Code 144: ILLEGAL CYCLE START
Issue Description & Safety Warning
The Mazak Mazatrol Matrix CNC has triggered a critical ILLEGAL CYCLE START 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: A — Operation (a wrong key was pressed or the machine was operated incorrectly) Stopped status: I — Reset stop Clearing procedure: O — Eliminate cause -> press reset key Display colour: Red On-screen parameters (shown in parentheses): Alarm No., Cause: It was attempted to start automatic operation under the following conditions: Alarm No. Cause 0 × 101 During axis movement 0 × 102 READY lamp OFF. 0 × 103 Reset state not yet cleared. 0 × 104 – 0 × 105 Hardware overtravel not yet cleared. 0 × 106 Software overtravel not yet cleared. 0 × 107 – 0 × 108 Two or more operation modes selected. 0 × 109 During change in operation modes. 0 × 110 – 0 × 111 During search on the tape data. 0 × 112 – 0 × 113 Abnormality in temperature. 0 × 114 During selection of the foreground program. During editing on the EIA MONITOR display 0 × 115 A door opened. 0 × 116 During compensation in tandem control. 0 × 117 An alarm related to polygonal machining or hob milling not yet cleared. 0 × 118 An alarm related to safety barrier not yet cleared. Action: Remove the cause, if possible, to (re)start the automatic operation. If not, contact Mazak Technical Center or Technology Center with the information of the first item (Alarm No.) displayed in parentheses.
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 144 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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