VT-VSPA2-50-10/T1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-VSPA2-50-10/T1 is part of the VT-VSPA Proportional Amplifiers series and weighs 0.17 kilograms. This amplifier operates at 24 VDC with an upper voltage limit of 35 V and a lower limit of 18 V. It features a 2.5 A power output stage and uses a 48-pin DIN 41612 F connection type.
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Product Description:
The VT-VSPA2-50-10/T1 is a plug-in proportional amplifier card produced by Bosch Rexroth Indramat for the VT-VSPA Proportional Amplifiers series. Installed in a valve control rack, the card converts low-level command voltages into regulated coil currents so proportional directional or pressure valves follow a reference signal with minimal hysteresis. By handling signal conditioning on-board, it frees the PLC or motion controller from high-power tasks and enables closed-loop hydraulic actuation in presses, molding machines, material-handling axes, and other systems that require smooth valve response during changing load conditions.
The module operates from a stabilized supply of 24 VDC, drawing power through a backplane connector while remaining within its 18 V low limit for undervoltage tolerance. Physical dimensions of 100 × 160 mm match a standardized Eurocard slot, and the signal and power lines terminate on a 48-pin DIN 41612 F header that mates directly with Rexroth system racks. A dedicated output stage rated at 2.5 A produces magnet drive current without external boosters, and the analog reference channel sees a 100 Ω input load so voltage sources can be paralleled without drift. Within that operating window, the board conditions spool-position commands and compensates for valve nonlinearities so the connected hydraulic valve responds more predictably during changes in load and direction.
The control range accepts a differential command of ±10 V, giving symmetrical forward and reverse flow setpoints. A feedback loop limits the regulated output current to 25 mA for stable valve positioning, and the rate of change can be tailored with an external ramp resistor of 10 kΩ to match acceleration profiles to hydraulic cylinder size. For installations where bus voltage may rise, the circuitry remains protected up to an upper threshold of 35 V; beyond this point, the fuse and surge components isolate the card and prevent thermal damage to the power transistors and adjacent rack electronics.
Frequently Asked Questions about VT-VSPA2-50-10/T1:
Q: What connection type does the VT-VSPA2-50-10/T1 proportional amplifier use?
A: The VT-VSPA2-50-10/T1 utilizes a 48-pin DIN 41612 F connection type for easy integration into control systems.
Q: What is the operating voltage for the VT-VSPA2-50-10/T1 amplifier?
A: This amplifier operates on a supply voltage of 24 VDC, ensuring stable performance with industrial power systems.
Q: What is the power output stage rating for the VT-VSPA2-50-10/T1?
A: The VT-VSPA2-50-10/T1 features a power output stage rated at 2.5 A for reliable control of proportional valves.
Q: What is the command value output range of the VT-VSPA2-50-10/T1?
A: This model supports a command value output of ±10 V, providing flexible control signal capability.
Q: What are the card dimensions for the VT-VSPA2-50-10/T1 proportional amplifier?
A: The VT-VSPA2-50-10/T1 card measures 100 x 160 mm, making it compatible with standard rack sizes.
