Product Description:

The VT-MSPA1-11-1X-V0-0 is a compact drive module manufactured by Bosch Rexroth Indramat as part of the VT-MSPA Drives series. Intended for cabinet installation, the unit supplies controlled current to proportional solenoids used in industrial actuators, enabling precise motion and force control within automated machinery. It clips on a standard DIN rail and ties into the low-voltage control network, acting as an intermediary between a command signal source and the field device. By regulating solenoid energization, it converts electrical reference signals into repeatable mechanical output for positioning tasks.

This module wires to the installation through 6 screw terminals, simplifying field wiring without plug-in connectors. Its analog command input follows a scaling of 1 mV/mA, so a 1 V differential represents a 1000 mA solenoid demand. Internal power stages are designed for a nominal supply of 24 VDC, and operation continues while the supply remains between 21 V and 35 V. The output channel is electronically limited to 1.9 A, a value matched to a coil resistance of 5.5 Ω at 20 °C to help keep copper temperature within a safe range. For smooth actuation, the built-in ramp generator can extend a rising edge to 5 s. The board fastens on a TH 35-7.5 rail to align with adjacent electronics.

Where rapid response is required, the same ramp circuit can be shortened to 160 ms, allowing the solenoid to follow fast command changes. The differential input presents an impedance of 100 kΩ, preventing noticeable loading of PLC analog outputs. With an enclosure rated at IP20, the device is intended for protected control panels and relies on natural convection through its 25 mm width, 85.5 mm depth, and 79 mm height. A mass of just 0.15 kg eases DIN-rail loading and makes the module easy to handle during service.