)Pressure information – in bar after A… required for LS pressure limitation at priority valve (3-digit)

1; 2) See page 18

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Central inlet elementsClosed center, without primary pressure relief valveOrdering code:

M4 15 2X JZ Q

Short descriptionFor variable displacement pumps up to 300 l/min –

Closed center, with primary pressure relief valveOrdering code:

M4 15 2X JZ …

Short descriptionFor variable displacement pumps up to 300 l/min –Pressure information – in bar after JZ ... required for primary pressure relief valve (3-digit)Technical data on primary valve according to –RE 64642, characteristic curve D5

Closed center, with priority valve without primary pressure relief valveOrdering code:

M4 15 2X VZ Q A …


Closed center, with priority valve with primary pressure relief valveOrdering code:

M4 15 2X VZ … A …

Short descriptionFor variable displacement pumps up to 200 l/min –Pressure information – in bar after VR ... required for primary pressure relief valve (3-digit)Pressure information – in bar after A… required for LS pressure limitation at priority valve (3-digit)

1; 2) See page 18

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Inlet elements1) For priority actuators with constant flow model “V … A” is

recommended.2) For dynamic priority consumer loads (e.g. steering) model

“V … B” is recommended.

Notes on the dimensioning of control oil supply with servohydraulic operation

If servohydraulic operation is used in the control block, please note:External pilot oil supply:

p – st = 30 + 2 bar constantq – st = 2 l/min per servohydraulic spool axisRequired and mandatory for inlet element P –

Internal pilot oil supply:6 servohydraulically controlled spool axes maximum possible –No pilot oil supply for external actuators –Δ–– p at the inlet element needs to be 35 bar at leastNo internal pilot oil supply in the inlet element –

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Directional valve elements: Pressure compensator

In the central position of the main spool there is no connec-tion between P and the actuator ports A and B. With this operational state the pressure compensator spool (1) is moved to the left by the pump pressure against the spring (2).When the main spool (3) is operated (= metering orifice), the LS pressure reaches the spring chamber (4) and moves the pressure compensator spool to the right into the control posi-tion. The flow is kept constant even in case of parallel opera-tion of actuators with different load pressures.The pressure compensator “S” boasts a load-holding func-tion. This function is not leak-free.In its standard version it is equipped with one ring (5). The num-ber of the rings inserted depends on the required flow.

Flow control due to individual pressure compensator

Pressure differential in bar →

Flow

in l/

min

→Main spool in central position

Main spool actuated

Pressure compensator spool variants

Ordering code Short description Symbol

Swith pressure compensator –with load-holding function – 1)

max. flow 160 l/min –

Cwithout pressure compensator –with load-holding function – 1)


Twith pressure compensator –without load-holding function – 1)


1) The load-holding function is not leak-free.

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Directional valve elements: LS pressure limitationCharacteristic curvesReduction of the actuator flow due to LS pressure limitationMinimum settings: 50 barMaximum settings: 330 bar

Settings (example)LS-pressure in bar →

Flow

in %

→

With LS pressure relief valve and LS plug screwOrdering code:

S … M Q J …–… W2 1 – Q H…

Short descriptionPressure information in bar for actuator port A – (3-digit)Plug screw for actuator port B –For the model “QMQ”, the LS pressure limitation –can be retrofitted at the directional valve element.The LS pressure can be influenced externally –via the ports MA and MB These ports can also be used as measuring ports.

With LS pressure relief valve and unloading plugOrdering code:

S … M B J …–000 W2 1 – H… H…

Short descriptionPressure information in bar for actuator port A – (3-digit)Unloading plug for actuator port B –E.g. for cylinders with one-sided operation –

Note!Please consult Technical Sales.

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Without LS pressure relief valvesOrdering code:

S Z Z Z J …–… W2 1 – H… H…

Short descriptionLS pressure relief valve cannot be retrofitted –Housing without measuring connections –

Only with 1 LS pressure relief valve and LS plug screwOrdering code:

S = M … J …–… W2 1 – H… H…

Short descriptionOnly 1 LS-DB for same pressure setting in A and –B, pressure information in bar (3-digit)1 measuring port –

Directional valve elements: LS pressure limitation

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Short descriptionDifferentiation between:1. Type KBPS – electrohydraulically proportional2. Type MH2DAD and type KBPS2. Type KKDE – electrohydraulically switchable3. Porting pattern KBPS and cover plate4. Housing KBPS and plug

The exact description of the valve has to be stated as follows in clear text.

