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Code 700352: Tool holder not correctly seated in tool magazine (1)

Issue Description & Safety Warning

The Chiron Siemens-Control CNC has triggered a critical Tool holder not correctly seated in tool magazine (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

A tool change is pending, but the check has indicated that there is a tool at the change place. This was previously incorrectly stored into the magazine. There is no corresponding bit "Tool place correctly occupied". 1 = Magazine place correctly occupied. 0 = Tool not present or not correctly inserted. As soon as there is a tool in the magazine, the corresponding bit "Magazine place correctly occupied" must be set in addition. The tool change is stopped and is not carried out further. Cause 1: 1. Tool change must be aborted. 2. Press [TOOL CH HOME POS.] key. Tool changer moves to home position. 3. Switch to NC operating mode "Manual mode". 4. Move magazine place to the loading position and check. 5. Remove the tool and store it in correctly. A tool was inserted in the loading position. Here, it was detected that a tool is present, but the "Tool correctly inserted (loading position)" switch does not signal. It is not possible to move the tool magazine. The indicator light "Enable tool loading" flashes. 1. Check whether the tool at the loading position is "correctly" in the tool magazine 2. Check whether the tool magazine is in the correct position. With the tool removed, the indicator light [Enable tool loading] is permanently illuminated as soon as the magazine is in its correct position. 3. Check the proximity switch "tool correctly inserted (loading position)" and the PLC input signal. 4. Check the proximity switch "Magazine place free (loading position)" and the PLC input signal. Possible combinations: Tool removed: Magazine place free = [ 1 ] + tool correctly inserted = [ 0 ] Tool inserted: Magazine place free = [ 0 ] + tool correctly inserted = [ 1 ] 5. Once the malfunction has been remedied, the movement command for the tool magazine is enabled again. Cause 2: Error messages Tool change Tool holder not correctly seated in tool magazine (1)

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 700352 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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