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

Core Technical Specifications

• Controllable Axis Quantity: 4 fully independent closed-loop hydraulic axes
• Valve Compatibility: Rexroth 4WRPE, 4WRPEH, 4WRP series direct-operated proportional valves with integrated OBE position feedback
• Supply Voltage: 24 VDC ±20%, rated input current 6 A peak, steady-state 2.2 A
• Command Signal Interfaces: Analog ±10 V, 4–20 mA; digital pulse/direction encoder feedback; LVDT/inductive valve spool position sensing input
• Fieldbus Protocols Native Support: CANopen, PROFIBUS-DP; optional Ethernet/IP expansion via auxiliary module
• Closed-Loop Control Modes: Position loop, velocity loop, pressure/force loop, compound multi-loop cascade control freely configurable per axis
• ADC Resolution: 16-bit analog signal sampling for feedback and setpoint signals
• Control Cycle Speed: Minimum 0.2 ms single-axis loop, 0.8 ms full 4-axis synchronous cycle
• Environmental Operating Range: -20 °C to +70 °C; storage temperature -40 °C to +85 °C
• Relative Humidity: 5%–95% non-condensing
• Electromagnetic Compliance: IEC 61000-6-2 industrial heavy EMC immunity, surge and burst noise suppression built-in
• Hydraulic Fluid Matching Standard: Requires hydraulic oil cleanliness ISO 4406 Class 18/16/13, viscosity operating range 20–380 mm²/s
• Physical Dimension: 320 mm (width) × 130 mm (height) × 95 mm (depth)
• Net Weight: 3.8 kg

Functional Core Features

1. Independent PID parameter tuning for each of the 4 axes; separate gain scheduling for low/high speed operating zones
2. Built-in motion profile generator: trapezoidal, S-curve jerk-limited acceleration/deceleration to eliminate hydraulic shock
3. Real-time axis synchronization master-slave gearing, electronic cam curve interpolation for multi-axis linkage equipment
4. Comprehensive fault diagnosis system: valve spool offset monitoring, short-circuit detection, feedback signal loss, overvoltage, undervoltage, overcurrent thermal protection
5. Onboard data logging buffer storing 10,000 historical fault codes and axis motion waveform snapshots for troubleshooting
6. Parameterization and diagnostic software WIN-PED V6.6 official Rexroth PC tool; USB front-panel service port for direct connection
7. Thermal overload automatic power derating logic to prevent permanent circuit damage under high ambient temperature
8. Digital filtering modules configurable to suppress industrial electromagnetic interference on analog feedback wiring

Working Principle

1. Upper machine PLC/NC system transmits motion setpoint signals via fieldbus or analog hardwire to the SYHNC100 controller main CPU
2. Internal 16-bit ADC converts analog valve spool position feedback signals to digital values; triple signal sampling verification eliminates single noise distortion
3. High-speed digital comparator calculates deviation between target setpoint and actual measured axis state
4. Independent PID cascade algorithm computes corrective output control signals for each axis proportional valve drive stage
5. Power output circuit drives the proportional valve solenoid, adjusting valve opening flow and direction to reduce closed-loop deviation to zero
6. Real-time hardware watchdog continuously monitors all internal circuit slices; triggers safe hydraulic hold state if any critical signal deviation exceeds threshold

Material & Structural Composition

• Outer Enclosure: Extruded aluminum alloy housing with black anodic oxidation surface treatment, corrosion resistant against oil mist and industrial dust
• Internal Circuit Substrate: FR4 high-temperature industrial PCB with tin-lead-free solder process
• Power Stage Components: High-current MOSFET power modules with aluminum heat sink fin array for passive thermal dissipation
• Front Panel Interface: IP65 rated plastic terminal covers, industrial circular M12 signal connectors, USB service port dust cap
• Mounting Bracket: Cold-rolled steel stamped DIN rail mounting clip integrated on rear chassis

Installation Mandatory Requirements

1. Standard 35 mm DIN rail vertical cabinet mounting; minimum 50 mm vertical clearance above and below unit for air convection cooling
2. Separate shielded twisted-pair wiring for valve feedback signals and power cables; analog signal cable shielding single-point grounded only at controller cabinet terminal
3. Power supply must use 24 VDC industrial stabilized power unit with minimum 10 A output capacity for full 4-axis load operation
4. Cabinet internal ventilation fan required for ambient operating temperature exceeding +50 °C
5. Do not install adjacent to high-power contactors, frequency converters or welding equipment without EMC isolation shielding plates
6. Hydraulic valve signal wiring maximum cable length limited to 25 meters to avoid feedback signal attenuation

Application Scenarios

Operation & Maintenance Precautions

1. Complete power cut before plugging/unplugging M12 valve signal connectors to avoid circuit short-circuit burnout
2. Regular quarterly calibration of valve zero offset parameters via WIN-PED software after long-term equipment continuous operation
3. Prevent hydraulic oil mist ingress into front panel connector ports; clean dust caps monthly in high-dust factory environments
4. Avoid rapid cabinet temperature fluctuations which cause internal PCB condensation corrosion
5. Replace internal cooling heat sink thermal paste every 3 years for continuous 24/7 production line usage
6. All firmware modification and parameter backup files must be stored offline to prevent data loss during power failure