Code 794: HEAD ANGLE INCORRECT
Issue Description & Safety Warning
The Mazak Mazatrol Matrix CNC has triggered a critical HEAD ANGLE INCORRECT alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Type of error: B — Registered data (the program or tool data includes an error) Stopped status: I — Reset stop Clearing procedure: O — Eliminate cause -> press reset key Display colour: Red On-screen parameters (shown in parentheses): WNo., UNo., SNo. Cause: When M Pro system is used in ATC (BA47 = 0) turret type machines with B-axis (BA48 = B), the direction of “part to be machined” set with the turning drilling unit does not match with the B-axis angle set with the index unit. Action: Reset the B-axis angle for the index unit defined prior to setting the turning drilling unit to either 0 or 180 degrees.
Source: Mazak Mazatrol Matrix — Parameter List, M-Codes, Alarm Manual (Section 3 Alarm)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Mazak Mazatrol Matrix CNC Alarms
Mazak controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 794 on the Mazatrol Matrix CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Mazak's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 714 Mazak Mazatrol Matrix CNC codes.
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