Description
Product Overview
The Rexroth R901002090 VT-VSPA2-1-20/V0/T1 is a multifunctional valve amplifier card within Bosch Rexroth’s product range, designed to play a crucial role in hydraulic control systems. With Bosch Rexroth’s reputation for high – quality engineering and innovation, this amplifier card is developed to meet the precise control requirements of industrial applications.
This amplifier is engineered to control the solenoid current for Rexroth proportional valves without the need for LVDT (Linear Variable Differential Transformer) position feedback. It simplifies the control mechanism while maintaining high – level performance. Whether integrated into large – scale industrial plants or smaller, specialized hydraulic systems, the R901002090 VT – VSPA2 – 1 – 20/V0/T1 contributes to the smooth and accurate operation of hydraulic processes.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | VT – VSPA2 – 1 – 20/V0/T1 |
| Manufacturer Part Number | R901002090 |
| Manufacturer | Bosch Rexroth |
| Product Type | Multifunctional Valve Amplifier Card |
| Input Format | Analog input with configurable settings |
| Output | Controls solenoid current for proportional valves |
| Voltage Stabilization | Partially with raised measuring zero point |
| Command Value Inputs | Supports voltage and current inputs |
| Internal Adjustment | 4 trimming potentiometers for internal command value adjustment, call – up via relays with LED indicator lamp (on some versions) |
| Ramp Generator | Ramp times are adjustable |
| Special Function | Jump function for quickly passing through overlaps of directional valves |
| Enable Input | Available on some versions |
| Card Format | Eurocard format for easy integration |
Rexroth R901002090 VT-VSPA2-1-20/V0/T1
Main Features and Advantages
Precise Solenoid Current Control
The R901002090 VT – VSPA2 – 1 – 20/V0/T1 is specifically designed to precisely regulate the solenoid current in Rexroth proportional valves. This accurate control ensures that the valves operate within tight tolerances, which is essential for maintaining the quality and efficiency of hydraulic processes. For example, in a hydraulic press application, precise valve control can lead to consistent and accurate pressing forces, resulting in high – quality products. By eliminating the need for LVDT position feedback, the amplifier simplifies the system design while still delivering reliable performance.
Configurable Analog Input
One of the key features of this amplifier card is its configurable analog input. This allows users to adapt the amplifier to different types of input signals, providing flexibility in system integration. Whether the input comes from a sensor, a control panel, or another source, the user can adjust the settings of the amplifier to optimize its performance. This adaptability makes it suitable for a wide range of industrial applications, from simple hydraulic circuits to complex, multi – valve systems.
Adjustable Ramp Generator
The integrated ramp generator on the R901002090 VT – VSPA2 – 1 – 20/V0/T1 has adjustable ramp times. This feature is beneficial in applications where a smooth start – up or shut – down of the hydraulic system is required. For instance, in a hydraulic cylinder that moves heavy loads, a slow ramp – up of the valve opening can prevent sudden shocks and stresses on the mechanical components, extending their lifespan. The ability to adjust the ramp times according to the specific needs of the application adds to the versatility of the amplifier.
Jump Function for Directional Valves
The inclusion of a jump function for quickly passing through overlaps of directional valves is a unique advantage of this amplifier. In hydraulic systems with multiple valves, there are often situations where rapid transitions between different valve states are necessary. The jump function enables the amplifier to quickly bypass the overlapping regions of directional valves, ensuring smooth and efficient operation. This feature is particularly useful in applications such as automated manufacturing lines, where fast and precise hydraulic control is crucial for high – speed production.
Rexroth R901002090 VT-VSPA2-1-20/V0/T1
Application Field
The R901002090 VT – VSPA2 – 1 – 20/V0/T1 finds applications in various industries. In the manufacturing industry, it can be used in hydraulic presses for metal forming, where precise control of the pressing force is required to produce high – quality parts. In the construction machinery sector, it can control the hydraulic valves in excavators, loaders, and bulldozers, ensuring smooth and efficient operation of the hydraulic actuators.
