VT-11024 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-11024 is a servo amplifier in the VT Servo Amplifiers series with a 12-pin terminal strip connection and operates at 24 VDC. The unit features a solenoid current of 2.2 A and a fuse rating of 3 A, with a maximum current consumption of 2 A. Its dimensions are 40 x 79 x 85.5 mm and it weighs 0.14 kilograms.
Internal Product Review
The VT-11024 is a Bosch Rexroth Indramat servo amplifier with a 24 VDC operating voltage and a 12-pin terminal strip. A 50 kΩ input resistance and 5 V output amplitude support stable signal handling in precise control circuits. Compact construction and 2.2 A solenoid current make this unit a strong choice for dependable servo amplification.
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Product Description:
The VT-11024 is a servo amplifier card manufactured by Bosch Rexroth Indramat for the VT Servo Amplifiers series. Installed in hydraulic control cabinets, it interfaces between low-level command electronics and proportional valve solenoids, shaping current so that spool position follows the reference from a PLC or analog controller. Its role in industrial automation is to stabilize motion loops by comparing transducer feedback with the command signal and adjusting coil excitation accordingly.
The amplifier is powered from a nominal supply of 24 VDC; internal regulators keep the output stages active as long as the system voltage remains above the lower limit of 21 V and below the upper limit of 35 V. Peak demand from the electronics and driver circuits is 2 A, so external wiring and cabinet power rails must be sized for that draw, while an onboard blade fuse rated at 3 A provides overcurrent protection. Input command lines present an impedance of 50 kΩ, minimizing the load on upstream signal sources. A 12-pin terminal strip accepts supply, feedback, and command conductors, and the housing dimensions of 40 × 79 × 85.5 mm allow tight stacking on DIN rails. The board can energize inductive feedback drivers up to 30 mA and supports transducer strokes up to 4.0 mm for spool position sensing.
For actuation, the output stage delivers a maximum solenoid current of 2.2 A through coils that measure 10 Ω at room temperature, generating force proportional to the command voltage. The differential output amplitude reaches 5 V, matching typical LVDT or magnetostrictive position sensors. Release thresholds are set so the driver becomes inactive below 6.5 V and reengages above 8.5 V, preventing chatter during supply dips. Connection integrity is maintained by the compact enclosure, and the overall mass is only 0.14 kg, reducing mechanical stress on backplane connectors in machines exposed to vibration.
