Code 154: ZERO RET. NOT ALLOWED
Issue Description & Safety Warning
The Mazak Mazatrol Matrix CNC has triggered a critical ZERO RET. NOT ALLOWED 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: E — NC equipment (system hardware/software error) Stopped status: L — Operation continued Clearing procedure: S — Press clear key Display colour: Blue On-screen parameters (shown in parentheses): G68 MODE Cause: Zero-point return mode has been selected during three-dimensional coordinate conversion. Action: 1. Select an operation mode other than the zero-point return mode. 2. To execute manual zero-point return, cancel three-dimensional coordinate conversion mode.
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 154 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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