Rexroth VT2000-5X Frequency Converter AC Drive
The Rexroth VT2000-5X is a frequency converter AC drive from Bosch Rexroth's VT-VS or VT-VSP series, designed for variable speed control of three-phase asynchronous motors. The VT2000 designation indicates the product line and frame size, while the -5X suffix specifies the drive's rated output power. This series represents Rexroth's robust and versatile drive platform for industrial applications, transforming a fixed voltage and frequency from the mains supply into a variable voltage and frequency output for precise motor control.
Technical Specifications
The Rexroth VT2000-5X frequency converter is available in multiple power ratings defined by the last digit of the suffix. The -51 variant provides 0.75 kW (1 HP), the -52 variant provides 1.5 kW (2 HP), and the -53 variant provides 2.2 kW (3 HP). The mains supply voltage is three-phase 380 to 480V AC at 50/60 Hz. The output voltage ranges from zero to the input voltage, varying in proportion to the output frequency. The output frequency range is adjustable from 0 to 400 Hz. The drive supports V/f control for voltage-to-frequency ratio regulation, with possible sensorless vector control depending on firmware and options.
Design and Modularity
The VT2000 series is known for its modularity, offering a range of options and accessories for flexible adaptation to various applications. The compact design facilitates installation in space-constrained control cabinets, while the modular construction allows for easy configuration and expansion. The drive includes comprehensive protection features including overcurrent protection, overvoltage protection, undervoltage protection, overtemperature protection, and short-circuit protection, ensuring reliable operation in demanding industrial environments.
Control Features
The VT2000-5X frequency converter provides precise control of motor speed, torque, and acceleration or deceleration rates. Adjustable parameters include acceleration and deceleration times, minimum and maximum frequency limits, torque boost settings, and slip compensation. The drive supports multiple control modes including local control via the keypad, remote control via digital and analog inputs, and fieldbus control for integration into automated systems. Advanced features may include PID control for process regulation, energy optimization for reduced power consumption, and automatic torque boost for improved low-speed performance.
Applications
The Rexroth VT2000-5X frequency converter is suitable for a wide range of industrial applications requiring variable speed control of three-phase motors. Typical applications include pump control for flow regulation, fan control for air handling systems, conveyor drives for material handling, and compressor control for industrial gas systems. Additional applications include machine tool drives, packaging machinery, textile machinery, and any application where energy savings and process control through variable motor speed are desired. The drive is particularly well-suited for applications requiring simple to moderate control complexity with reliable operation.