KBPS…BA: Decreasing characteristic curve

KBPS…AA: Rising characteristic curve

1. Electro-proportional pressure relief valve type KBPS (see also datasheets RE 18139-04; RE 18139-05)Preferred program:

S … L … J …–… H – H… H… KBPSL8BA

S … J … J …–… H – H… H… KBPSL8AA

S … R … J …–… H – H… H… KBPSR8BA

S … N … J …–… H – H… H… KBPSR8AA

Extension program, e. g.:

S … K … J …–… H – H… H… KBPSH8BA -033

Electro-proportional / hydraulically switchable pressure limitation

2. Pressure cut-off valve type MH2DAD and electro-proportional pressure relief valve, type KBPS (see also datasheets RE 18139-04; RE 18139-05)

S … K … J …–… H – H… H… MH2DAD+KBPSH8BA

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Technical data KBPS (see also RE 18139-04)

electrical standardSupply voltage V 12 DC 24 DCMaximum control current mA max. nominal current 1,760 mA max. nominal current 1,200 mACoil resistance – Cold value with 20°C Ω 2.3 4.8

– max. hot value Ω 3.65 7.2Duty cycle % 100 1)

Maximum coil temperature 2) °C 150Protection class according to VDE 0470-1 (DIN EN 60529), DIN 40050-9

– Model “K4” IP 65 with plug-in connector mounted and locked– Model “C4” IP 66 with plug-in connector mounted and locked

IP 69K with Rexroth plug-in connector (Material no. R901022127)– Model “K40” IP 69K with plug-in connector mounted and locked

1) If using > 2,000 m via NN, we recommend consulting the manufacturer.

Pressure control due to electro-proportional LS pressure limitationPr

essu

re in

the

mai

n co

nnec

tion

1

in b

ar →

Command value in % →

Decreasing characteristic

curve

Rising characteristic

curve

Additional SO-No.(Option:

24V; 0.8A)50 bar KBPSC8BA KBPSC8AA

–033

100bar KBPSF8BA KBPSF8AA150bar KBPSH8BA KBPSH8AA210bar KBPSL8BA (2) KBPSL8AA (4)

250 bar KBPSN8BA KBPSN8AA315 bar KBPSP8BA KBPSP8AA350 bar KBPSR8BA (1) KBPSR8AA (3)

420 bar KBPST8BA KBPST8AA = Preferred program

2) Due to the temperatures occurring at the surfaces of the solenoid coils, the standards ISO 13732-1 and EN 982 need to be adhered to!

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Directional valve elements: LS pressure limitation3. 2/2-directional spool valve type KKDE

S … K … J …–… H – H… H… KKDER8PA

De-energized open De-energized closedKKDER8PA KKDER8NA

KKDE…NA: De-energized closed

KKDE…PA: De-energized open

Technical data KKDE (see also RE 18136-08)

electrical standardType of voltage Direct voltageSupply voltage V 12 DC 24 DCVoltage tolerance and ambient temperature See characteristic curve RE 18136-08 page 5Power consumption Ω 22Duty cycle % See characteristic curve RE 18136-08 page 5Maximum coil temperature 2) °C 150Switching time according to ISO 6403 (solenoid horizontal)

– ON ms ≤–80– OFF ms ≤–150

Maximum number of cycles cy/h 15,000Protection class according to VDE 0470-1 (DIN EN 60529), DIN 40050-9

– Model “K4” IP 65 with plug-in connector mounted and locked– Model “C4” IP 66 with plug-in connector mounted and locked

IP 69K with Rexroth plug-in connector (Material no. R901022127)– Model “K40” IP 69K with plug-in connector mounted and locked

At the electrical connection “K4”, the protective earth-ing conductor (PE ) has to be connected properly.

1) If using > 2,000 m via NN, we recommend consulting the manufacturer.

2) Due to the temperatures occurring at the surfaces of the solenoid coils, the European standards EN 563 and EN 982 need to be adhered to!

Note!Consumer load pressure does not become zero pressure!

