Product Description:

The VT-MRPA2-2-1X/V0/0 is a control module produced by Bosch Rexroth Indramat within the VT-SWMA Modules series. It serves as an interface between a motion controller and a matched hydraulic valve, converting logic-level commands into proportional coil currents while relaying spool position back to the host system. By integrating amplification and monitoring in a single rail-mounted unit, the device simplifies panel wiring and supports closed-loop positioning in presses, injection machines, and other automated equipment. This arrangement lets the host controller command smooth valve movement while the module supervises signal consistency during operation.

Wiring is connected through screw terminals, allowing power, feedback, and coil leads to be connected without special tools. The electronics operate from a regulated 24 VDC supply so the unit can share the same low-voltage bus that powers sensors and relays. Installation uses a DIN rail, which supports fast mounting and compact cabinet layouts. Two separate current stages drive exactly 2 solenoids, giving independent control of each coil on a bidirectional valve. For closed-loop accuracy, the card processes analog position feedback, enabling real-time correction of spool displacement and reducing hysteresis caused by temperature or load shifts.

The card matches the electrical and hydraulic characteristics of Rexroth's 4WRE 10 -2X family, ensuring that pilot currents, dither frequency, and transducer scaling align with the intended valve behavior. Because it is intended for proportional directional valves, the control circuit uses ramp generators and gain trims suited to flow-dependent tuning rather than pressure limiting. Despite incorporating power stages and signal conditioning, the housing weighs only 0.22 kg, reducing panel mass and vibration stress on adjacent components. The plug-in board is supplied as a standalone module, allowing it to function as an independent control card within the cabinet.