Code 702230: Check tool revolver reference point (sensor=1 == place 1)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Check tool revolver reference point (sensor=1 == place 1) 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 determined that tool place 1 is in the machining position of the tool revolver and the PLC input signal "Tool revolver reference point" is registered. It was determined that tool place 1 is not in the machining position of the tool revolver and the PLC input signal "Tool revolver reference point" is not registered. Follow-up message Tool revolver slip clutch not engaged or Tool in the tool revolver not defined. Causes The error has the following effect: Feed Stop No axis movements possible. "Spindle Stop" Tool spindle is stopped. Speed no longer possible. 1. Put tool revolver at tool place 1 with manual functions. 2. Check the reference point. 3. PLC input signal "Tool revolver reference point" must not be registered. 4. Once the malfunction has been remedied, press [FEED 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 702230 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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