VT-SSPA1-100-1X/V0/0-24

***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-SSPA1-100-1X/V0/0-24 (R901030116) is a sophisticated plugin amplifier designed for precise control in hydraulic systems. It is engineered to be mounted directly onto a valve connection base in accordance with EN standards, offering flexibility with 90-degree rotation increments for installation. The device features command value presetting, with a range between 0 and the operating voltage (UB), ensuring the solenoid current is proportional to the command value within a specified voltage range and remains nearly constant at higher values up to UB as per the Imax setting for switching applications. Equipped with an integrated ramp generator, this amplifier moderates control output incline, allowing separate adjustments for ramp-up and ramp-down times. This functionality is particularly useful in mitigating switch-on and switch-off impulses in switching applications, contributing to smoother transitions and reducing system shocks. The characteristic curve of the VT-SSPA1-100-1X/V0/0-24 exhibits a linear increase up to a certain command value, enabling precise adjustments through zero point correction with potentiometer Z and maximum value correction via potentiometer G. The power output stage operates on a freely clocking basis, with its clock frequency variable depending on factors such as current level, operating voltage, and solenoid impedance—a feature that can be fine-tuned using potentiometer f. This plugin amplifier also facilitates regulated current signal generation that corresponds to control outputs from the summing device. Notably, an optimal clock frequency ensures balanced valve hysteresis and noise levels within the hydraulic system. In summary, this component from Bosch Rexroth's series X analog connector design is tailored for use with KKDSR valves and offers configurable settings for proportional command value-current characteristic curves, adjustable maximum currents for differential inputs only, zero point calibration, command value attenuation, maximum current adjustment, as well as dither frequency settings—all essential for versatile application in complex hydraulic systems.