Plug

Cover plate

4. Porting pattern KBPS and cover plate

S … K … J …–… H – H… H… A

5. Housing KBPS and plug

S … K … J …–… H – H… H… Q


Directional valve elements: Main spoolMain spool variants

Ordering codeFlow information in l/min

Main application Symbol

E … – … Hydraulic cylinder as actuator

J … – … Hydraulic motors as actuator

Q … – …Application with defined residual opening (A/B → T)Actuator port unloaded in neutral position

R … – … Regeneration function (P, B → A)

W … – … Floating position

Y … – … Floating position

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(E, J, Q) … T … Spool with pressure function

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Directional valve elements: Main spool

Electrohydraulic operation

Hydraulic operation

Servohydraulic opera-tion (at ν = 32 mm²/s)

Typi

cal f

low

in l/

min

→

Spool characteristic curves (symmetric spools)

P → A/B

Pilot pressure in bar →No

min

al fl

ow →

Current in amperes at 24V →

Current in milliamperes →

Current in amperes at 12V →

Command value in digits (steps) →

Digital on-Board-elec-tronics (EPM2)


Flow without washer (pressure compensator Δp = 6 to 9 bar)Flow with 1 washer (pressure compensator Δp = 7.5 to 10 bar)Flow with 2 washers (pressure compensator Δp = 9 to 12 bar)

Directional valve elements: Flow

Symmetric spoolsSpool type Pressure compensator Flow in l/min (spool characteristic curve see page 26)

E, J, QS

160-160 150-150 120-120 080-080 050-050 032-032 023–023140-140 130-130 100-100 070-070 045-045 028-028 020–020120-120 110-110 085-085 060-060 040-040 025-025 017–017

C 200-200 175-175 145-145 110-110 080-080 045-045 028–028T 200-200 190-190 160-160 100-100 065-065 040-040

Asymmetric spoolsSpool type Pressure compensator Flow in l/min

E, J, QS

150-120 120-080 080-050 050-032130-100 100-070 070-045 045-028110-085 085-060 060-040 040-025

C 175-145 145-110 110-080 080-045T 190-160 160-100 100-065 065-040

Floating position and regeneration spoolSpool type Pressure compensator Flow in l/min (more at request)

W S 065–065Y S 045-045R S 130–100

Note!Please consult Technical Sales.

Example:Spool type J –Pressure compensator S –Command value: – qActuator = 140 l/min

Spool type Pressure compensator Flow in l/min

E, J, Q S150–150130–130110–110

Solution:→ 130 liters spool + 2 washers = 150 l/min→ Set 140 liters via stroke limiter.

Note!Position directional valve elements with maximum flow as close as possible to the inlet element.

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Directional valve elements: Types of operation, cover A – mechanicalMechanical (encapsulated)Ordering code:

S … M … J …–… M K H… H…

Short descriptionMechanical operation of the main spool. In case –of non-operation centering in central position by springsAll handle-operated lever position options are –available (K, L, M etc.) comp. also type key on page 11

1) Following hand lever2) Non-following hand lever

HydraulicOrdering code:

S … M … J …–… H – H… H…

Short descriptionRecommended hydraulic pilot control devices: –Type TH6 according to RE 64555

Directional valve elements: Types of operation, cover A – hydraulic

ServohydraulicOrdering code:

S Z Z Z J …–… S – Q Q

Short descriptionVoltage: 7VDC min –Type of current: Direct current –Nominal current: – ±20 mAMax. current: – ±25 mASTDS 0014; see RE 29617-B2 –STDS 0015; see RE 29616-B2 –STDS 0016; see RE 29618-B2 –

Note!Rating by Technical Sales.

Directional valve elements: Types of operation, cover A – servohydraulic

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Electrohydraulically switchableOrdering code:

S … M … J …–… W4 1 – H… H…

Short descriptionOn/off valves, type FTWE 2 K according to –RE 58007

Directional valve elements: Types of operation Cover A – electrohydraulically switchable

Electrohydraulically switchable with measuring ports on both sidesOrdering code:

S … M … J …–… W6 3 – H… H…


Electrohydraulically switchable with damping orifice on both sidesOrdering code:

S … M … J …–… W5 3 – H… H…


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Directional valve elements: Types of operation Cover A – electrohydraulically switchable

Electrohydraulically switchable with orifice and check valve for hydraulic overrideOrdering code:

S … M … J …–… G4 3 – H… H…


Electrohydraulically switchable with damping orifice, with measuring ports on both sidesOrdering code:

S … M … J …–… W7 1 – H… H…


Technical data FTWE 2K (see also RE 58007)

electrical Type of voltage Direct voltageNominal voltage V 12 24Powerconsumptionat20℃ W 14.4 14.4Coil resistance R20 Ω 10 40Duty cycle % 100Switching time ton ms ≤–20

toff ms ≤–30Protection class according to DIN 40050-9

– Solenoid IP 69K– Electric connection C4

K40IP 69K 1)

IP 69K 1)

Switching frequency Hz 5

1) Recommended plug-in connector see page 33.

