Code 701936: Tool ID system: Code carrier not available
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Tool ID system: Code carrier not available 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
An error occurred with the tool identification system when reading/ writing data from the code carrier. Code carrier is not present. Code carrier is not correctly in its working position. The Profibus module has a malfunction. Operation is aborted. Read-in stop on channel 2 (loader). Error messages Tool identification Tool ID system: Code carrier not available 1. Check whether there is a correct code carrier in the tool. Check the position of the positioning cylinder, tool identification system, working position. Example: Distance and alignment of the write/read head with respect to the code carrier. Check Profibus module for the tool identification system. 2. Once the malfunction has been remedied, press [RESET] key Message is cleared.
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 701936 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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