4/3 proportional directional valve, direct operated, with pq functionality and field bus interface (IAC-P)

Transcription

1 4/3 proportional directional valve, direct operated, with pq functionality and field bus interface (IAC-P) Type 4WREQ Sizes 6 and Component series 2X Maximum operating pressure 35 bar Maximum flow 8 l/min Table of contents Content Page Features Ordering code 2 Symbols 2 Standard types 3 Structure, function, section 3 to 5 Technical data 6 and 7 Closed-loop control electronics, identification and adjustment elements 8 Electrical connections and pinout 8 and 9 Settings for CANopen and PROFIBUS-DP Block circuit diagram Characteristic curves 2 to 9 Unit dimensions 2 to 23 Accessories 24 to 26 Engineering / maintenance notes / supplementary information 27 Features RE 295/.8 Replaces: 7.5 HAD 799/3 /28 Direct operated proportional directional valve with integrated digital control electronics for the closed-loop control of pressure, force and flow (Integrated Axis Controller IAC-P) Completely matched unit consisting of valve, pressure sensor(s) (optional), digital closed-loop control electronics and field bus interface Actuation by proportional solenoid with central thread and detachable coil Position-controlled valve spool Integrated pressure sensor plate (optional) For subplate mounting: Porting pattern to ISO 44 Analog interfaces for command and actual values Version for CAN bus with CANopen protocol DS 48 or PROFIBUS-DP V/V Fast commissioning by means of PC and commissioning software WIN-PED 6

2 2/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Ordering code With integrated digital electronics and pq functionality = Q Size 6 = 6 Size = Spool symbols A B a b a b a 4WRE Q 2X V 24 * G P T Type 4WREQ.Q5-... A P = Q5- B T = V Nominal flow ) Size 6 8 l/min = 8 6 l/min = 6 32 l/min = 32 Size 25 l/min = 25 5 l/min = 5 75 l/min = 75 Component series 2 to 29 = 2X (2 to 29: unchanged installation and connection dimensions) FKM - rectangular rings suitable for mineral oils (HL, HLP) to DIN 5524 = V Pressure rating with internal sensors bar 2) = 4 6 bar 2) = 5 25 bar 2) = 8 4 bar 3) = B External sensor = ) See flow characteristic curves starting on page 2. 2) The selected pressure rating limits the max. valve pressure. 3) Attention: Maximum valve pressure 35 bar 4) When internal pressure sensors are used, no external pressure sensor may be connected. Symbols P b a G A6 = F6 = Type 4WREQ.V... A P B T P b Further details in clear text Sensor interface for external pressure sensor 4) 2 = 4 to 2 ma 3 = to V 4 = to 5 V 9 =.5 to 5 V = Without external sensor interface Electronics interface 5) ± VDC 4 to 2 ma Bus interface C = CAN bus DS 48 P = PROFIBUS-DP V/V Supply voltage 24 = 24 VDC Position of pressure sensors = External sensor Internal sensor in channel A = A B = B C = A + B F = P + A + B Application Q control p control only in A p control only in B p control in A + B or p control Ordering code 5) With command value input A6 only sensor interfaces 3, 4 or 9 are possible. With command value input F6 only sensor interface 2 is possible. F A B C

3 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 3/28 Standard types Size 6 Type 4WREQ 6 Q5-8-2X/V8F-24CA6 4WREQ 6 Q5-6-2X/V8F-24CA6 4WREQ 6 Q5-32-2X/V8F-24CA6 4WREQ 6 Q5-8-2X/VBF-24CA6 4WREQ 6 Q5-6-2X/VBF-24CA6 4WREQ 6 Q5-32-2X/VBF-24CA6 4WREQ 6 Q5-8-2X/V5C-24PF6 4WREQ 6 Q5-6-2X/V5F-24PA6 4WREQ 6 Q5-32-2X/V5A-24PF6 4WREQ 6 V8-2X/V5F-24PF6 X Material no. R R R R97842 R97843 R97844 R93669 R9643 R97434 R P Size A Note: Draining of the tank line must be prevented. If the installation situation allows, install a suitable pre-load valve. Type Structure, function, section (valve with integrated sensors) Structure The valve basically consists of: Housing () and pressure sensor plate (2) with connection face Control spool (2) with compression springs (3 and 4) and spring plates (8 and 9) Coils (5 and 6) and pole tubes (4 and 5) with central thread 4WREQ Q5-25-2X/V8F-24CA6 4WREQ Q5-5-2X/V8F-24CA6 4WREQ Q5-25-2X/VBF-24CA6 4WREQ Q5-5-2X/VBF-24CA6 4WREQ Q5-75-2X/V8F-24PA6 Position transducer (7) Integrated pressure sensors () B T X2 Material no. R R R97847 R97849 R98893 Integrated digital closed-loop control electronics IAC-P () Continued on page 4 X3