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Electrohydraulically proportional with hand lever (encapsulated)Ordering code:

S … M … J …–… W2 1 K H… H…

Short descriptionProportional pressure reducing valve –type FTDRE 2 K according to RE 58032

Safety notes!Following hand lever – 1): Electrohydraulic operation can be overruled by mechanical operation. The hand lever is con-nected directly with the main spool and follows through the spool movement in case of electro-hydraulic operation.Non-following hand lever – 2): The hand lever is connected to the main spool by means of a coupling. When the main spool is in central position, the hand lever can be de-tented. Thus, it does not follow the movement of the spool in case of electrohydraulic operation.

Directional valve elements: Types of operation Cover A – electrohydraulically proportional

Electrohydraulically proportional with measur-ing ports on both sidesOrdering code:

S … M … J …–… W8 9 – H… H…

Short descriptionProportional pressure reducing valve –type FTDRE 2 K according to RE 58032

Electrohydraulically proportional with damping orifice and check valveOrdering code:

S … M … J …–… G2 1 – H… H…

Short descriptionProportional pressure reducing valve –Type FTDRE 2 K according to RE 58032

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Directional valve elements: Types of operation Cover A – electrohydraulically proportionalTechnical data FTDRE 2K (see also RE 58032)

electricalType of voltage Direct voltageNominal voltage of the amplifier V 12 24Maximum control current A 1.8 0.8Coilresistance(20℃) Ω 2.4 12Duty cycle (with amplifier) % 100Electric connection See order detailsProtection class according to DIN 40050-9

– Solenoid IP 69K– Electric connection C4

K40IP 69K 1)

IP 69K 1)

PWM frequency (recommended) 1) Hz 150

1) The PWM frequency is to be optimized depending on the application. In this regard, observe the temperature range of the application.

Recommended plug-in connector see page 33.

Directional valve elements: Types of operation cover A – on-board electronics

Electronic pilot moduleOrdering code:

S … M … J …–… CBA – H… H…

Short descriptionDigital interface, standard –See RE 64815-B –

Electronic pilot module with position sensorOrdering code:

S … M … J …–… CPA – Q Q

Short descriptionDigital interface with directional sensor, –See RE 64815-B –

Note!At request only. Rating by Technical Sales.


All control blocks with EPM2 are supplied with mounted daisy chain cabling and terminal resistance connector. The terminal resistance is mounted to the last section of the block.Recommended cable for connection to the machine electronics:Material number: R917c02724

Directional valve elements: Types of operation cover A – on-board electronicsOpen plug for connec-tion to the machine electronics

Daisy chain Plug with terminal resistance

End elementInlet

element

Directional valve elements: Voltage supply and plug-in connectors

Connector typeSupply voltage Junior Timer

2-pin (AMP)DT04-2P

(Deutsch)24 V 1 812 V 3 9

This information is required only in case of electrohydraulic operation and / or electroproportional pressure limitation.

Recommended plug-in connector for connector type Junior Timer 2-pin (AMP)Plug-in connector for FTDRE… and FTWE… protection class IP 69KMaterial number: R900313533For litz wire cross-sections of 0.5 to 1 mm² and for an isola-tion diameter of the individual seals of 1.2 to 2.1 mmMaterial number: R901022127For litz wire cross-sections of 0.5 to 1 mm² and for an isola-tion diameter of the individual seals of 2.2 to 3 mm

Recommended plug-in connector for Junior Timer 2-pin (AMP)

Note!Plug-in connectors are not included in the scope of supply and need to be ordered separately.

