VT-VRPA1-100-12/V0/0

The Bosch Rexroth Indramat VT-VRPA1-100-12/V0/0 belongs to the VT-VRPA Electric Amplifiers series and is manufactured by Bosch Rexroth Indramat. This robust amplifier features a 5 A current rating and accepts 100–240 VAC input, making it ideally suited for precise analog actuation in hydraulic systems. Its primary function is to regulate and control 4WRL...M-3X valves in closed-loop applications, ensuring accurate position and flow control under demanding industrial conditions.

Equipped with closed-loop position control with PID action, the VT-VRPA1-100-12/V0/0 delivers consistent performance with a nominal power consumption of 37 W. The unit employs a clocked output stage that is fully short-circuit-proof, enhancing reliability in fault-prone environments. Temperature handling ranges from 0 °C to +70 °C during operation and from –20 °C to +70 °C in storage, while LED indicators provide real-time feedback: green for enable mode, yellow for open feedback signal, and red for undervoltage alarm. A front-panel potentiometer allows precise adjustment of amplitude attenuation and zero-point offset, and open-circuit protection safeguards the feedback signal cable.

Constructed from durable aluminum with an IP20 protection class, the amplifier measures 120 × 60 × 30 mm and weighs 0.5 kg, facilitating integration into compact assemblies. The DIN 41 612-F32 plug connector and a printed circuit board sized 100 × 160 × approx. 35 mm ensure seamless interfacing with existing hydraulic controls. Rapid energizing and de-energizing functions improve responsiveness in dynamic operations. Certified to IP20 standards and optimized for industrial automation, this amplifier enhances system efficiency, durability, and precision, delivering reliable hydraulic control for a wide range of applications.