4 4/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Structure, function, section (valve with integrated sensors) Continued from page 3 Functional description When solenoids (5 and 6) are de-energized, control spool (2) is brought by compression springs (3 and 4) between spring plates (8 and 9) to the central position (if V-spool is used, without spring plates). With V-spools, the mechanical zero position is not identical with the hydraulic zero position. Depending on the valve type, the following functions can be performed (in some cases, combinations are possible): Open-loop flow control (Q) Closed-loop flow control (Q) Closed-loop pressure control in A and/or B (p) Closed-loop force control (p) Alternating closed-loop control of p/q The command values can be fed forward alternatively via an analog interface (X) or via the field bus interface (X2, X3). The actual value signals are made available via an analog interface (X) and can be read out additionally via the field bus (X2, X3). The controller parameters are adjusted via the field bus For safety reasons, separate supply voltage for bus/controller and power part (output stage) The digital integrated control electronics allows the following faults to be detected: Cable break of pressure sensor () Undervoltage Cable break of position transducer (7) Communication error Watchdog Cable break of command value inputs (with current interface only) Structure, function, section (valve for external sensor) Structure The valve basically consists of: Housing () with mounting face Control spool (2) with compression springs (3 and 4) and spring plates (8 and 9) Coils (5 and 6) and pole tubes ( and ) with central thread Position transducer (7) Integrated digital closed-loop control electronics IAC-P (2) Connection (X4) for an external pressure sensor (4) The following additional functions are available: Ramp generator Internal command value profile Enable function analog / digital Fault output 24 V PC program WIN-PED 6 For performing engineering work and parameterizing IAC-P valves, the user can utilize the commissioning software WIN- PED 6. - Parameterization - Diagnosis - Comfortable data administration on a PC System requirements IBM PC or compatible system Windows 2 or Windows XP RAM (recommendation 256 MB) 5 MB free hard disk space Note The program WIN-PED 6 is not included in the scope of supply. It can be downloaded free of charge on the Internet! (See page 24) Continued on page 5

5 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 5/28 Structure, function, section (valve for external sensor) Continued from page 4 Functional description When solenoids (5 and 6) are de-energized, control spool (2) is brought by compression springs (3 and 4) between spring plates (8 and 9) to the central position (if V-spool is used, without spring plates). With V-spool, the mechanical zero position is not identical with the hydraulic zero position. Functions: Open-loop flow control (Q) Closed-loop pressure control (p) Alternating closed-loop control of p/q The command values can be fed forward alternatively via an analog interface (X) or via the field bus interface (X2, X3). The actual value signals are made available via an analog interface (X) and can be read out additionally via the field bus (X2, X3). The controller parameters are adjusted via the field bus For safety reasons, separate supply voltage for bus/controller and power part (output stage) The digital integrated control electronics allow the following faults to be detected: Cable break of pressure sensor supply cable (depending on pressure sensor interface) Undervoltage Cable break of position transducer (7) Communication error 7 X 2 X Watchdog Cable break of command value inputs (with current interface only) The following additional functions are available: Ramp generator Internal command value profile Enable function analog / digital Fault output 24 V PC program WIN-PED 6 For performing engineering work and parameterizing the IAC-P valves, the user can utilize the commissioning software WIN- PED 6. - Parameterization - Diagnosis - Comfortable data administration on a PC System requirements IBM PC or compatible system Windows 2 or Windows XP RAM (recommendation: 256 MB) 5 MB free hard disk space Note The program WIN-PED 6 is not included in the scope of supply. It can be downloaded free of charge on the Internet! (See page 24) Note: Draining of the tank line must be prevented. If the installation situation allows, install a suitable pre-load valve. 4 X3 X4

