Code 510127: No enable for tool change
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical No enable for tool change 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
Either a tool change ( M6 / M16 ) was programmed or the manual tool change function was activated with the [MANUAL TOOL CHANGE] key, but there is no enable for it. The error has the following effect: Feed Stop No axis movements possible. Read disable Control reads no further program blocks into memory. Desired function is not executed. 1. Switch to "Manual mode". 2. Press [RESET] key. Message is cleared. Observe additionally pending error messages. The release for “Tool change“ remains blocked if: the service function "M88“ (tool changer) is active. Service function M555/H55 (setting mode tool changer) is active. Service function M90 (workpiece changer) is active. the axes are located in the area of the central splash guard. the 4th/5th axis is in the blocked area of the tool changer. The Z-axis is not in the tool changing area for manual tool changing (> -10.000).
Source: CHIRON Error Message Overview, all series (Siemens control, V2.0.6, 2012)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Chiron Siemens-Control CNC Alarms
Chiron controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 510127 on the Siemens-Control CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Chiron's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 545 Chiron Siemens-Control CNC codes.
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