Code 971: CANNOT USE TOOL TIP PT CONTROL
Issue Description & Safety Warning
The Mazak Mazatrol Matrix CNC has triggered a critical CANNOT USE TOOL TIP PT CONTROL 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: J — Single-block stop Clearing procedure: P — Press reset key Display colour: Red On-screen parameters (shown in parentheses): WNo., NNo., BNo. Cause: 1. A command of tool tip point control is given under incompatible modal conditions. 2. A G43.5 command is given in spite of the selection of the workpiece coordinate system for programming. 3. Under selection of the G-code system for turning machines, a command of tool tip point control is given with the parameter setting “F161 bit 1 = 0 (Geometric offset by logically shifting the coordinate system).” 4. A command of circular interpolation is given under the mode of G43.5 or with the table coordinate system selected for programming. Action: 1. Check the current modal conditions and cancel the unsuitable mode. 2. Use the other preparatory function G43.4, or select the table coordinate system for programming. 3. Set F161 bit 1 to “1” (Geometric offset by physically shifting the tool). 4. To use circular interpolation, give a G43.4 command, or select the workpiece coordinate system for programming.
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 971 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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