HR082 Programmable Logic Controller: Advanced Industrial Automation Solution

16. februar 2026

Pre-shipment Inspection Record: This document details the visual and technical inspection of the HR082 Programmable Logic Controller: Advanced Industrial Automation Solution. All product photos and testing videos below are original materials captured first-hand by the Koeed technical team in our warehouse prior to dispatch.

What this delivery is: a Mitsubishi HR082 circuit board — board number BN638A048H01 — from the BN-series electronics that Mitsubishi builds for its MELDAS/MDS CNC systems, used, graded 80% (八成新) per the record, with a 3-month warranty, 1 kg, received 2025-12-09. The listing title that came with this article says PLC, and that is wrong, plainly: this is not a programmable controller but a printed circuit board from inside Mitsubishi CNC drive electronics — the photos settle it, and the article is written from the board itself.

Reading the board

Two markings identify it: the front face carries the Mitsubishi diamond logo over a white HR082 MADE IN JAPAN label, and the reverse silk reads BN638A048H01 — the BN prefix is Mitsubishi CNC board numbering, the family that MELDAS controls and their MDS drive units draw from. The board is built as a card that plugs into a chassis: a 64-pin Eurocard connector along one edge, metal rails on the flanks that ride the chassis guides, and a spring clip at the end. The working side is a power-conditioning layout: fifteen-plus Nichicon PJ(M) electrolytics (2200 µF/50 V and 470 µF/50 V banks with smaller 10 V and 16 V cans), a switching transformer, an AMIP D-3100 relay, status LEDs, and an EMG terminal group (EMG 3-2-1 with CF01) that carries the emergency-stop chain. The reverse is the channel side: five labelled drive sections A through E, each with its QFP driver and support passives, plus YD12 supervision circuitry and F2/F3 fusing. Taped to the middle sits a cylindrical lithium cell in its yellow holder — the absolute-position backup battery, wired by red/black leads to a small plug — so axis positions survive power-off exactly as the MELDAS family expects.

Item	Value on the board / in the record
Product	Mitsubishi HR082 circuit board, board number BN638A048H01 (BN-series MELDAS/MDS CNC electronics) — not a PLC
Front marking	Mitsubishi diamond logo; HR082 / MADE IN JAPAN label
Reverse marking	BN638A048H01; drive sections A/B/C/D/E; YD12, F2/F3 legends
Connectors	64-pin Eurocard edge connector; chassis guide rails and spring clip; black 3-pin + two white Molex-type plugs; EMG 3-2-1 / CF01 terminals
Components	Nichicon PJ(M) electrolytics (2200 µF/50 V, 470 µF/50 V, 680 µF/10 V); switching transformer; AMIP D-3100 relay; status LEDs; absolute-position lithium cell in yellow holder
Condition / quantity / weight	Used, 80% grade (八成新), 3-month warranty; 1 pc; 1 kg; received 2025-12-09

Fitment notes

This is a pull from service, so the first job is the battery: the absolute-position cell on a used board has usually spent part of its life, and a dead cell means the machine loses axis origin data at the worst moment. Check or replace it before the board goes back into a machine, and make the swap with control power on (per Mitsubishi practice) so the position memory never goes dark. Electrically, match by the full board number — BN638A048H01, not the HR082 front label alone, since Mitsubishi used HR-prefixed labels across related revisions. The five A–E sections tell you the board serves a five-channel stage of the drive electronics; if your chassis shows fewer channels populated, that is normal for the family, not a defect. For the cable that runs between this electronics family and its motors, see our 5 m M64-system encoder cable record.

Photos

Board reverse full view — The reverse as received: BN638A048H01 silk along the bottom, the five drive sections A through E down the right edge, YD12 supervision circuitry and F2/F3 fusing to the left, and the battery's blue QC sticker mid-board.

Front face with HR082 label — The working side: the Mitsubishi diamond and HR082 / MADE IN JAPAN label between the electrolytic banks, FDK relay, transformer and the yellow absolute-position battery holder at right.

Inspection video.

Eurocard edge and capacitors — The card edge: 64-pin Eurocard connector along the top, the PJ(M) capacitor banks — 2200 µF/50 V grey-sleeved and 470 µF/50 V below — standing in two rows.

Component side angled — Angled across the component side: the transformer, D-3100 relay, status LEDs, the white harness plugs and the EMG terminal group at the left edge.

Bottom-edge plugs — The board's bottom edge: the black 3-pin plug, two white Molex-type headers, and the chassis spring clip at the corner — the connections that stay outside the card cage.

Front face landscape — Landscape view of the front: the full electrolytic bank, HR082 label, battery in its holder with red and black leads, and the card-cage rails at both ends.

Battery close-up — The absolute-position battery in close: cylindrical lithium cell in the yellow holder, the UN38.3 shipping print and handling warnings on the wrapper, leads to its inline plug.

Reverse channel sections — The channel side in close-up: BN638A048H01 silk, sections A through E with their QFP drivers and support networks, the RN5VD26AA supervisor IC, and ZD3/ZD4 zeners mid-board.

Board angled full view — The whole card at an angle: capacitor banks, battery, transformer, the 64-pin connector and the guide rails that slot it into the chassis — a service pull photographed as delivered.

Related products on KOEED

Related read from the same electronics family: the 5 m encoder cable for the Mitsubishi M64 system.

Need this BN638A048H01 board, a battery for it, or a matching check against your MELDAS chassis? Send the board number off your unit — we confirm stock with photos.

Request a quote