VT-VSPA2-50-1X-T1-001 Bosch Rexroth Indramat
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MPN: R900955071
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The Bosch Rexroth Indramat VT-VSPA2-50-1X-T1-001 is a proportional amplifier card in the VT-VSPA Proportional Amplifiers series. It features a supply voltage of 24 VDC and a maximum solenoid current of 1.5 Amps. The card measures 100 by 160 millimeters and offers command input ranges of ±9 V and ±6 V.
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Product Description:
The VT-VSPA2-50-1X-T1-001 is a plug-in proportional amplifier card manufactured by Bosch Rexroth Indramat within the VT-VSPA Proportional Amplifiers series. Mounted in Eurocard racks, the module conditions command voltages and supplies controlled current to proportional solenoids, letting PLCs or motion controllers vary hydraulic valve positions without direct high-power wiring. In automation systems, this card sits between low-level control electronics and the 24-volt power domain of hydraulic actuators, translating differential input signals into a steady, dithered current that improves valve linearity and repeatability. This arrangement lets control electronics manage hydraulic motion without driving the valve coil directly. The dithered output also helps the valve respond more smoothly during fine adjustments and repeated cycling.
The card is powered by a nominal 24 VDC supply and draws less than 1.2 A during operation. Internally, a chopper stage delivers up to 1.5 A of solenoid current and is modulated at 220 Hz ±10% to reduce hysteresis. Differential command inputs accept signals up to ±10 V, while inputs 1 through 4 scale to ±9 V and input 5 scales to ±6 V. The input load is 100 Ω in current mode, and the differential input resistance is 100 kΩ when voltage driven. An enable line becomes active above 8.5 V, bias current can be trimmed around 50 mA ±25% for valve preload, and a 2.5 AT fuse provides fault protection. The board also has one ramp time channel for smoothing command steps without external circuitry.
The auxiliary output delivers ±9 V ±1 % for sensor reference, which simplifies local signal conditioning around the valve electronics. With a form factor of 100 × 160 mm, the card fits DIN 41612 B-connectors and occupies little cabinet depth in standard Eurocard racks. Power dissipation stays under 30 VA, which helps limit heat buildup in dense control assemblies. Its compact dimensions also make it suitable for cabinets where several amplifier and interface cards are installed side by side.
Frequently Asked Questions about VT-VSPA2-50-1X-T1-001:
Q: What supply voltage is required for the VT-VSPA2-50-1X-T1-001 amplifier?
A: The VT-VSPA2-50-1X-T1-001 proportional amplifier operates with a supply voltage of 24 VDC.
Q: What is the maximum solenoid current supported by the VT-VSPA2-50-1X-T1-001?
A: This amplifier supports a maximum solenoid current of 1.5 A for output operation.
Q: What are the dimensions of the VT-VSPA2-50-1X-T1-001 amplifier card?
A: The card size for this model is 100 x 160 mm, allowing it to fit into standard rack systems.
Q: How much power does the VT-VSPA2-50-1X-T1-001 amplifier consume?
A: Typical power consumption for this amplifier is less than 30 VA during operation.
Q: What fuse rating is required for the VT-VSPA2-50-1X-T1-001 amplifier?
A: The fuse rating for this model is 2.5 AT, ensuring appropriate circuit protection.
