VT-MRMA1-1-1X/V0/0

The VT-MRMA1-1-1X/V0/0 from Bosch Rexroth Indramat is part of the VT-VSPA Proportional Amplifiers series, delivering precise proportional control in industrial automation environments. This compact module operates from a reliable 24 V DC power supply with reverse polarity protection to safeguard against miswiring. It accepts a 0–10 V or 4–20 mA input range for pressure commands and provides 0.5–5 V or 4–20 mA pressure feedback with built-in cable-break detection. The amplifier’s toolless quick snap-in installation and integrated diagnostic indicators streamline setup and commissioning.

The VT-MRMA1-1-1X/V0/0 amplifier leverages an integrated DC/DC converter to optimize internal power distribution, while its motor output stage provides a clocked control voltage output for precise DC motor actuation. Dual pressure command inputs and pressure feedback inputs both feature cable-break detection for enhanced safety. An integrated pressure switch with adjustable thresholds allows automatic monitoring of pressure limits. External logic functions, including Enable, Ready, and Position reached, conform to a 24 V digital I/O logic level for seamless interfacing with higher-level controllers.

Operational flexibility is ensured by the amplifier’s toolless quick snap-in module housing, which simplifies module exchange and maintenance without tools. Built-in diagnostic outputs, comprising two pressure switch outputs and a test jack, enable real-time fault monitoring of motor circuits and pressure transducer cables. The separate ramp time adjustment for pressure commands allows engineers to fine-tune dynamic response, minimizing overshoot and enhancing stability. Adapter support for valve component adapters ensures compatibility with a broad range of proportional valves and transducers. Rigorous EMC and safety compliance ensures reliable operation in electrically noisy industrial settings.

Engineers will appreciate the standard plug-in screw connectors, individually withdrawable, which facilitate rapid installation and serviceability. The amplifier’s polarity-protected power input and defined control pinouts for motor and pressure connections reduce wiring errors. Thanks to its robust design and versatile interfacing, the VT-MRMA1-1-1X/V0/0 can be integrated into hydraulic power units, test benches, packaging machinery, and any system requiring precise motor and pressure control. This amplifier delivers a compact, reliable solution for demanding industrial automation applications.