Rexroth R901002090 VT-VSPA2-1-20/V0/T1

Product Name: Analog Proportional Amplifier Card (VT-VSPA2-1-20/V0/T1)
Product Introduction: 24 VDC analog proportional valve driver on 100×160 mm Eurocard, designed for valves without electrical position feedback such as 4WRA 6/10 (2X) and WRZ 7X directional proportional valves.

Description

Technical Specifications:
- Supply: 24 VDC with integrated AC/DC converter, polarity protected
- Command Input: Differential ±10 V (4 inputs) or 4–20 mA
- Polarity Change: Via 24 V input or jumper
- Ramp Selection: Via 24 V phase-ident input or ramp-enable input, T1 = single adjustable ramp
- Zero Adjustment: 30 % range, no raised zero point (V0)
- Card Format: Eurocard 100×160 mm, DIN 41494
- Protection: IP20 (cabinet mount), 2 A exchangeable fuse, inrush limiter
- Temp Range: 30–90 °C internal, ambient per cabinet
Functional Features: Characteristic curve correction via step/gain pots, differential/current input select, enable logic, fault recognition at output stage, green ready LED.
Application Scenarios: Steel mill roll-gap cylinder control, marine steering gear proportional flow, general hydraulic axis without LVDT.
Installation Requirements: Mount in 19″ card frame or Rexroth VT 3002 holder, rewire per re-wire table if replacing older VT 3014, keep PWM power traces away from command lines.
Usage Notes: Not for LVDT feedback valves (use VRPA/VSPD instead); T1 means one ramp profile only; zero and gain pots are locked after commissioning.

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