VT-MRPA1-2-1X/V0/0

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth VT-MRPA1-2-1X/V0/0 (R901094751) is a sophisticated amplifier module designed for seamless integration with proportional valves, particularly the way proportional directional valves WRE with one solenoid. This component is engineered to be easily mounted onto top hat rails in accordance with EN standards, utilizing screw terminals for a secure electrical connection. It operates on V direct voltage and includes a power supply unit with a making current limiter to provide all necessary internal supply voltages. The module features command value presetting capabilities, where the internal command value signal is derived from an external command value signal at the differential input and adjusted by the zero point offset potentiometer. The enable function activates the current output stages and conveys the internal command value to the ramp generator, preventing abrupt valve openings through controlled adjustments by set ramp times. The ramp generator plays a crucial role in moderating the incline of the control output without altering ramp time. The characteristic curve generator allows for fine-tuning of step levels and maximum values according to hydraulic needs, ensuring linear progression through zero points. An amplitude limiter ensures that the internal command value does not exceed approximately 100% of its nominal range. Additionally, an oscillator generates control signals for inductive position transducers, while a demodulator processes actual value signals from these transducers. A dedicated controller optimizes control spool position in relation to specific valve requirements. The current output stage generates pulsed solenoid currents within defined limits and incorporates short-circuit protection; it also deactivates in response to internal fault signals or if an enable signal is absent. Fault recognition systems are included to monitor potential issues such as cable breaks or short circuits in position transducer cables and overcurrents at the output stage. The module's design includes differential input for voltage ramp generation with adjustable ramp times, sensitivity adjustments, step level settings, cable break detection for actual value cables, reverse polarity protection for operating voltage, and LED indicators for operational readiness and enable status. It belongs to component series X and showcases an analog modular design tailored for specific applications within hydraulic systems.