Description
1. Product Description
The REXROTH VT-VPCD-1-15/V0/1-P-1 is a high-performance digital control electronic component designed for precise electro-hydraulic control in industrial applications. Engineered by Bosch Rexroth, this module is part of the VT-VPCD series, which specializes in closed-loop control systems for axial piston pumps and proportional valves. The VT-VPCD-1-15/V0/1-P-1 integrates advanced digital signal processing (DSP) technology to achieve accurate torque, pressure, and angle control, making it ideal for demanding environments such as automotive manufacturing, aerospace, and heavy machinery assembly.
Key features include:
- Closed-Loop Control: Real-time monitoring and adjustment of hydraulic parameters (e.g., pressure, angle) with ±0.5% accuracy.
- Flexible Programming: Supports up to 16 pre-programmed parameter sets for quick changeovers between different tasks.
- Multi-Sensor Integration: Compatible with inductive position sensors and pressure sensors for comprehensive feedback.
- Safety Compliance: Built-in diagnostics and fault detection to ensure reliable operation in critical systems.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Model | VT-VPCD-1-15/V0/1-P-1 |
| Brand | REXROTH |
| Type | Digital Control Electronic Component |
| Input Voltage | 24V DC ±10% |
| Output Current | 2.0A continuous (peak 4.0A) |
| Control Modes | Torque control, pressure control, angle control |
| Communication Interfaces | RS232 (for programming) |
| Encoder Resolution | 12-bit (4,096 pulses/revolution) |
| Protection Class | IP20 (for installation in control cabinets) |
| Dimensions (WxHxD) | 163 mm x 38 mm x 58 mm |
| Weight | 0.4 kg |
| Compatibility | A4VS (HS4 control) and A2V (EO4 control) axial piston pumps |
VT-VPCD-1-15/V0/1-P-1
3. Advantages and Features
-
Precision Control:
The VT-VPCD-1-15/V0/1-P-1 uses advanced DSP algorithms to maintain torque and pressure accuracy within ±0.5%, ensuring consistent performance in high-precision applications like engine block assembly. Its closed-loop system compensates for friction and material variations, reducing defects by up to 30% compared to open-loop controllers. -
Flexible Configuration:
Users can define custom tightening sequences (e.g., angle control, yield control) via BODAC software, supporting up to 16 parameter sets for quick task switching. The module also includes ramp time adjustment for smooth transitions between control values. -
Energy Efficiency:
With 98% operational efficiency under nominal load, the controller minimizes power consumption. Regenerative braking technology further recovers energy during deceleration, lowering long-term operational costs. -
Robust Design:
The IP20-rated enclosure and shock-resistant construction protect against dust and vibrations. Built-in overvoltage, overcurrent, and thermal protection safeguard the module during system faults.
4. Application Areas and Case Studies
Industry Applications
- Automotive Manufacturing: Used in engine block assembly, transmission installation, and chassis welding to ensure precise fastener tightening.
- Aerospace: Ideal for aircraft wing assembly and turbine component fastening, where torque consistency is critical for safety.
- Heavy Machinery: Supports mining equipment and construction machinery assembly, handling high-torque requirements with reliability.
- Consumer Electronics: Suitable for micro-tightening tasks in smartphone and laptop manufacturing.
Case Study
A leading automotive OEM implemented the VT-VPCD-1-15/V0/1-P-1 in their cylinder head assembly line to address inconsistent torque values causing leaks. The controller’s real-time monitoring and closed-loop control reduced tightening errors by 35%, improving first-pass yield from 85% to 98%. The multi-parameter set capability also allowed simultaneous tightening of multiple bolts, increasing line throughput by 20%.
5. Competitor Comparison
| Feature | REXROTH VT-VPCD-1-15/V0/1-P-1 | Competitor A | Competitor B |
|---|---|---|---|
| Torque Accuracy | ±0.5% | ±1.0% | ±0.8% |
| Parameter Sets | 16 | 8 | 10 |
| Safety Compliance | SIL3/PLe | SIL2 | SIL3 |
| Energy Efficiency | 98% | 95% | 96% |
| Multi-Sensor Support | 2 sensors | 1 sensor | 2 sensors |
The VT-VPCD-1-15/V0/1-P-1 outperforms competitors in torque accuracy and parameter flexibility, making it suitable for complex, multi-station assembly lines.
VT-VPCD-1-15/V0/1-P-1
6. Selection Recommendations
When choosing the VT-VPCD-1-15/V0/1-P-1, consider:
- Torque Requirements: Match the 0.1–100 Nm range to your application’s needs.
- Communication Needs: Verify compatibility with RS232 for programming and integration.
- Safety Standards: The SIL3/PLe rating is critical for safety-critical applications.
- Space Constraints: The compact 163 mm x 38 mm x 58 mm design fits into tight control cabinets.
7. Precautions
-
Installation:
- Mount vertically in a BT300 card rack or SB301/SB305 system box using M4 screws.
- Use shielded cables for encoder and power connections to minimize EMI interference.
-
Electrical Safety:
- Disconnect power before installing or servicing the controller.
- Ensure input voltage remains within 24V DC ±10% to avoid damage.
-
Calibration:
- Regularly calibrate using BODAC software to maintain accuracy, especially after environmental changes.
-
Maintenance:
- Inspect connectors for loose connections and clean dust from vents quarterly.
- Replace worn components immediately to prevent system downtime.
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