🛠️ JJ Automation CNC Forum

India's community for CNC maintenance — alarms, repairs, part identification and buying help for Fanuc, Mitsubishi, Siemens & Haas. Free to read, free to reply.

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⚡ Fanuc

Servo/spindle alarms, SRAM & battery issues, board-level questions for 0i / 16i-21i / 30i series.

🔴 Mitsubishi

M70/M80/M800 alarms, MDS drive faults, absolute encoder & zero-point procedures.

🔷 Siemens

SINUMERIK 808D/828D/840D alarms, SINAMICS F-codes, PPU/NCU questions.

🇺🇸 Haas

Classic & NGC alarms, servo/spindle troubleshooting, MAINCON/MOCON boards.

🔍 Part Identification

Reading part numbers, matching revisions, finding equivalents — post a photo, get an ID.

🔧 Repair Help

General diagnostics, display faults, buying used parts safely, workshop practices.

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📚 Also see our reference library

Complete alarm-code lists and step-by-step guides: Fanuc articles · Mitsubishi articles · Siemens articles · Haas articles

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