VT-MRPA1-1-1X/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-MRPA1-1-1X/V0/0 (R901094750) is a sophisticated amplifier module designed for seamless integration with top hat rails according to EN standards, ensuring a secure and reliable fit for industrial applications. Its operation hinges on a 24V DC power supply, and the module features an integrated power supply unit complete with a making current limiter to manage all necessary internal positive and negative voltages. This product boasts a command value presetting function that calculates the internal command signal by combining the external differential input signal with adjustments from the zero point potentiometer. The enable function is critical for engaging the current output stages and transmitting the internal command signal to the ramp generator, which is visually confirmed by an LED indicator. This feature prevents sudden valve activation by modulating the internal command value according to set ramp times. The ramp generator plays a pivotal role in controlling the rate of change in control output, unaffected by subsequent step functions or amplitude attenuators. Users can adjust step levels and maximum values using the characteristic curve generator, ensuring that it meets specific hydraulic requirements without abrupt changes through zero point. An amplitude limiter caps the internal command value at approximately 10% of its nominal range, while an oscillator generates control signals for inductive position transducers. The demodulator then processes these signals to provide real-time feedback on control spool positions. For precise control, this unit features a controller optimized for valve-specific operations and a current output stage capable of delivering solenoid currents ranging from 1 A to 2 A. It also includes protective measures such as short-circuit proofing and deactivation during faults or absence of enable signals. Fault recognition capabilities extend to monitoring position transducer cables for breaks or short circuits and detecting overcurrents at the output stage. Additional features include differential input for voltage, separately adjustable ramp times up/down, adjustable zero point and sensitivity, cable break detection for actual value cables, reverse polarity protection for operating voltage, and LED displays indicating operational readiness and enable status. This component series X amplifier is designed in an analog modular format specifically tailored for way proportional directional valves WRE with one solenoid.