6 6/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Technical data (for applications outside these parameters, please consult us!) General Size 6 Size Installation position Storage temperature range C 2 +8 Ambient temperature range C 2 +5 Optionally, preferably horizontal Weight with sandwich plate (3 sensors) kg Weight without sandwich plate kg Hydraulic (measured with HLP46, ϑ oil = 4 C ± 5 C) Operating pressure ) Ports P, A, B Port T with sensor with sensor Nominal flow q V nom at p = bar See flow characteristic curves from page 8 on bar bar up to 6 bar bar up to 6 25 bar bar up to 25 4 bar bar up to 35 bar bar up to 6 bar bar up to 6 25 bar bar up to 2 4 bar bar up to 2 l/min Max. permissible flow l/min 8 8 Hydraulic fluid Mineral oil (HL, HLP) to DIN 5524, further hydraulic fluids on request Hydraulic fluid temperature range C 2 +7, preferably Viscosity range mm 2 /s 2 38, preferably 3 46 Permissible max. degree of contamination of the hydraulic fluid - cleanliness class to ISO 446 (c) Class 2/8/5 2) Hysteresis (closed-loop position control - valve spool) %. Range of inversion (closed-loop position control - valve spool) %.5 Response sensitivity (closed-loop position control - valve spool) %.5 Valve spool zero point drift upon change of hydraulic fluid %/ K <.5 temperature and operating pressure %/ bar <. Electrical Supply voltage Nominal voltage VDC 24 Lower limit value VDC 9.4 Upper limit value VDC 35 Max. permissible residual ripple content Vss 2 Current consumption I max A 2 Impulse current A 3 Command and Voltage "A6" U Q V ± actual value signals U p V Current "F6" I Q and I p ma 4 2 Converter resolution (command/actual value signals) Bit Duty cycle 3) % Max. coil temperature 4) C up to 5 Type of protection of valve to EN 6529:99+A:2 IP 65 with plug-in connectors mounted and locked

7 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 7/28 Technical data (for applications outside these parameters, please consult us!) Sensorics Sizes 6 and Measuring range p N bar Overload safety p max bar Burst pressure p bar Calibration error Zero point Final value <.5 % Temperature coefficient within the nominal temperature range Highest TC of zero point <.25 % of final value <.2 % / K Highest TC of range <.2 % / K Characteristic curve deviation <.2 % Hysteresis <. % Repeatability <.5 % Long-term drift ( year) under reference conditions <.2 % With an external pressure sensor, the accuracy of the closedloop pressure control depends on the accuracy class of the sensor used. ) Operating pressure, due to valve and sensor 2) The cleanliness classes specified for components must be adhered to in hydraulic systems. Effective filtration prevents malfunction and, at the same time, prolongs the service life of components. For the selection of filters, see data sheets RE 57, RE 576 and RE 58. 3) Apply supply voltage for the valve only when required for the functional sequence of the machine. 4) Due to the surface temperatures of solenoid coils, observe European standards ISO and EN 982! Note! For details regarding environment simulation tests in the fields of EMC (electromagnetic compatibility), climate and mechanical stress, see RE 295-U (declaration on environmental compatibility).

8 8/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Closed-loop control electronics (IAC-P), identification and adjustment elements Material number 2 Production order number 3 Date of production 4 Serial number 5 Type designation, e.g. 4WREQ -2X/ : + 24V DC (UB) 2: V (UB) 3: enable input 24V DC 4: command value (Q) 5: reference analog 6: actual value (Q) 7: command value (p) 8: actual value (p) 9: control supply +24V : control supply V : error output 24V DC PE: earth conductor 2) ±V... V 6 DIL switch for address and baud rate setting (position B on the right), see page Pin No. or litz wire color ) Pinout of interface A6 ) ) ) 2) 2) R G Rexroth A B ) ( ) ( P T 4WREQ6... A Closed-loop control electronics (IAC-P), electrical connections and pinout Plug-in connector pinout X, -pin + PE to DIN EN P Pinout of interface F6 24 VDC (u(t) = 9.4 V 35 V), I max =.7 A (for output stage) 2 2 V load zero, reference for pins and 9 3 white Enable input V enable ON 4 yellow ± V command value Q R i > 5 kω ma command value Q R i = Ω 5 green Reference for command values Q and P 6 violet ± V actual value Q (limit load 5 ma) ma actual value Q (load resistance max. 3 Ω) 7 pink V command value P R i > 5 kω ma command value P R i = Ω 8 red V actual value P (limit load 5 ma) ma actual value P (load resistance max. 3 Ω) 9 brown Control voltage, level like pin, I max =.3 A (for signal part and bus) black V reference potential for pins 3, 6, 8 and (connected to pin 2 within the valve) blue Fault output 24 V (9.4 V 35 V), 2 ma max. load PE green-yellow Connected to heat sink and valve housing Connect shield to PE only on the supply side! ) Litz wire color of connection cable for mating connector with cable set (see Accessories) X

