VT-VRPA2-1-11/V0/T5
The VT-VRPA2-1-11/V0/T5 electric amplifier module from Bosch Rexroth Indramat forms a core element of the VT-VSPA Proportional Amplifiers series, delivering precision control for demanding servo applications. Housed in a compact Eurocard format with PCB dimensions: 100 x 160 x 35 mm, this analog amplifier requires a Power Supply of 24 V and weighs just 0.25 kg, making it ideal for space-sensitive installations. The unit supports a Control Signal range from –10 to +10 V and accommodates a Current Input of 1.5 or 2.5 A, ensuring compatibility with a broad spectrum of actuators. An adjustable Ramp Adjustment feature allows fine-tuning of response curves, while the integrated Characteristic Curve Generator offers five programmable slopes with phase identification to match various valve dynamics. Reverse polarity protection and a robust short-circuit protected Output Stage safeguard both the amplifier and connected devices against common electrical faults.
In operation, the VT-VRPA2-1-11/V0/T5 exhibits rapid, stable performance through a closed-loop PID control architecture that maintains precise position and flow control. Fault Detection capabilities include Cable break monitoring and Partial short-circuit protection on both input and output channels, enhancing system safety in unpredictable environments. Dual Digital Inputs provide enable and polarity change functions, while a Ready Output signal communicates operational status to higher-level controllers. A 2.5 kHz Oscillator Frequency ensures smooth modulation of valve currents, and an Interruptible Measurement Socket permits real-time diagnostics without disrupting the control loop. These technical features combine to deliver fast response times, minimal deadband compensation, and consistent performance under varying load conditions.
Engineered for reliability and seamless rack-mount integration in 19-inch control cabinets, this amplifier supports continuous operation in industrial settings with minimal maintenance. Reverse polarity protection and comprehensive short-circuit safety measures reduce downtime and protect personnel from electrical hazards. The module’s lightweight construction and standardized Eurocard form factor simplify retrofits and system expansions, enabling quick replacement or parallel installations for multi-axis control. Typical applications include proportional control of servo solenoid valves such as the 4WRP series, hydraulic valve banks, and other high-precision fluid power systems where accurate flow regulation and fail-safe operation are paramount.
