4/3 proportional directional valves, direct operated, with pQ functionality 4WREQ

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4/3 proportional directional valves, direct operated, with pQ functionality 4WREQ

Size 6, 10
Component series 2X
Maximum operating pressure 315 bar
Maximum flow 180 l/min

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 control spool, position-controlled
Integrated pressure sensor plate (optional)
For subplate mounting: Porting pattern according to ISO 4401
Analog interface for command and actual value
Design for CAN bus with CANopen protocol DS 408 or Profibus-DP
Quick commissioning via PC and WIN-PED 6 commissioning software

Type			4WREQ
Size			6	10
Installation position			any, preferably horizontal
Ambient temperature range		°C	-20 … +50
Storage temperature range		°C	-20 … +80
Weight	withsandwich plate (3 sensors)	kg	3.6	8.5
	without sandwich plate	kg	2.4	6.5

Set-up:

Valve with integrated sensors:

The valve basically consists of:

Housing (1) and pressure sensor plate (12) with connection surface

‐

Control spool (2) with compression springs (3 and 4) and spring plates (8 and 9)

‐

Coils (5 and 6) and pole tubes (14 and 15) with central 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 mechanical 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)

•

Flow control (Q)

•

Pressure control in A and/or B (p)

•

Force control (p)

•

Substitutional control p/Q

•

The command value presetting 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

‐

The digital integrated control electronics enables the following error detection:

Cable break pressure sensor (10)

‐

Undervoltage

‐

Cable break position transducer (7)

‐

Communication error

‐

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 parameterize the IFB-P valves, the user may use the WIN-PED commissioning software.

Parameterization

‐

Diagnosis

‐

Comfortable data management on a 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 is available for free download!

‐

4WREQ 6 with integrated pressure sensors

Set-up:

Valve for external sensor:

The valve basically consists of:

Housing (1) with connection surface

‐

Control spool (2) with compression springs (3 and 4) and spring plates (8 and 9)

‐

Coils (5 and 6) and pole tubes (14 and 15) with central thread

‐

Position transducer (7)

‐

Integrated digital control electronics IAC-P (11)

‐

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

‐

Functional description

‐

Functions:

‐

Flow control (Q)

•

Pressure control (p)

•

Substitutional control p/Q

•

The command value presetting 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

‐

The digital integrated control electronics enables the following error detection:

Cable break pressure sensor (depending on sensor interface)

‐

Undervoltage

‐

Cable break position transducer (7)

‐

Communication error

‐

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 parameterize the IFB-P valves, the user may use the WIN-PED commissioning software.

Parameterization

‐

Diagnosis

‐

Comfortable data management on a 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 is available for free download!

‐

4WREQ 6 for external pressure sensor

Important notice:

The PG fitting (13) must not be opened. Mechanical adjustment of the adjustment nut located below is prohibited and damages the valve!

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