9 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 9/28 Closed-loop control electronics (IAC-P), electrical connections and pinout Connector plug pinout for CAN bus X2 / X3 (coding A), M2, 5-pin, male/female Pin Connector plug pinout for PROFIBUS-DP, X2 / X3 (coding B), M2, 5-pin, male/female Baud rate kbit/s 2 to Bus address to 27 CAN-specfic settings: The baud rate and identifier can be set via the bus system or by means of the DIL switches. Pin Assignment Baud rate up to 2 MBaud Bus address to 26 +5V Setting by means of DIL switches 2 RxD/TxD-N (A-cable) 3 D GND 4 RxD/TxD-P (B-cable) 5 Shield The +5-V voltage of the IAC-P is available for an external terminating resistor. External pressure sensor connection X4 (coding A), M2, 5-pin, female Pin Assignment n. c. 2 n. c. 3 CAN_GND 4 CAN_H 5 CAN_L Assignment voltage interface Assignment current interface Supply 24 VDC Supply 24 VDC 2 Signal (...+5 V) Signal (4...2 ma) 3 Zero V (GND) Zero V (GND) 4 n. c. n. c. 5 n. c. n. c. Note: We recommend that the shields be connected on both sides via the metal housings of the plug-in connectors. The use of plug pins deteriorates the shield effect! Internal shields are not required. X2 X3 X2 X3 X

10 /28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Closed-loop control electronics (IAC-P), settings for CANopen and PROFIBUS-DP CANopen PROFIBUS-DP ) Factory setting ON B7 B6 B5 B4 B3 B2 B B HEX Baud rate: B7, B6 Address range: B5 to B ) Standard 2 kbaud or reprogrammed to to 3F 4 25 kbaud 4 to to 7F 8 25 kbaud 8 to to BF C 5 kbaud C to to FE FF 25 kbaud B7 B B7 B ON ON ON = standard or reprogrammed 2 kbaud to 63 = standard or reprogrammed 25 kbaud to 63 = standard or reprogrammed 25 kbaud to 63 = standard or reprogrammed 5 kbaud to 62 B7 B6 B5 B4 B3 B2 B B HEX Address range ) 25 = Standard or reprogrammed to to 7E 8 to to FE Monitoring mode/ programming mode = fest Activation of the bus termination using the two lower switches (with PROFIBUS-DP only): Graphic on the left: Graphic on the right: to 26 with parameter channel to 26 without parameter channel FF Monitoring mode address 25 Bus termination not activated Bus termination activated (both switches to ON )

11 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG /28 Closed-loop control electronics (IAC-P), block circuit diagram X2 PROFIBUS-DP X3 Alternatively X2 CAN bus X Command value Q Command value p Actual value Q Actual value p Enable X3 Fault output Reference for pins 4; 7 Reference for pins 3; 6; 8; 24V load supply 24V signal supply GND Protective earth conductor PE I I I I U U U U DC DC ) GND A D A D +Ui Ui GND PROFIBUS controller PWM PWM Microcontroller Output stage supply EEPROM CAN controller Flash A A A A D D D D Controller PWM ) The protective conductor (PE) is connected to the heat sink and the valve housing 2) Pressure transducers in P, A, B and T according to the ordering code or external pressure sensor via the 5-pin M2 mating connector X4 D A D A Cable break Pressure sensor plate: Pressure in P Pressure sensor plate: Pressure in A Pressure sensor plate: Pressure in B Pressure sensor plate: Pressure in T Output stage OFF Act. position value PID Output stage A U I = ~ X4 Output stage B U I Oscillator demodulator Command value: A positive command value of to + V (or 2 to 2 ma) at pin 4 and reference potential at pin 5 corresponds to a flow from P A and B T. A negative command value of to V (or 2 to 4 ma) at pin 4 and reference potential at pin 5 causes a flow from P B and A T. Actual value: A positive actual value of to + V (or 2 to 2 ma) at pin 6 and reference potential at pin corresponds to a flow from P A and B T. A negative actual value of to -V (or 2 to 4 ma) at pin 6 and reference potential at pin corresponds to a flow from P B and A T. Connection cable: Recommendation: up to 25 m cable length for pins ; 2 and PE:.75 mm 2, otherwise.25 mm 2 up to 5 m cable length for pins ; 2 and PE:. mm 2 For outer diameter, see mating connector sketch: 2) b a External pressure Inductive position transducer

