VT-VSPA1-1-11D/V0/0
The VT-VSPA1-1-11D/V0/0 proportional amplifier by Bosch Rexroth Indramat is a member of the VT-VSPA Proportional Amplifiers series designed for precise control of current to hydraulic proportional pressure valves. Operating on a 24 VDC (22 V–35 V) voltage range, it ensures consistent performance in industrial automation applications. Key features include adjustable ramp times of 30 ms – 5 seconds for dynamic pressure control and a compact Euro card format (100 x 160 mm) for space-efficient integration. The primary function of this module is to regulate solenoid current in valves without LVDT feedback, providing accurate hydraulic actuation in manufacturing and mobile equipment systems.
In-depth technical specifications highlight the amplifier’s robust design: it consumes up to 50 VA of power with a maximum current draw of 1.8 A, protected by an installed 2.5 A slow-blow fuse. Input configurations accommodate both 0–10 V voltage signals and 4–20 mA current loops, while the output stage offers selectable ranges of 800 mA or 1600 mA depending on solenoid requirements. Connectivity is secured via a 32-pole male multipoint connector, ensuring reliable electrical interfacing even in vibration-prone environments. Short-circuit protection is built in to safeguard against overloads and minimize downtime.
Additional features emphasize durability and compatibility: the amplifier operates reliably between 0 °C and +50 °C and can be stored from –25 °C to +85 °C without degradation. Humidity tolerance up to 0.9 ensures stable performance in humid plant conditions. Its lightweight 0.1 Kg construction simplifies retrofits and system upgrades, while regulated voltage test points facilitate maintenance and diagnostics. In industrial applications, the VT-VSPA1-1-11D/V0/0 delivers efficient, dependable pressure modulation, reducing cycle times and enhancing overall system responsiveness.
