# **Rexroth SYHNC100-WRP-4-P4P-I-00000 R901108573**

Product Introduction SYHNC100-WRP-4-P4P-I-00000 R901108573 is a digital closed-loop control unit for Rexroth proportional servo valves. The unit integrates electronics and valve drive to control hydraulic cylinder position or pressure. It is used in machine tools, plastics machinery, and metallurgical hydraulic axes.

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Description

Rexroth SYHNC100-WRP-4-P4P-I-00000 R901108573

Technical Specifications

  • Product type: Digital hydraulic axis controller
  • Supply: DC24 V
  • Command: ±10 V / field bus
  • Feedback: LVDT / displacement transducer
  • Valve: Proportional servo valve
  • Control: Position, pressure, force
  • Sampling: High speed digital
  • Operating temperature: 0 °C to +60 °C
  • Storage temperature: -20 °C to +70 °C
  • Humidity: 5 % to 95 %, non-condensing
  • Protection: IP65
  • Mounting: Valve direct mount
  • LEDs: Status

Functional Features

  • Digital closed-loop hydraulic control
  • Position, pressure, force modes
  • LVDT displacement feedback
  • Ramp and gain adjustment
  • Integrated valve power stage
  • Field bus interface
  • Auto-tuning
  • Fault diagnostics
  • IP65 valve mount
  • Anti-windup

Application Scenarios

  • Injection molding machine
  • Machine tool hydraulic axis
  • Press control
  • Metallurgical equipment
  • Test rig force control

Materials and Construction

  • Housing: Coated metal
  • PCB: FR4
  • Power stage: Valve drive
  • Connectors: Industrial round
  • Seal: Gasket
  • Potentiometers: Digital

Structural Features

  • Direct mount on proportional valve
  • Side connectors
  • Internal digital controller
  • Sealed housing
  • Valve mounting bolts
  • Compact integrated design

Working Principle Position command compared with LVDT feedback. Error drives valve current; cylinder moves until position matches. Pressure mode switches to pressure sensor feedback. Auto-tuning computes gains.

Installation Requirements

  • Mount on valve
  • Connect LVDT feedback
  • Connect command and supply
  • Ground shield
  • Temperature 0 °C to +60 °C
  • Tune control loops
  • Hydraulic clean oil

Precautions

  • Hydraulic oil filtration required
  • Feedback cable shielded
  • Do not exceed valve current
  • Calibrate LVDT zero
  • Store spares dry
  • Check valve coil resistance
  • Avoid contamination