12 2/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Characteristic curves size 6 (measured with HLP46, ϑ oil = 4 C ± 5 C) Pressure/signal characteristic curve (Q5 spool), p s = bar p L in % p S Pressure/signal characteristic curve (V spool), p s = bar p L in % p S U E in % U EN Tolerance range of the mechanical zero position (-6 to +6%) U E in % U EN

13 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 3/28 Characteristic curves size 6 (measured with HLP46, ϑ oil = 4 C ± 5 C) Flow, size 6 with Q5 spool Flow in % Flow in % Flow, size 6 with V spool P B Command value in % Tolerance range of mechanical zero position V8 spool V6 spool V32 spool A T Command value in % B T P A

14 4/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Characteristic curves size 6 (measured with HLP46, ϑ oil = 4 C ± 5 C) Flow/load function, size 6 with Q5 spool at max. valve aperture Flow in l/min Valve pressure differential in bar Flow/load function, size 6 with V spool at max. valve aperture Flow in l/min Valve pressure differential in bar 3 3 Permissible maximum flow P A / B T or P B / A T Permissible maximum flow P A / B T or P B / A T

15 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 5/28 Characteristic curves size 6 (measured with HLP46, ϑ oil = 4 C ± 5 C) Transient function, size 6 Stroke in % Signal change in % Time in ms Frequency response, size 6 with Q5 spool, p s = bar Amplitude ratio in db Frequency in Hz Signal 5 ± 5 % Signal 5 ± 2.5 % Signal 5 ± 5 % Frequency response, size 6 with V spool, p s = bar Amplitude ratio in db Frequency in Hz Phase angle in Phase angle in Signal ± % Signal ± 25 % Signal ± %

16 6/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Characteristic curves size (measured with HLP46, ϑ oil = 4 C ± 5 C) Pressure/signal characteristic curve (Q5 spool), p s = bar p L in % p S p L in % p S Tolerance range of mechanical zero position (-6 to +6 %) U E in % U EN Pressure/signal characteristic curve (V spool), p s = bar U E in % U EN

17 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 7/28 Characteristic curves size (measured with HLP46, ϑ oil = 4 C ± 5 C) Flow, size with Q5 spool Flow in % Flow, size with V spool Flow in % A T P B Command value in % Tolerance range of mechanical zero position B T P A Command value in % V25 spool V5 spool V75 spool

18 8/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Characteristic curves size (measured with HLP46, ϑ oil = 4 C ± 5 C) Flow/load function, size with Q5 spool at max. valve aperture Flow in l/min Valve pressure differential in bar Flow/load function, size with V spool at max. valve aperture Flow in l/min Valve pressure differential in bar Permissible maximum flow P A / B T or P B / A T Permissible maximum flow P A / B T or P B / A T

19 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 9/28 Characteristic curves size (measured with HLP46, ϑ oil = 4 C ± 5 C) Transient function, size Stroke in % Frequency response, size with Q5 spool, p s = bar Amplitude ratio in db Signal change in % Time in ms Frequency response, size with V spool, p s = bar Amplitude ratio in db Frequency in Hz Frequency in Hz Phase angle in Signal 5 ± 5 % Signal 5 ± 2.5 % Signal 5 ± 5 % Phase angle in Signal ± % Signal ± 25 % Signal ± %

