Description

Technical Specifications

• Model: VT-VPCD-1-1X/V0/1-0-1
• Brand: Bosch Rexroth (Germany, VT-VPCD digital controller amplifier series)
• Warranty: One Year
• Power Supply: 24 VDC control power (21~30VDC wide tolerance), max 3.5A power consumption
• Operating Temperature: 0°C ~ 50°C continuous operation
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Scan Cycle: 2ms deterministic closed-loop control cycle
• Protection Class: Eurocard standard plug-in PCB, EMC surge & ESD suppression, conformal coated circuit board
• Core Control Function: HS4 swivel angle + pressure closed-loop regulation for A4VS axial piston variable displacement pumps
• Parameter Configuration: Onboard LED digital display + 4 operation buttons, support ramp setting, power limitation, leakage compensation, oscilloscope diagnosis function
• Communication Interface: RS232 serial port for BODAC PC commissioning software, DIN 64-pin backplane bus connector
• Supported Input Signals: 0–10V voltage / 4–20mA analog setpoint from PLC or upper controller
• Built-in Protection: Pump swivel angle feedback wire break detection, output short-circuit lockout, overheating protection, hardware fault code indication
• Dimension & Weight: Standard Eurocard size 100mm(W) × 160mm(H), net weight 0.2kg
• 

Product Overview

The VT-VPCD-1-1X/V0/1-0-1 is a high-performance digital electro-hydraulic controller amplifier developed by Bosch Rexroth, specially matched with A4VS series variable displacement axial piston pumps equipped with HS4 hydraulic control mechanism. It serves as the core closed-loop computing unit for pump displacement adjustment, receiving analog command signals from the main automation controller and converting them into proportional drive currents for the pump’s HS4 hydraulic valve. The module realizes dual closed-loop control of pump swivel angle and system pressure, with built-in power limiting algorithm to protect hydraulic pumps and prime movers from overload damage. Local commissioning can be completed directly via the front digital display and physical buttons, while deep parameter modification, curve calibration and fault waveform recording are realized through the RS232 interface paired with Rexroth official BODAC configuration software. Comprehensive self-diagnosis functions automatically detect sensor open circuits, output short circuits and internal hardware failures, and display fault codes on the LED screen for rapid maintenance troubleshooting. Adopting standard Eurocard plug-in rack mounting design, it features compact structure and strong anti-vibration capability. Widely applied in heavy-duty hydraulic systems for injection molding machines, metallurgical rolling equipment, mining machinery, hydraulic presses and large engineering vehicles, it delivers precise, stable and safe variable pump displacement control for complex industrial hydraulic drive systems.