Description
📦 Product Introduction
The Bosch Rexroth VT3000-37 is an analog amplifier printed circuit board designed to control pilot-operated proportional directional valves and direct-operated proportional pressure valves without electrical position feedback. It translates low-level command signals from a PLC or manual controls into regulated, pulse-width-modulated (PWM) coil currents. Built with integrated ramp generators, onboard switching relays, and adjustable internal potentiometers, this card ensures smooth, shock-free industrial hydraulic motion.
📊 Technical Datasheet
- Model Number: VT3000-37 (VT 3000 Series 3X)
- Manufacturer: Bosch Rexroth / Indramat
- Card Format: 32-Pin Eurocard
- Power Supply Voltage: 24 VDC (\pm10% tolerance)
- Maximum Output Current: 800 mA
- Power Consumption: 30 W (Max 50 VA)
- Dimensions (Height x Depth): 185 mm x 170 mm
- Weight: 0.15 kg (0.33 lbs)
- Country of Origin: Germany / United States (Dependent on manufacturing plant)
- Operating Temperature Range: 0°C to 50°C (32°F to 122°F)
🔧 User Instructions
- Insertion and Mounting: Slide the 32-pin Eurocard directly into a standardized single card holder (such as VT 3002) or standard card rack slot inside your control cabinet. Ensure proper alignment with the rear connector pins.
- Power & Wiring Connections: Connect the regulated 24 VDC supply to the designated power pins, and route your proportional valve solenoid wires to the respective current output terminals.
- Adjustment and Tuning: Use the accessible front-panel potentiometers (R1 through R4) to fine-tune command values, velocity steps, and acceleration/deceleration ramp times.
- Status Monitoring: Observe the onboard faceplate LEDs (H1 through H4 for relays, and operational indicators) to easily verify active input signals and power status.
❓ Frequently Asked Questions (Q&A)
- Q: What is the main purpose of the Rexroth VT3000-37 card?
A: It serves as an electronic control amplifier that converts voltage command inputs into proportional current outputs to accurately drive hydraulic valves.
- Q: How many velocity or command settings can be pre-configured on this card?
A: It features four internal command potentiometers, allowing up to four discrete velocity or pressure settings selectable via internal contact relays.
- Q: What safety feature protects the board against short circuits?
A: The circuit layout includes polarization protection for the voltage supply alongside an accessible 2.5 A faceplate-mounted fuse to isolate faults.