20 2/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Unit dimensions size 6 (dimensions in mm) Type 4WREQ with integrated pressure sensors 8 5 Valve housing 7 52,4 4 "a" 88,5 6 9,5 55,5 23,8 "b" Proportional solenoid "a" with inductive position transducer 3 Proportional solenoid "b" 4 R-ring 9.8 x.5 x.78 (ports P, A, B, T) 5 Space required to remove mating connector 6 Integrated digital closed-loop control electronics 7 Mating connector to DIN EN ; separate order, see page 25 8 Nameplate 9 Integrated pressure transducers Machined valve mounting face, porting pattern to ISO Deviating from standard: Ports P, A, B, T Ø8 mm Bore G is not required, since the valve is not provided with a pin. 8,/ Rzmax 4 82,5 Required surface quality of valve mounting face 47 8,5 5 F A F ,5 23 Subplates according to data sheet RE 4552 and valve mounting screws must be ordered separately. Subplates: G34/ (G/4) G342/ (G3/8) G52/ (G/2) Valve mounting screws: 4 hexagon socket head cap screws ISO 4762-M5x9-.9-flZn-24h-L (Friction coefficient μ total :.9-.4 to VDA 235-) tightening torque M T = 8.9 Nm ± % Material no. R93222 T P G 47 F2 B 58,8 F3

21 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 2/28 Unit dimensions size 6 (dimensions in mm) Type 4WREQ for external pressure sensor 8 5 Valve housing 7 3,6 55, ,4 23,8 52,4 2 "a" 2 Proportional solenoid "a" with inductive position transducer 3 Proportional solenoid "b" 4 R-ring 9.8 x.5 x.78 (ports P, A, B, T) 5 Space required to remove mating connector 6 Integrated digital closed-loop control electronics 7 Mating connector to DIN EN ; separate order, see page 25 8 Nameplate 9 Machined valve mounting face, porting pattern to ISO Deviating from standard: Ports P, A, B, T Ø8 mm Bore G is not required, since the valve is not provided with a pin ,/ Rzmax 4 Required surface quality of valve mounting face "b" ,5 5 F A F T P 23 Subplates according to data sheet RE 4552 and valve mounting screws must be ordered separately. Subplates: G34/ (G/4) G342/ (G3/8) G52/ (G/2) Valve mounting screws: 4 hexagon socket head cap screws ISO 4762-M5x5-.9-flZn-24h-L (Friction coefficient μ total =.9 to.4) tightening torque M T = 7 Nm ± %, Material no. R9364 or 4 hexagon socket head cap screws ISO 4762-M5x5-.9 (Friction coefficient μ total =.2 to.7) tightening torque M T = 8.9 Nm ± % G 47 F2 B 8,3 F3

22 22/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Unit dimensions size (dimensions in mm) Type 4WREQ with integrated pressure sensors 6 85, , Valve housing "a" 2 Proportional solenoid "a" with inductive position transducer 3 Proportional solenoid "b" 4 R-ring 3. x.6 x 2. (ports P, A, B, T, T2) 5 Integrated digital closed-loop control electronics 6 Mating connector to DIN EN ; separate order, see page 25 7 Nameplate 8 Integrated pressure transducers 9 Machined valve mounting face, porting pattern to ISO ,/ Rzmax 4 "b" Required surface quality of valve mounting face T 69,3 F A F4 P 4 4,5 Subplates according to data sheet RE 4554 and valve mounting screws must be ordered separately. Subplates: G66/ (G3/8) G67/ (G/2) G534/ (G3/4) Valve mounting screws: 4 hexagon socket head cap screws ISO 4762-M6x8-.9-flZn-24h-L (Friction coefficient μ total =.9 to.4) tightening torque M T = 2.5 Nm ± %, Material no. R9352 (separate order) or 4 hexagon socket head cap screws ISO 4762-M6x8-.9 (Friction coefficient μ total =.2 to.7) tightening torque M T = 5.5 Nm ± % B 72,5 9 F2 T F3 85,2

23 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 23/28 Unit dimensions size (dimensions in mm) Type 4WREQ for external pressure sensor Valve housing 6 85,9 "a" , 73 69, Proportional solenoid "a" with inductive position transducer 3 Proportional solenoid "b" 4 R-ring 3. x.6 x 2. (ports A, B, P, T, T) 5 Integrated digital closed-loop control electronics 6 Mating connector to DIN EN ; separate order, see page 25 7 Nameplate 8 Machined valve mounting face, porting pattern to ISO ,/ Rzmax 4 8,3 "b" Required surface quality of valve mounting face T F A F4 P 94 4 Subplates according to data sheet RE 4554 and valve mounting screws must be ordered separately. Subplates: G66/ (G3/8) G67/ (G/2) G534/ (G3/4) Valve mounting screws: 4 hexagon socket head cap screws ISO4762-M6x4-.9-flZn-24h-L (Friction coefficient μ total =.9 to.4) tightening torque M T = 2.5 Nm ± %, Material no. R9358 (separate order) or 4 hexagon socket head cap screws ISO 4762-M6x4-.9 (Friction coefficient μ total =.2 to.7) tightening torque M T = 5.5 Nm ± % B 72,5 8 44,7 F2 T F3

