REXROTH VT5013-37/R5E Electrical Amplifiers

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Product Details

The Bosch Rexroth VT5013-37/R5E is an analog electric card amplifier designed in a Euro-card format. It acts as a controller to regulate the electronic flow and positioning of proportional throttle valves, ensuring precise positioning and high-dynamic execution. This specific configuration features a standard 32-pin linear plug connection and an English front plate (E) with accessible potentiometers for manual optimization.

(1) Operating Voltage: Requires a nominal power supply of 24 VDC

(2) Ramp Time (R5E): Maximum basic transition speed of 5 seconds (R5)

(3) Command Values: Features differential signal inputs (e.g., 0 to +6 V, 0 to +9 V) as well as current input loops (0 to 20 mA or 4 to 20 mA)

(4) Operating Temperature: Nominally operates efficiently in standard environments from 0°C to +50°C

Application

❖ Closed-Loop Fluid Regulation: Acts as the regulatory card in hydraulic systems to compensate for unpredictable load pressures and external disturbance variables.

❖ Axial Piston Pump Management: Deployed within industrial systems demanding synchronized flow controls for mechanical displacement pumps.

❖ Fail-Safe Machinery Infrastructure: Incorporated into critical heavy-machinery automation where automatic physical valve closure is mandated during a primary power failure or unexpected cable disconnection.

Faq

Q1. What is the fundamental purpose of Rexroth VT series amplifier cards in industrial hydraulics?

A1: Rexroth VT series electronic amplifiers act as the vital communication bridge between digital control systems (like PLCs) and analog hydraulic machinery. They convert low-power command signals (such as 0–10V or 4–20mA) into high-current, pulse-width modulated (PWM) outputs. This precisely regulates the solenoids on proportional valves, controlling fluid flow, pressure, and mechanical direction with high dynamic accuracy.

Q2. What are the most common system-level failure modes observed in Rexroth amplifier installations?

A2: When a hydraulic system fails to respond to command inputs, the root causes associated with the amplifier card generally involve:

(1) Cable and Loop Breaks: Interrupted lines between the amplifier output and the valve solenoid, which automatically triggers the card's internal safety shutdown.

(2) Supply Voltage Fluctuations: Voltage drops below the absolute minimum threshold (typically under 20V) caused by underpowered or shared cabinet power units.

(3) Thermal Overloading: Insufficient ventilation inside dense control cabinets, causing the ambient temperature to exceed the maximum +50°C operational limit and tripping thermal protection.

Q3. In which heavy industries are Bosch Rexroth proportional systems most commonly deployed?

A3: Bosch Rexroth systems are the global standard for heavy-duty applications requiring massive force coupled with precise positioning. Key sectors include:

(1) Plastic & Rubber Machinery: Controlling high-speed, high-pressure injection molding clamping and extrusion processes.

(2) Metallurgy & Steel Mills: Managing the intense, high-temperature movements of arc furnace electrodes, continuous casting lines, and heavy rolling mills.

(3) Press Construction: Regulating deep-drawing hydraulic presses where synchronous multi-cylinder movement is critical.

(4) Marine & Offshore Engineering: Powering deck winches, steering gear, and active heave compensation systems under harsh maritime conditions.

Company Service

Fast delivery (1-2 days will ship out for in stock products)

Rich experience (Established more than 10 years)

Large inventory ( Various brands and overseas warehouse)

Quality insurance ( Clear products condition with 1 year warranty)

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