Code 702341: 5th axis not locked
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical 5th axis not locked 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
Function "Clamp 5th axis clamping" was output, but the axis clamping is not yet clamped or signals that it is still unclamped. PLC input signal "5th axis clamping clamped" is not registered, or "5th axis clamping unclamped" is still registered. Read disable Feed Stop If the signals return to a correct state within a time window, the program run is continued. After the monitoring time has elapsed, the machine stops. 1. Check the PLC input signal "5th axis clamping clamped". 2. Check the PLC input signal "5th axis clamping unclamped". 3. Check the PLC output signal "Clamp 5th axis clamping". 4. Check pressure sensors and valves. Error messages Axes (>Z) 5th axis not locked 5. As soon as the malfunction is remedied, press one of the following keys: [FEED START] [CYCLE START] [RESET] Message is cleared. Error messages 600509 and 600609 were allocated to 702333 and 702341 starting in 01/2006. In the case of old SW versions, however, these are still displayed.
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 702341 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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