The Panasonic CNC-4S card is a replacement control board for RH2, RH3 and RHU2 automated insertion machines — the AI stage of a PCB assembly line, where axial and radial through-hole components are placed and clinched. The board sits in the machine's control card rack and goes in as a direct replacement for the CNC-4S card already fitted, so a line that has stopped on a CNC-related fault can be brought back without hunting for a model-specific board. Buyers are typically PCB assembly plants, EMS contractors and SMT pick and place machine manufacturers who need the right board identified and moving toward the line quickly. If your maintenance file lists another RH variant, the machine model is the first thing to check.
| Manufacturer | Panasonic |
| Part number | X984-205 |
| Component type | CNC-4S control card |
| Machine compatibility | RH2, RH3 and RHU2 automated insertion machines |
| Equipment class | Automated insertion (AI) assembly lines |
| Card position | Machine control card rack |
| Supply type | Replacement spare part |
| Product group | Motors, drivers and boards |
Inside an RH2, RH3 or RHU2 cabinet, the CNC-4S board carries the CNC control portion of machine motion — the signals that drive and index the insertion head so each lead reaches the correct hole. It works alongside the other cards in the same rack, which is why a fault on this board can stop the cycle even when the rest of the machine looks healthy. The board runs for the whole shift in a warm cabinet, so when plant engineers trace a CNC control fault to this card, fitting a replacement is normally the quickest way back to production. There is no published service interval for it; maintenance teams replace the board when a fault is traced to it, or keep it as a spare for a machine that cannot be left waiting.
ZJ-SMT supplies Panasonic SMT and PCB assembly equipment and spare parts to manufacturers worldwide. Our range covers pick-and-place machines, axial and radial insertion equipment, solder paste inspection systems, and feeder spare parts, with both new and used options available. We support bulk orders, and machine condition and availability are confirmed with you before ordering. Whether you are expanding a line, replacing a worn feeder part, or sourcing equipment for a new project, send us your model numbers and our team will come back with a suitable solution and quotation.
It fits the RH2, RH3 and RHU2 machines — the AI insertion side of a PCB assembly line. If your maintenance file lists a different RH variant, ask us to check the machine model before you order.
Start with the simple checks: power down, reseat every connector on the board and confirm the card is sitting fully in its rails. Look for heat marks or swollen parts on the card itself. If the alarm comes back after that, or appears only once the cabinet has warmed up, a replacement board is the practical way to rule the card in or out.
Yes. The same card number covers all three machine families, so a plant running a mixed RH floor can keep one board instead of three. Store the spare in an anti-static bag, label it with the card number and keep it somewhere dry, so it can go straight into the rack when a machine stops.
Yes — record them while the original card is still in place, before anything is unplugged, and keep the old board until the machine has run a full shift. If the same fault comes back, the original card and the settings taken from it are the quickest reference for your service team.
Work from the number printed on the faulty board. RH machines carry other cards in the same rack, including sequence and I/O boards, and each has its own number and function, so the label on the board decides which part you need. If the printing is worn, a photo of the card and the rack is usually enough for us to identify it.
This board is listed for the RH2, RH3 and RHU2 machines. Other Panasonic AI platforms use their own card sets, so the machine model — not the component type running on the line — decides which board applies. If you run a mixed equipment floor, send us the models and we will confirm which cards your machines need.
