Bosch Rexroth VT-MACAS-500-10V0I – Analog valve amplifier card for precise servo‑hydraulic control

The Bosch Rexroth VT-MACAS-500-10V0I is a plug-in amplifier/controller card typically used to drive and tune proportional or servo-hydraulic valves with analog command and feedback signals. You might also see it written as VT‑MACAS‑500‑10/V0/I in some catalogs. From my experience, this series is chosen when teams want stable, repeatable motion or pressure control without adding a full PLC or fieldbus-based axis controller. It lives in a 19-inch subrack, handles ±10 V command signals, and provides current-controlled valve outputs with onboard trimming and ramping—handy for presses, test benches, and materials handling hydraulics.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: typically 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Analog command handling (±10 V) – Works cleanly with common motion controllers and test rigs that output ±10 V, reducing integration friction.
• Current-controlled valve output – Helps keep valve behavior consistent across temperature and coil tolerance changes; typically the “I” suffix indicates current drive.
• Built-in ramps and trims – Onboard potentiometers for zero/span and ramp time make commissioning faster; you can dial in smooth starts and stops.
• Feedback capability – Versions in the MACAS family commonly support voltage or LVDT-type position feedback for closed-loop stability in many cases.
• Eurocard plug-in format – Slides into a 19″ subrack, easing swaps and keeping spares strategy simple.
• Status indication & test points – You might notice front test sockets/LEDs that make signal tracing and maintenance straightforward on the shop floor.
• Robust EMC behavior – Rexroth electronics tend to be well-shielded, which pays off around high-power hydraulics and drives.

Technical Specifications

Where it fits best

Typical use cases include hydraulic presses needing smooth force ramps, materials testing frames where a clean ±10 V profile generates repeatable motion, and retrofit projects replacing older proportional valve drivers while keeping the existing PLC. A customer in plastics processing told me they appreciated the MACAS card because “tuning the ramp and null took minutes, and we were back to full-rate production before lunch.”

Related or Supporting Products

• Bosch Rexroth VT-HACD-1-… – Digital axis controller with fieldbus (Profibus/Profinet) and full parameter sets; a step up if recipe control and diagnostics are priorities.
• Bosch Rexroth VT-3002-… subrack – 19″ rack that houses VT-series cards; required for backplane power and I/O distribution.
• Bosch Rexroth VT-PS02 or equivalent 24 VDC supply – Stabilized supply sized for the number of cards and coil loads in the cabinet.
• Bosch Rexroth 4WRLE / 4WRKE proportional valves – Commonly paired with MACAS-type amplifiers for motion or pressure control.
• Shielded signal cables and LVDT sensors – If you’re closing the loop on position, a compatible LVDT and proper shielding make a noticeable difference in noise immunity.

Installation & Maintenance

• Cabinet & environment – Mount in a 19″ control cabinet (IP54 or better). Keep 30–40 mm spacing for airflow; avoid mounting next to high-frequency drives without a metal divider.
• Wiring practices – Use shielded twisted pairs for command/feedback. Ground shields at one end only. Route coil cables away from mains. Maintain a clean protective earth for the rack.
• Commissioning steps – Verify 24 VDC stability; center the valve with the null trim; set zero/span for the command input; add ramp times to prevent hydraulic shocks; check monitoring points with a DMM or scope.
• Safety precautions – De-energize before inserting/removing cards. After wiring changes, perform a low-pressure functional test before going to rated pressure.
• Routine maintenance – Dust off the rack quarterly, re-torque terminals annually, and re-check zero/span after valve replacement. Firmware updates aren’t applicable on this analog card, which keeps upkeep simple.

Quality & Certifications

• CE conformity (EMC/Low Voltage) – Typical for Bosch Rexroth control electronics used in industrial cabinets.
• RoHS compliance – Components and finishes in this series are generally RoHS-compliant.
• UL/CSA – Component recognition is often available depending on the rack/assembly; specifics can be confirmed against your build.
• Manufacturer policy – Bosch Rexroth typically provides a standard product warranty via channel; we back it with a 365-day warranty on supply.

If you’re replacing a legacy amplifier or standardizing a hydraulic control drawer, this VT-MACAS-500-10V0I seems to be a solid, low-drama choice. Send over your valve type and signal requirements, and we’ll validate compatibility and the correct subrack/power setup before you order.