Code 700241: Tool engaged in wrong position spindle (1)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Tool engaged in wrong position spindle (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
During the tool clamping operation, the "Tool positioned and engaged" sensor does not signal. The tool to be changed in is declared as a "positioned tool" in the tool management system. If the signals are OK again within a certain monitoring time, the machine continues to run again immediately. After the monitoring time has elapsed, the machine stops and the error has to be acknowledged. Strategy procedure: Several attempts are made to engage the tool "positioned". If, after this attempt, "positioned" engagement is still unsuccessful, the machine stops. Read-in blocking and feed stop. 1. Press [RESET] key. Program will be aborted. 2. Check the tool square face under the spindle (chips etc.). 3. Change tool in again. 4. In manual input mode, first change in another tool, and then the positioned tool again. 5. Check the sensor and the PLC input signal "Tool positioned" and engaged. The diagnosis overview of the signals can be found under: Chapter 2.2 ‘Tool changer diagnostics menu’ on page 11
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 700241 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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