60˚ = K, N

0˚ = L, O

-60˚ = M, P

0˚ = F, H

30˚ = B1, G1

-30˚ = D1, J1

1

2

3

60˚ = B, G

-60˚ = D, J


Directional valve elements: Types of operation cover BMechanical - encapsulated operation

Operating force (at the hand lever):Mechanical < 20 N –Hydraulic, overriding hand lever < 50 N –Electrohydraulic, overriding hand lever < 70 N –

Further handle-operated lever options (aluminum-free) at request.

= Preferred program

Standard lever

Top, 60° Top, 30° Straight, 0° Bottom, –30°

Bottom, –60°

Without lever

Standard – Following K L M R– Non-following N O P X

Clamping piece with lever

– Following BBB

123

B1B1B1

123

FFF

123

D1D1D1

123

DDD

123

– Non-following GGG

123

G1G1G1

123

HHH

123

J1J1J1

123

JJJ

123

Clamping piece with-out lever

– Following T T1 U V1 V– Non-following Q Q1 S C1 C

Clamping piece with lever(Example: Lever screwing in Pos. 2)

Lever screwing at the clamping piece

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Pressure relief/anti-cavitation valves, adjustableOrdering code:

S … M … J …–… W2 1 – Q H200

Short descriptionAdjustable pressure relief/anti-cavitation valve, pilot –operatedPressure information in bar after H ... require –(3-digit)Example: QH200 – Q: Plug screw for actuator port A H200: Pressure relief/anti-cavitation valves, set to 200 bar for actuator port BThe directional valve is ready for retroactive fitting –of secondary valvesSee RE 64642. –

Directional valve elements: Secondary valves

Feed valvesOrdering code:

S … M … J …–… W2 1 – E E

Short descriptionSee RE 64642. –

Pres

sure

diff

eren

tial in

bar

→

Flow in l/min →

Pressure function

Flow in l/min →

Setti

ng p

ress

ure

in b

ar →

Feed function

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End elementsEnd element with LS unloadingOrdering code:

LA

End element with LS unloading and additional P and T portOrdering code:

LAPT

End element with LS unloading and pilot oil sup-ply and additional P and T portOrdering code:

LAYPT

Short descriptionTakes oil from P line, pressure reduced to 35 bar –(definitely adjusted), pressure relief valve set to 45 bar

1) When using an inlet element with priority VRQ, VR…, VZQ or VZ… the plug is replaced.

End element with LS unloading and internal pilot oil supplyOrdering code:

LAY


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End elements

End element with LS unloading and pilot oil supplyOrdering code:

LAX

Short descriptionExternal pilot oil supply required –pst, max = 35 bar

End element with LS unloading and pilot oil sup-ply and additional P and T portOrdering code:

LAXPT

Short descriptionExternal pilot oil supply required –pst, max = 35 bar

End element without LS unloadingOrdering code:

LZ

Short descriptionSupply of parallel switched LS signals –

End element without LS unloading and additional P and T portOrdering code:

LZPT

Short descriptionSupply of parallel switched LS signals –

End element with LS unloading and internal pilot oil supply at servohydraulic operationOrdering code:

LAK


1) When using an inlet element with priority VR… or VZ… the plug is replaced.

Attention!Please observe the design instructions on pilot oil sup-ply at servohydraulic operation on page 18.

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1) When using an inlet element with priority VRQ, VR…, VZQ or VZ… the plug is replaced.

End element without LS unloading, with pilot oil supplyOrdering code:

LZYShort description

Supply of parallel switched LS signals –Takes oil from P line, pressure reduced to 35 bar –(definitely adjusted), pressure relief valve set to 45 bar

End element without LS unloading, with pilot oil supply and additional P and T portOrdering code:

LZYPTShort description

Supply of parallel switched LS signals –Takes oil from P line, pressure reduced to 35 bar –(definitely adjusted), pressure relief valve set to 45 bar

End elements

End element without LS unloading, with internal pilot oil supply at servohydraulic operationOrdering code:

LZK 2)

Short descriptionSupply of parallel switched LS signals –Takes oil from P line, pressure reduced to 35 bar –(definitely adjusted), pressure relief valve set to 45 bar

Attention! Please observe the design instructions on pilot oil sup-ply at servohydraulic operation on page 18.

