Code 702343: Counterbearing 5th axis not released
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Counterbearing 5th axis not released 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
A movement command has been output for the 5th axis but the counterbearing of the corresponding axis is not yet released and still registers locked. The corresponding PLC input signal "5th axis counterbearing clamped" is still registered. Feed Stop Read disable If the signal is OK again within a certain monitoring time, the machine continues to run again immediately. After the monitoring time has elapsed, the machine stops. 1. Check pressure switch "5th axis counterbearing clamped". 2. Check the PLC input signal "5th axis counterbearing clamped". 3. Check the PLC output signal "Clamp 5th axis counterbearing clamping". 4. Check valve "Clamp 5th axis counterbearing". 5. As soon as the malfunction has been remedied, press [FEED START] or [CYCLE START] 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 702343 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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