Code 701211: Centric tensioner not activated in the tool revolver
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Centric tensioner not activated in the tool revolver 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
M410 (Clamp centric tensioner) or M411 (Unclamp centric tensioner) was programmed. No revolver place was entered for the centric tensioner in the PLC machine parameter 14510[23]. M414 (Retract index) or M415 (Extend index) was programmed, although the centric tensioner is not in the machining position of the revolver. The error has the following effect: Feed Stop No axis movements possible. Read disable Control reads no further program blocks into memory. Enter the revolver place in which the centric tensioner is located in the general machine parameter 14510[23]. 1. Put the centric tensioner in the machining position of the revolver. 2. Check whether the correct tool place has been defined for the centric tensioner and whether or not the centric tensioner is actually in the machining position. 3. Press [RESET] key. Message is cleared. Remedy 2 Cause 1: Cause 2: Remedy 1 Remedy 2 Error messages Tool revolver Centric tensioner not activated in the tool revolver
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 701211 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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