Product Description:

The VT 5041-24/3-0D is an input-output interface card produced by Bosch Rexroth Indramat for the VT-5000 IO Cards series. It plugs into a backplane beside hydraulic valve amplifiers and translates control voltages into solenoid drive currents while monitoring return signals for machine diagnostics. Within an automation cabinet, the board supplies regulated power, logic enable, and message outputs that let a programmable controller supervise proportional valves without discrete wiring.

The card operates from a nominal 24 V DC supply and remains functional between a lower limit of 21 V and an upper limit of 35 V. At this bus voltage, it draws a continuous current of 0.6 A but can reach 1.25 A during peak demand. A dedicated channel can deliver up to 2.5 A to proportional solenoids, and the logic section releases that energy only when the input exceeds the 12 V enable threshold. The internal oscillator runs at 5.4 kHz; this switching frequency shapes the output waveform so inductive loads receive a smooth average current through the 2 Ω power stage. The socket has an impedance of 2 kΩ, so upstream electronics place a light load on the analog command lines.

Connections are made through a DIN 41612 Design D edge connector that aligns the card with standardized Rexroth rack systems. Incoming current feedback passes through a 100 Ω shunt, generating a measurable voltage that the controller interprets as current flow. Diagnostic messaging is provided by a constant 20 mA current loop, ensuring signal integrity over long cabinet runs. The board sends reference levels such as the Dm2 3.6 V and Iw9 1 V test points for calibration, and it withstands an output-stage load of 2 Ω without distortion. A front plate height of 128.4 mm keeps the module flush with adjacent Eurocards and supports orderly installation in the rack.