Code 701947: Tool gate not in tool gripper position
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Tool gate not in tool gripper position 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
It was attempted to load/unload a tool, but the tool gate is not in the position for transferring to the tool gripper. PLC input signal "Tool gate not closed (tool gripper position)" is registered. Loading/unloading is not started. [Start loading] key flashes quickly. Error messages Background magazine Tool gate not in tool gripper position 1. Check PLC input signal "Tool gate not closed (tool gripper position)". 2. To load/unload a tool, the tool gate must be in the tool gripper position, closed and locked. 3. Put the door of the tool gate in the position toward the tool gripper and continue the operation with the [Start loading] key. The diagnostic overview of the sensor signals can be found under: Chapter 2.2 ‘Tool changer diagnostics menu’ on page 11
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 701947 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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