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Code 701750: Tool pocket occupied 1

Issue Description & Safety Warning

The Chiron Siemens-Control CNC has triggered a critical Tool pocket occupied 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

The tool magazine should travel to the spindle, but there is already a tool at the magazine place. (This situation normally only occurs if previously a serious operating fault of the tool changer has taken place). A tool was deposited at the wrong place while the magazine was being loaded. An incorrect spindle tool was defined. PLC input signal “magazine place free“ is not present. The error has the following effect: Feed Stop No axis movements possible. Read disable Control reads no further program blocks into memory. If the sensor signals are correct within a monitoring period, the program run is continued. After the monitoring time has elapsed, the machine stops. 1. Check whether there is a tool at the transfer place. If there is no tool at the transfer place, the PLC input signal "magazine place free" must be checked. The spindle tool and the tool in the magazine must be checked if there is a tool at the transfer place. Remove the tools and insert correctly if necessary. NOTICE! Care must be taken here that the tools are deposited in the correct magazine place. 2. 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 701750 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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