End element without LS unloading, with pilot oil supplyOrdering code:

LZX

Short descriptionSupply of parallel switched LS signals –External pilot oil supply required –pst, max = 35 bar

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M4-12

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End element with external priority portOrdering code:

LVZ

Short descriptionTo connect external priority actuators –

End elementsEnd element without LS unloading, with pilot oil supply and additional P and T portOrdering code:

LZXPT

Short descriptionSupply of parallel switched LS signals –External pilot oil supply required –pst, max = 35 bar

Adapter plate for M4-12 directional valve elementsOrdering code:

L12 Y

Short descriptionWith integrated pilot oil supply –For flanging further M4-12 sections, see datasheet –RE 64276

End element for central inlet element, diversion plateOrdering code:

LU

Diversion plates for central inlet element

End element for central inlet element, diversion plate with additional T portOrdering code:

LUT

End element for central inlet element, diversion plate with additional LS, P and T portOrdering code:

LUPT …

Short descriptionPressure information in bar required (3-digit) –


Unit dimensions: Line connections

Inlet element, lateral Closed center P G 1T G 1LS, LSS, LS1, LSP1,

G 1/4

Y G 1/4M G 1/4S G 1

Open center P G 1T G 1 1/4LS G 1/4X, Y G 1/4M G 1/4

Inlet element, central Closed center P G 1 1/4T G 1 1/4LS G 1/4LSS, LS1, LS2 G 1/4X, Y G 1/4

Priority input P G 1T G 1

Directional valve element with secondary valves A1, B1 G 3/4a1, b1 G 1/4MA, MB G 1/4Ma1, Mb G 1/8

End element P G 3/4T1 G 3/4LS G 1/4LSZ G 1/4X, Y G 1/4

Adapter plate X, Y G 1/4T G 3/4

Fastening screws M10 according to EN ISO 4762 or EN ISO 4014:Property class: 8.8 10.9Fastening torque: 41 ± 2 Nm 60 ± 3 Nm

Connections according to ISO 1179-1

P = PumpP1 = Subordinate connectionA, B = Actuatora, b = Pilot lineT, T1 = TankX = Pilot oil supplyY = Tank, at zero pressureLS = Load-sensing (LS)LSZ = LS supplyLSP1 = LS port subordinate actuatorsLSS = LS priority portM = Pump measuring portMA, MB = Measuring ports LS

pressureMa, Mb = Measuring ports pilot

pressureS = Priority actuators

S

LS

T P

LSS

801070

10113

133

22

83

M10

32 40

3697

102

15

97

130

36

27

133

92

58

903532

38

93

65

88

12.535

M10

130

T P

M

LS

20

29

22

11310

LS

P1

LSP1

T

P

130

83

133

M10

36

1060

Y

4050

98

92

31

61

115

103

17

30

30

30

19

22

1131060 36

10

LSS

LSS

T

P

130

83

97

133

35

98

77 102

97

40

M10


Unit dimensions: Lateral inlet elementsLateral inlet element J Lateral inlet element P

Lateral inlet element VR Lateral inlet element VL

10

22

6010

36

133

113

1585

80

90.5

30.5

32 40

130

M10

LS

T

P

30

22

1131060 36

10

133

130

4032

T

P

LS

85

15

97

M10

80


Unit dimensions: Central inlet elementsCentral inlet element JZ Central inlet element VZ

LS XY

T

P

130

M10

3578 12

63

12125

75

153 90

14

64

70

25 40 47

ca. 34 40

105

46 60

18

27

22

133

51

A B

12

33

25,5

48,5

93,5


Central inlet element JK

Unit dimensions: Central inlet elements

Unit dimensions: Directional valve element

Actuator port G 3/4

6463

39

56,586

,539

"b"

"a"63

108

86,5

152

169

86135

60˚

230

6463

39

56,586

,539

"b"

"a"63

108

86,5

152

169

86135

60˚

230


Unit dimensions: OperationMechanical / hydraulic operation with standard cover

Ordering code:

… M – …

… H – …

Electrohydraulic operation

Ordering code:

… W . –

Electronic pilot module with hand lever

Ordering code:

… C . A K …

Cover A Cover B

Cover A Cover B

Cover A Cover B

28

20

Y

T1

LSZ

54

40

65

133

130

15

50

30,5 82

,5

20

Y

T1

LSZ

54

40

65

133

130

15

50

28

X

82,5

30,5

22

20

Y

T

LSZ

40

65

133

130

50

28

X

18

30

112

54

82,5

28

28

26

25

Y

T

130

X

7751

153

38

40

52

82


Unit dimensions: End elements for lateral inlet elementOrdering code:

