VT 3006-37 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT 3006-37 is part of the VT 3000 Analog Amplifiers series and has a maximum output current of 800 mA with a minimum of 20 mA. The amplifier operates with a 24 VDC power supply voltage ±10%, requires 30 W of power, and features a fuse rating of 2.5 A. It has a division width of 0.200 inches on the face plate and weighs 0.15 kg.
Internal Product Review
The VT 3006-37 is a Bosch Rexroth Indramat analog amplifier designed for precise hydraulic control, with a 24 VDC ±10% power supply and 800 mA maximum output current. Stable signal handling comes from a 10 V differential input and low temperature drift of 0.5‰/K, making the unit a strong choice for consistent analog performance.
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Product Description:
The VT 3006-37 plug-in module is an analog amplifier card produced by Bosch Rexroth Indramat for the VT 3000 Analog Amplifiers series. Designed for mounting in a standard 32-pin rack, it converts reference voltages from a machine controller into regulated current that drives proportional hydraulic valves. This function lets automated presses, molding machines, and test rigs modulate fluid power with electrical commands, linking electronic control loops to physical actuation in industrial automation.
Electrical performance centers on a supply rail of 24 VDC ± 10%, under which the board consumes up to 30 W for cabinet power planning. Its output stage supplies as much as 800 mA to the valve coil while maintaining a minimum of 20 mA so that magnetic force remains present. Load resistance can be as high as 19.5 Ω before the current regulator reaches saturation. A 2.5 A miniature fuse protects the card from overcurrent faults, and the additional command voltage range of ±6 V provides a secondary trim input for local jogging or calibration. Input impedance is 500 Ω or higher to prevent the card from loading low-power PLC analog channels. These electrical characteristics support stable valve control across the available command range without requiring a separate output amplifier.
Signal reference quality is maintained through a differential input span of 10 V, with the main control line accepting symmetrical values of ±9 V for forward and reverse valve motion. Temperature stability is held to 0.5‰/K, limiting gain drift across typical machine shop temperatures. The front-panel test point uses a scale of 1 mV = 1 mA, allowing coil current to be checked with a multimeter. The measured zero offset of +9 V can be compensated during setup, while the slim 0.200-inch (5.08 mm) division width and eight-division faceplate occupy minimal rack space. The module has an overall mass of 0.15 kg, which minimizes the mechanical load placed on the rack backplane during machine operation.
