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Code 17202: [Channel %1: ] Block %2 deleting magazine data not possible

Issue Description & Safety Warning

The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 deleting magazine data not possible 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

Parameters: %1 = Channel number %2 = Block number, label Definitions: An attempt was made to delete magazine data which cannot currently be deleted. A magazine with the 'tool in motion' status active cannot be deleted. A tool adapter which is currently allocated to a magazine location cannot be deleted. A tool adapter cannot be deleted if MD18104 $MN_MM_NUM_TOOL_ADAPTER has the value -1. Reaction: Correction block is reorganized. Interface signals are set. Alarm display. Remedy: If an attempt to delete a magazine fails $TC_MAP1[ m ] = 0; Delete magazine with m=magazine no. $TC_MAP1[ 0 ] = 0; Delete all magazines $TC_MAP6[ m ] = 0; Delete magazines and all thei r tools you must ensure that the magazine does not have the 'tool in motion' status at the time of the call. If an attempt to delete a tool adapter fails $TC_ADPTT[ a ] = -1; Delete adapter with number a $TC_ADPTT[ 0 ] = -1; Delete all adapters then the data association with the magazine loca tion or locations must first be canceled with $TC_MPP7[ m,p ] = 0; m = magazine no., p = no. of the location to which the adapter is assigned. Program Continuation: Clear alarm with NC ST ART or RESET key and continue the program.

Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)

Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.

About Siemens SINUMERIK 840D CNC Alarms

Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 17202 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.

Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.

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