VT-VRPA1-500-20/V0 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat VT-VRPA1-500-20/V0 is part of the VT-VRPA Electric Amplifiers series and has a nominal supply of 24 V DC and a capacitor voltage of 63 V DC. The amplifier uses a DIN 41612 F32 plug connector, features a smoothing capacitance of 4700 microfarads, and weighs 0.25 kg.
Internal Product Review
The VT-VRPA1-500-20/V0 is a VT-VRPA electric amplifier that delivers stable control performance with a 24 V DC nominal supply and 4700 µF smoothing capacitance. A DIN 41612 F32 plug connector and 100 kΩ setpoint resistance support straightforward integration and predictable signal conditioning in industrial cabinets. Balanced +15 V and -15 V position supply rails make this amplifier a strong choice for precise proportional control.
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Product Description:
Bosch Rexroth Indramat manufactures the VT-VRPA1-500-20/V0 plug-in amplifier card for proportional valve control within the VT-VRPA Electric Amplifiers series. The board conditions low-level command signals and delivers stabilized drive currents to electrohydraulic actuators, allowing PLCs to regulate pressure or flow without mechanical adjustments. It mounts in a modular 19-inch rack and draws its logic and output power from a single backplane connector, making the card a compact interface between digital controllers and servo-hydraulic stages used in industrial automation.
The card is powered by a nominal supply of 24 V DC, which is buffered by a smoothing capacitor bank totaling 4700 µF. The capacitor bank has a working voltage of 63 V DC, providing headroom during transient surges. An enable input with an impedance of 100 kΩ minimizes loading on upstream safety relays, while a fault output can switch up to 100 mA for status lamps or interlocks. Along the front edge, the module occupies 7 modular spaces in the Rexroth rack, leaving room for adjacent feedback or power cards. Internal reference rails of +15 V and -15 V supply the valve position transducer. A 10 mA potentiometer feed supports external gain or offset trimming. Signal shaping relies on a 100 kΩ setpoint network and a 10 kΩ command potentiometer, with pilot feedback returned through a 20 kΩ path to stabilize closed-loop operation.
The printed circuit board measures 160 mm in length and 100 mm in width, allowing it to fit the corresponding rack format. It is terminated through a DIN 41612 F32 male connector that mates directly with standardized backplanes. The connector carries power, command, feedback, enable, and fault signals, reducing the amount of separate cabinet wiring required for the card. The overall assembly has a mass of 0.25 kg, which reduces strain on the rack guides and supporting hardware during normal operation.
