Code 700746: Turning has not been deactivated --> Switch off main switch
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Turning has not been deactivated --> Switch off main switch 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
The function "Turning“ was not correctly deactivated for some reason. The coordinate system is still turned. Error messages Swivel head Turning has not been deactivated --> Switch off main switch Feed Stop, since the coordinate system was not correctly switched. This is a serious error and can only be remedied with [Main switch OFF]. and [Main switch ON] If the error is still there, it must be checked whether ASUP_1_M is in the directory of the manufacturer cycles, and whether the _Reset cycle was called in this. When the control is started up, ASUP is run and the coordinate system is put in its original state.
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 700746 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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