VMIC/GE Fanuc VMIVME-4512 – VME I/O board for industrial digital control

The VMIVME-4512 is a legacy VMEbus digital I/O module from VMIC (later GE Fanuc, now Abaco Systems). It’s typically used where reliable, isolated field I/O is needed inside a VME-based control system—think turbine auxiliaries, test stands, motion equipment interlocks, or process skids that still run on proven VME infrastructure. One thing I appreciate is how these boards tend to balance channel density with straightforward wiring through the front panel or P2 to a breakout, which reduces cabinet clutter in many cases.

If you’re maintaining an existing VME rack, VMIVME-4512 slots in as a 6U card and provides high‑reliability digital interfacing with the usual VME addressing and interrupt capabilities. From my experience, it’s chosen when engineers want stable, long-life digital outputs to drive solenoids, relays, stack lights, or contactors with a 24 VDC field supply, while keeping the controller side fully isolated.

Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express delivery: FedEx, UPS, DHL
• Condition and testing: Each unit is powered, inspected, and function-tested on a VME backplane prior to dispatch, with a test report included.

Key Features

• VMEbus 6U form factor – Installs directly into standard 6U VME backplanes; ideal for system life‑extension projects.
• Isolated digital I/O for field devices – Typically used with 24 VDC field power to switch solenoids, lamps, and relays while protecting the controller side.
• Deterministic real‑time behavior – VMEbus access and interrupt support help keep scan times predictable in most cases.
• High channel density – Suits applications where cabinet space is tight and wiring needs to stay tidy.
• Service-friendly design – Front-panel connections or P2 breakout options simplify replacement during turnarounds.
• Legacy system compatibility – Works well with existing GE Fanuc/VMIC VME CPUs and mixed-vendor VME enclosures.

Technical Specifications

Notes below reflect typical characteristics for the VMIVME‑4512 family as deployed in industrial control. Build options may vary by sub‑revision; if you share your exact board marking and front‑panel labeling, we can confirm I/O type and channel count before shipping.

Related or Supporting Products

• VMIVME-4511 – Similar digital I/O board with alternate output type; often used when relay isolation is preferred.
• VMIVME-2540 / VMIVME-2528 – TTL/industrial digital I/O variants with different voltage ranges and densities.
• Backplane accessories – VME 6U chassis, power supplies (+5 V heavy rail), and DIN-rail terminal breakouts for P2/front-panel wiring.
• If you’re migrating, an Abaco Systems digital I/O VME card can often serve as a drop-in with minor address map adjustments.

You might notice that channel counts and exact drive specs differ by sub‑model. Share your label photo and we’ll match a like‑for‑like unit or propose a compatible alternative.

Installation & Maintenance

• Cabinet and backplane – Install in a clean, ventilated 6U VME enclosure. Maintain airflow; keep intake filters clean.
• Wiring – Use the specified field supply (typically 24 VDC) with proper fusing. Separate signal and power cabling and provide surge suppression across inductive loads.
• Addressing & interrupts – Set VME base address and interrupt level per the manual or on-board selector; label settings on the bezel to speed maintenance.
• Grounding – Bond shield drains at a single point; keep field return separate from logic ground except where the design specifies.
• Routine checks – Annually verify output switching, re‑torque screw terminals, and inspect for capacitor aging or hot spots. Firmware/PLD updates are uncommon on these boards, but we can check your revision.
• Spares strategy – In many cases, customers keep one spare per 10–12 installed boards. A quick swap restores service if a channel bank goes down.

A maintenance note from a recent user: “After adding snubbers to two large solenoid valves, nuisance trips disappeared. The board itself never missed a beat.” That seems to be a common win when inductive loads are in play.

Quality & Certifications

• CE (EMC) compliance on original production units; UL component recognition typically applies at system level.
• ISO 9001 managed test and handling process on our side for incoming inspection and outbound QA.
• RoHS: legacy exemptions may apply due to original date of manufacture; we can document status on request.
• Manufacturer’s warranty on new-old-stock when applicable; otherwise our 365-day replacement/repair warranty covers tested refurbished units.