Description Size 10 Component series 3X Maximum operating pressure 350 bar Nominal flow 50 … 100 l/min Digital interface IO-Link for I4.0 Features Reliable - proven and robust design Safe - fail-safe position of the control spool in switched-off condition Energy-efficient - no pilot oil demand High quality - control spool and sleeve in servo quality Flexible - suitable for position, velocity and pressure control Precise - high response sensitivity and little hysteresis IO-Link interface, optional Product description Valves of type 4WRPEH are direct operated directional control valves with electrical position feedback and integrated electronics (OBE). Set-up The 4WRPEH high-response valve mainly consists of: Valve housing with control spool and sleeve in servo quality (1) Control solenoid with position transducer (2) (optionally with electronics protection membrane (6)) On-board electronics (OBE) (3) with analog or IO-Link interface (4) (optionally with damping plate (5)) Function The integrated electronics (OBE) compares the specified command value to the position actual value. In case of control deviations, the stroke solenoid will be activated. Due to the changed solenoid force, the control spool is adjusted against the spring. Stroke/control spool cross-section is controlled proportionally to the command value. In case of a command value presetting of 0, the electronics adjusts the control spool against the spring to central position. In deactivated condition, the spring is untensioned to a maximum and the valve is in fail-safe position. Control solenoid shut-off In case of the following errors, the control solenoids are de-energized by the integrated electronics (OBE) and the control spool is set to fail-safe position: Falling below the minimum supply voltage Only at interface "F1": Falling below the minimum current command value of 2 mA (includes cable break of the command value line (current loop)) Only at interface "L1": Enable inactive, communication interruption (watchdog) In case of internal IO-Link error Only at interface "C6": Additionally, release inactive Damping plate "D" The damping plate (5) reduces the acceleration amplitudes on the on-board electronics (frequencies >300 Hz). Notice: Using the damping plate is not recommended for applications with mainly low-frequency excitation Electronics protection membrane "-967" To prevent condensate formation in the housing of the integrated electronics (OBE), an electronics protection membrane (6) can be used. Recommended for use outside industry-standard conditions with high ambient air humidity and significant cyclic temperature changes (e.g. outdoors). Type code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 4 WRP E H 10 B ‒ 3X / / 24 * 01 4 main ports 4 02 High-response directional valve, direct operated WRP 03 With integrated electronics (OBE) E 04 Control spool/sleeve H 05 Size 10 10 06 Symbols; for the possible version, see "Symbols/Circuit diagrams" 07 Installation side of the in
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