LA

LZ

Ordering code:

LAX

LZX

Ordering code:

LAY

LZY

Ordering code:

L12

22

20

133

130

50

65

100

35

20

133

130

50

65

35

20

133

130

50

65

35

31

75

40 52


Ordering code:

LU

Unit dimensions: End elements for central inlet element

Ordering code:

LVZ

Ordering code:

LUT

2027

22

133

6525

3532

38

88

93

133

T

PA1 B1

A2 B2

A3 B328

4

5151

51

65

3 x

51 =

153

50

130

58

92

90

130

131

31

32

69

162

5445

40

69

261

LSZ

Y T1

M

LS

1

4

10

7

8

5

3

2

8

7

6

9

92,5

4548,5

12,5

30,5

25,5

25,5

82,593,5


Unit dimensions: Control block closed center with lateral inlet element

1 Nameplate2 Inlet element J...

“Closed center”3 Directional valve elements4 End element LA 5 Control cover H (side A) for hy-

draulic operation6 Control cover standard

(side B)7 Stroke limiter8 Secondary valves9 Tie rod

10 Mounting thread 4 x M10; 15 deep

(according to the order example of page 12, dimensions in mm)

36

28

32

22

8

20

2022

133

65

35

T

P

A1 B1

A251

51

LSZ

Y T1

X

48,5

6010

10

113

22

99

130

131

5080

50

310

18

13393

5345

69

130

25,5

54133151

40

112

130

454

49

289

4.1

5.2

1

5.13

10

26

9

7

40

B2

9

4.2

92.5

93,5

30,5

97,5

162,

5

26,5

82,5

30

25

85

133


Unit dimensions: Control block closed center with central inlet element(according to the order example of page 13, dimensions in mm)

1 Nameplate2 Central inlet element VZ…

“Closed center” with priority valve3 Directional valve elements

4.1 End element LAY 4.2 Diversion plate LU 5.1 Control cover W (side A) for elec-

trohydraulic operation5.2 Control cover CBA (side A) with

electronic pilot module 6 Control cover K (side B)7 Stroke limiter8 Primary pressure relief valve9 Electro-proportional pressure relief

valve, type KBPS10 Tie rod11 Mounting thread

4 x M10; 15 deep

1276.2

20

25

1523

22

28

133135

440

236

25 78

4698

114

18

85

40

113141

20

48

106

45 30 40 63 75

35

118 44

76 9046

4630

5150

4047

130

344

125 64

63T

P

A1 B1

A2 B2

A3 B3

MP

XLS

1

2

3.1

3.2

4.1

4.2

5 6.1

8

9

157,

5

25,5

48,5

93,5


Unit dimensions: Control block closed center with combined inlet element(according to the order example of page 14, dimensions in mm)

1 Nameplate2 Central inlet element JK…

“Closed center”3.1 Directional valve element M4-153.2 Directional valve element M4-124.1 End element LA 4.2 Diversion plate LU

5 Control cover CBA (side A) with electronic pilot module

6.1 Control cover K (side B)6.2 Control cover standard (side B)

7 Stroke limiter8 Tie rod9 Mounting thread

4 x M10; 15 deep


On-board electronics: Electronic pilot module (EMP2)FunctionThe electronic pilot module controls the flow at the control block M4-15 via an analog or digital electrical signal.An analog (voltage or PWM signal) or digital (CAN bus) input signal is converted by the pilot module into a pilot pressure via two electrohydraulic pressure reducing valves.In case of an analog input signal, each pilot module is con-nected individually to the control electronics of the machine.In case of CAN bus operation, is it possible to loop the electri-cal connection to the next pilot module via a second plug-in connection (daisy chain cabling). The complete valve control block is then connected to the control of the machine via the 4-pin plug of the first pilot module.The electrical connection is realized via a 4-pin plug, type Bosch Kompakt 1.It is also possible to connect further CAN bus units at the out-put of the last pilot module (see also RE 64815-B).

