Bosch‑Rexroth VT‑VPCD‑1‑16/V0/1‑P‑1 R901089559 Product Description

The VT‑VPCD‑1‑16/V0/1‑P‑1, material number R901089559, is a Eurocard‑format digital closed‑loop control amplifier board for Rexroth A4VS…HS4 and A2V…EO4 series variable‑displacement axial‑piston pumps. It controls pump swash‑plate inclination via integrated inclination‑sensor signal demodulation, pressure closed‑loop regulation and programmable power‑limiting function. This hardware is end‑of‑production; the recommended successor replacement series is VT‑HPC (RE30237). Base firmware is pre‑loaded; pump‑specific parameters must be downloaded via Rexroth HYDAC‑Win engineering software before commissioning; unit manufactured in Czech Republic, weight approx 0.5 kg.

Product Features

• Dedicated control electronics for HS4 / EO4 variable‑pump: closed‑loop swash‑plate inclination control, subordinate pressure‑control loop, adjustable power‑limiting curve characteristic, master‑slave / mooring synchronization control modes.
• Dual inductive sensor‑input channels for demodulating pump‑inclination and valve‑position feedback signals; accepts external set‑point command signals: 0‑10 V analog voltage or 4‑20 mA current input from host‑PLC system.
• On‑board comprehensive protection: over‑current, over‑temperature, short‑circuit protection; multi‑colour front‑panel LED status indicators for power, run‑state and fault‑alarm, internal fault‑event buffer for post‑failure diagnostics.
• Back‑plane bus interface for rack‑system communication; supports parameter upload‑download, real‑time status monitoring and system diagnostic access via engineering tool software.
• Standard 3U Eurocard plug‑in module for 19‑inch subrack installation; auxiliary 24 VDC power supply, operating temperature range 0‑55 °C, IP20 protection grade for cabinet‑mount environment.
• R901089559 is fixed part variant; hardware circuit, sensor‑interface and firmware baseline must match original pump‑system configuration; cannot freely swap‑in with other VT‑VPCD model variants without project‑adaptation and validation test.
• Pre‑installed base firmware; pump‑specific control‑parameters, set‑point scaling and power‑limiting curve settings must be downloaded; parameter mismatch will cause unstable pump‑pressure and flow‑output behaviour.

Application Scenarios

• Heavy‑industry hydraulic systems: forging presses, die‑casting‑machines, large‑injection‑molding‑machines high‑pressure variable‑pump control racks.
• Marine‑deck‑machinery, offshore‑equipment hydraulic power‑unit variable‑pump closed‑loop control systems.
• Hydraulic test‑benches requiring high‑precision pressure‑flow‑power coordinated control for variable‑displacement piston pumps.
• Retrofit‑replacement and spare‑part‑maintenance for existing industrial plants equipped with aging VT‑VPCD‑1‑16 series amplifier hardware.

Frequently Asked Questions