VT-VSPA1K-1-1X-002-15SEC Bosch Rexroth Indramat
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MPN: R900934739
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The Bosch Rexroth Indramat VT-VSPA1K-1-1X-002-15SEC is a proportional amplifier from the VT-VSPA Proportional Amplifiers series. This analog-operated amplifier features a supply voltage of 24 V DC, maximum current consumption of 1.8 A, and a max solenoid current of 1.6 A. It is built to the DIN 41494 card standard with dimensions of 100 x 160 mm and uses a 16-pole terminal strip for connections.
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Product Description:
The VT-VSPA1K-1-1X-002-15SEC proportional amplifier is a plug-in Eurocard module manufactured by Bosch Rexroth Indramat for the VT-VSPA Proportional Amplifiers series. Installed in a DIN 41494 rack, the card converts a voltage command into a regulated current that drives a single hydraulic solenoid. By providing closed-loop linearization between controller outputs and valve force, the board allows analog positioning or pressure control inside industrial automation systems. The module follows the 100 × 160 mm card format and connects to cabinet wiring through a 16-pole terminal strip, simplifying rack installation in both retrofit and new builds.
During operation the amplifier draws a nominal supply of 24 V DC and its electronics can consume up to 1.8 A, which translates to a peak power demand of 50 VA. The command stage accepts a bipolar input and produces a full-scale reference of +6 V. Inside the control loop, this is translated into an output gradient of 1 mV/mA, simplifying calibration because each milliampere of solenoid current corresponds to a predictable millivolt on the monitor test point. A status LED provides immediate visual feedback on card enable, and the lack of a front plate leaves the trimmer potentiometers accessible for tuning while the card remains seated in the rack.
Safe limits are enforced by the undervoltage threshold at 22 V and an overvoltage cutoff at 35 V, so the board continues to regulate correctly when the cabinet supply fluctuates within this window. Line protection is provided by a 2.5 A slow-blow fuse mounted on the carrier, while the output driver is capable of delivering up to 1.6 A to the connected proportional solenoid. The internal ±9 V regulated rails stabilize the analog sections, and the standardized card geometry with the 16-pole terminal supports orderly rack wiring.
Frequently Asked Questions about VT-VSPA1K-1-1X-002-15SEC:
Q: What supply voltage is required for the VT-VSPA1K-1-1X-002-15SEC amplifier?
A: The VT-VSPA1K-1-1X-002-15SEC operates on a supply voltage of 24 V DC.
Q: What is the maximum solenoid current that the VT-VSPA1K-1-1X-002-15SEC can provide?
A: This proportional amplifier has a maximum solenoid current output of 1.6 A.
Q: What type of connection does the VT-VSPA1K-1-1X-002-15SEC amplifier use?
A: A 16-pole terminal strip is used for electrical connections on this model.
Q: What is the regulated voltage output on the VT-VSPA1K-1-1X-002-15SEC?
A: The VT-VSPA1K-1-1X-002-15SEC has a regulated output voltage of ±9 V for its operation.
Q: What fuse rating is specified for the VT-VSPA1K-1-1X-002-15SEC?
A: A 2.5 A slow-blow fuse is required for protecting this amplifier.