FeaturesTime functions (ramp functions), form of the characteristic curve and increase are parameterizable and can be changed directly during the working cycle via the CAN bus.Various diagnosis functions allow to monitor the fault-free function of the pilot module.The following elements are monitored with the standard version:

Correct reception of a valid command value signal –Stability of the connection to the command value encoder –The adherence to the defined limits of supply voltage –Function of the pilot valves (short-circuit, cable break) –

Malfunctions are indicated in the form of a error code (blink-ing code) via an LED that can be seen from the outside.With the analog module, there is a relay output available as error indicator.With the CAN bus variant, the error code is transferred to the control in the state telegram of the pilot module and can then be analyzed by the control.

Low cabling effort with CAN wiring through daisy chain –Clocked output stages with superimposed dither –Processor-independent watchdog –Selectable time ramps, separated individually for valve –outputs A and B, Open and Close (only for CAN, fixed parameter for analog module)

Electronic pilot module EMP2

Modifiable characteristic curve from linear to progressive –trend separately for A and B (only CAN, fixed parameter for analog module)Linear decline of the characteristic curve, modifiable in op- –eration, and therefore also linear lowering of the complete flow (CAN only, fixed parameter for analog module)Selectable time ramps for shutoff in the error case (only for –analog module)Selectable monitoring limits for operating voltage –Parameterizable via CAN bus –Protection class according to EN 60529 IP 69K – (only with plugged Bosch Kompakt connectors)Condition Monitoring –

Internal saving of temperatures•Internal counting of the operating hours•Internal saving of diagnostic data•

Comprehensive parameterizibility according to the client's –requirements by Rexroth in the factory

OptionsPosition sensor –with measuring port –

Electronic pilot module: Parameter specifications

The form for the parameter specifications can be found in the project planning aid RE 64815-02. It serves for setting the electronic pilot module according to the requirements of the customer ex factory.

��

��

��

��

��

��

� � � �

��

��

��

��

� � � �

��


Electronic pilot module: Pin assignmentPin assignment at the Bosch Kompakt plug-in connector

Coding 2 (plug-in connector gray)

Pin assignment at the CAN plug-in connectorConnection via Bosch Kompakt plug coding 1.Via the second Bosch Kompakt plug c oding 2, a connection to the next module or to another CAN participant is possible if CAN operation is used.

Note!Connecting cables and plug-in connectors are not included in the scope of supply and need to be ordered separately (see accessories pages 51, 52).

Attention!Please observe at all times the safety notes of the operat- –ing instructions RE 64815-B.Bosch Rexroth warrants the correct function of the unit as –described in the operating instructions RE 64815-B. With this unit, Bosch Rexroth declines any warranty for the safe operation of the machine or plant of which this unit is a part.

Coding 1 (plug-in connec-

tor black)

Electronic pilot module: Accessories

Material number Type Description Length

Daisy chain cable

R917c02581R917c02599R917c02628

CableCableCable

For the connection of two pilot modules (standard)For the connection of two pilot modulesFor the connection of two pilot modules via central inlet

190 mm240 mm370 mm

Special cable

R9017c05332 Cable with two plug-in connectors, coding 1 (black) 90°

R917c05333 Cable with two plug-in connectors, coding 2 (gray) 90°

Bosch Rexroth AG HydraulicsZum Eisengießer 197816 Lohr am Main, Germany Phone +49 (0) 93 52 / 18-0 Fax +49 (0) 93 52 / 18-23 [email protected] www.boschrexroth.de

© All rights with Bosch Rexroth AG, including applications for property rights. It may not be reproduced or given to third parties without its consent.The data specified only serve to describe the product. Our information cannot be used to derive a particular property or suitability for a specific use. The information conveyed does not relieve the user from making own evaluations and performing own inspections. Please note that our products are subject to a natural process of wear and aging.


Electronic pilot module: Accessories

Material number Type Description Length

Connecting cable

R917c02724R917c04484

CableCable

with one plug-in connector, coding 1 (black)with one plug-in connector, coding 2 (gray)

4,000 mm4,000 mm

Plug-in connectors and connector sets

R917c05459R917c02627

Plug-in connectorPlug-in connector

Coding 1 (black), dummy plugCoding 2 (gray), dummy plug

R917c05458R917c04605

Plug-in connectorPlug-in connector

Coding 1 (black), dummy connector with integrated terminal resistanceCoding 2 (gray), dummy connector with integrated terminal resistance

R900785606 Connector set Bosch Kompakt coding 1 (black)

R900785607 Connector set Bosch Kompakt coding 2 (gray)

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