In the automotive manufacturing industry, this amplifier can be integrated into hydraulic systems for vehicle assembly, such as in the operation of robotic arms that handle heavy components. Additionally, in the aerospace industry, where reliability and precision are of utmost importance, the R901002090 VT – VSPA2 – 1 – 20/V0/T1 can be used in hydraulic test stands and ground support equipment to control the flow and pressure of hydraulic fluids with high accuracy.
Related Products
- Rexroth VT – VSPA1 – 1 – 20/V0/T1: A simpler version of the VT – VSPA2 series, the VT – VSPA1 – 1 – 20/V0/T1 may have fewer features or a lower level of functionality. It could be suitable for applications with less complex control requirements, such as small – scale hydraulic systems in hobbyist or light – industrial settings.
- Rexroth VT – VSPA2 – 2 – 20/V0/T1: This variant likely has additional channels or enhanced capabilities compared to the R901002090 VT – VSPA2 – 1 – 20/V0/T1. It may be designed for applications that require the control of multiple proportional valves simultaneously, such as in large – scale industrial hydraulic systems with complex valve configurations.
- Rexroth VT – VSPA2 – 1 – 20/V1/T1: With a different input configuration denoted by “V1”, this product might be optimized for a specific type of input signal or communication protocol. It could be more suitable for systems where the input source has a different format or for applications that require compatibility with a particular control system.
- Rexroth VT – VSPA2 – 1 – 30/V0/T1: This model may offer a different output capacity or performance level, with the “30” indicating potential differences in power handling or control range. It could be used in applications where higher solenoid current requirements or more demanding control tasks are present.
- Rexroth VT – VSPA2 – 1 – 20/V0/T2: The “T2” designation may imply a different set of features or a modified design for specific environmental or operational conditions. It could be designed for use in harsh industrial environments, such as those with high temperatures, vibrations, or electromagnetic interference.
Installation and Maintenance
Pre – installation preparation: Before installing the R901002090 VT – VSPA2 – 1 – 20/V0/T1, carefully review the product manual to ensure that the installation environment meets the specified requirements. Check the compatibility of the amplifier with the existing hydraulic system components, including the proportional valves it will control. Verify that the power supply voltage and frequency are within the acceptable range. Prepare all necessary tools for installation, such as screwdrivers, pliers, and wire strippers. Mount the amplifier in a clean, dry, and well – ventilated location, following the provided mounting instructions. Connect the input and output wires according to the wiring diagram, ensuring that all connections are secure and properly insulated.
Maintenance recommendations: Regularly inspect the amplifier for any signs of physical damage, such as cracks or loose connections. Check the input and output signals using appropriate diagnostic tools to ensure that they are within the expected range. Clean the amplifier’s exterior periodically to remove dust and debris, especially if it is installed in a dirty environment. If the amplifier has adjustable parameters, periodically review and adjust them as needed to maintain optimal performance. In case of any abnormal behavior, such as erratic valve control or unusual noises, refer to the product manual for troubleshooting steps. If the problem persists, contact Bosch Rexroth’s technical support team for assistance. Keep records of all maintenance activities, including inspection dates, any adjustments made, and any issues encountered and resolved, for future reference.
Product Guarantee
Bosch Rexroth is committed to the quality of the R901002090 VT – VSPA2 – 1 – 20/V0/T1. The product undergoes strict quality control procedures during manufacturing to meet the highest industry standards. Bosch Rexroth typically offers a [X] – year warranty on this amplifier card. During the warranty period, if any quality issues arise due to manufacturing defects, Bosch Rexroth will provide free repair or replacement services. Additionally, Rexroth’s technical support team is available to assist customers with installation, operation, and maintenance questions. Whether it’s helping with system integration, resolving technical problems, or providing advice on optimizing performance, the support team ensures that customers can use the R901002090 VT – VSPA2 – 1 – 20/V0/T1 with confidence, maximizing the reliability and lifespan of their hydraulic control systems.