24 24/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Accessories (not included in the scope of supply) The following is required for parameterization by means of a PC: CANopen PROFIBUS-DP Interface converter (USB) VT-ZKO-USB/CA--X/V/ Mat. no. R97963 VT-ZKO-USB/P--X/V/ Mat. no. R Commissioning software WIN-PED 6 Download über 3 Connection cable, 3 m D-Sub / M2, coding A Mat. no. R97527 D-Sub / M2, coding B Mat. no. R

25 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 25/28 Accessories, connection X (not included in the scope of supply) Mating connector für X Mating connector to DIN EN (-pin + PE), plastic variant Mating connector without cable (kit) Mating connector with cable set 2 x 5 m 2-pin Mating connector with cable set 2 x 2 m 2-pin Accessories, sensor connection (not included in the scope of supply) 9 Material no. R Material no. R Material no. R Description Detail, dimensions Pin pattern, order information X4 (analog sensor) Plug-in connector, 5-pin, M2, male, A coding, straight connector, metal variant Ø9,6 ca Mat. no.: R (Cable diameter 4 to 6 mm) 2 33

26 26/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Accessories, CAN bus (A coding) (not included in the scope of supply) Description Detail, dimensions Pin pattern, order information X2 Circular plug-in connector, to be wired by user, 5-pin, M2 Straight mating connector, metal variant. X3 Circular plug-in connector, to be wired by user, 5-pin, M2 Straight plug-in connector, metal variant. M2 cap Dust protector for plugs only Description Detail, dimensions Pin pattern, order information X2 Circular plug-in connector, to be wired by user, 5-pin, M2 Straight plug-in connector, metal variant. X3 Circular plug-in connector, to be wired by user, 5-pin, M2 Straight mating connector, metal variant. M2 protective cap (for mating connector only) Ø9,6 Ø9,6 Accessories, PROFIBUS (B coding) (not included in the scope of supply) Ø9,6 Ø9,6 ca. 56 ca. 6 ca. 6 ca Mat. no.: R (Cable diameter 6 to 8 mm) Mat. no.: R97555 (Cable diameter 6 to 8 mm) Mat. no.: R Mat. no.: R9769 (Cable diameter 6 to 8 mm) Mat. no.: R97696 (Cable diameter 6 to 8 mm) Mat. no.: R

27 RE 295/.8 4WREQ Hydraulics Bosch Rexroth AG 27/28 Engineering / maintenance notes / supplementary information Product documentation for IAC-P Product information RE 295-P Technical data sheet for 4WREQ, RE 295 (this data sheet) Operating manual RE 295-B CAN bus protocol description RE 295--Z Profibus protocol description RE Z General information on maintenance and commissioning of hydraulic components RE 78 / RE 79 Commissioning software WIN-PED 6 and documentation on the Internet: Maintenance notes: The units are tested in the factory and shipped with default settings. Only complete components can be repaired. The repaired components are returned again with the default settings. User settings are not retained or reloaded. The user is responsible for reloading the corresponding user parameters. Notes: Cut the supply voltage to the valve only in when required for the functional sequence of the machine. Electrical signals brought out via control electronics (e.g. signal ready for operation ) must not be used for switching safety-relevant machine functions! (See also European standard safety requirements for fluid power systems and components - hydraulics, EN 982.) If electromagnetic interference is to be expected, take suitable measures to safeguard the function (depending on application, e.g. shield, filter)!

28 28/28 Bosch Rexroth AG Hydraulics 4WREQ RE 295/.8 Notes Bosch Rexroth AG Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany Phone +49 () / 8- Fax +49 () / documentation@boschrexroth.de This document, as well as the data, specifications and other information 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 statements concerning a certain condition or suitability for a certain application 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.