Code 700307: Check sensor: >magazine place free (changing position)<
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Check sensor: >magazine place free (changing 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
Tool changing was terminated, but it was established that the PLC input signal „Magazine place free (changing position)“ was active during the entire changing operation. The switch is monitored for a signal change from [1] to [0] during the tool change. Feed Stop after ending the tool change. The program should be interrupted. 1. Check the setting of the ultrasound sensor according to the setting instructions. NOTICE! Adjustment should only be carried out by trained and instructed personnel. 2. Check the PLC input signal "Magazine place free (changing position)" of the corresponding spindle. 3. Once the switch signals OK again, the error message can be cleared in "manual mode" with the [RESET] key.
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 700307 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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