Code 701941: Tool gate, door not closed
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Tool gate, door not closed 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 tool gate of the background magazine is not closed. It is not possible to execute any functions of the tool loader. 1. Close the tool gate of the background magazine. 2. Check the PLC input signals "Tool gate not closed (tool gripper position)" or "Tool gate not closed (loading position)".
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 701941 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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