HYDRAFORCE
4204850

***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 Hydraforce directly.***
The Hydraforce 4204850 (4204850) is a sophisticated valve driver tailored for hydraulic proportional valve control. This microprocessor-based, plugin style device is specifically designed to drive a single coil in a closed-loop configuration. It utilizes an independent signal for precise control and includes a PID closed-loop system, which users can configure via the HFImpulse software tool—a program provided free by Hydraforce. The EGDRA model offers an LED output indicator for real-time status acknowledgment and features a timed ramp-up on startup to ensure smooth operation. The controller accepts input from various analog or digital interface devices, such as AC frequency detectors or speed sensors. This versatility allows the EGDRA to modulate output current in response to changes in input signal, enabling accurate and proportional metering of the hydraulic valve for optimized system responsiveness. Built-in diagnostics within the unit help detect any fault conditions promptly, automatically switching the system to a safe mode where the valve remains off until the issue is resolved. This includes detecting any input below 0.5 Vdc or identifying short or open circuit conditions. Moreover, Hydraforce's EGDRA is available in multiple configurations or 'personalities' to better match specific application needs—ranging from general purpose setups (EVDRA) to specialized versions like those for transmission applications (ETDRA) and generator controls (EGDRA). Each variant is designed to cater to distinct operational requirements, ensuring that users can select a model best suited for their particular hydraulic control tasks.