Code 701440: Min. lubrication not selected
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Min. lubrication not selected 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
Function "minimal lubrication" was programmed ( M501 M516 ), but "minimal lubrication" has meanwhile been deactivated since then with the key. Feed Stop in automatic mode. 1. Select minimal lubrication with the key. 2. Press [FEED START] or [CYCLE START] key at the same time. Message is cleared and the machining program can be continued. The function "minimal lubrication" was programmed ( M501 M516 ), but the option "minimal lubrication" is not activated. Cause 1: Cause 2: Error messages Minimal lubrication Min. lubrication not selected Feed Stop in automatic mode. 1. Check whether the option "minimal lubrication" was activated at all. 2. As soon as the malfunction has been remedied, press [FEED START] or [CYCLE START]: Message is cleared and the machining program can be continued.
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 701440 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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