700026 — Alarm 700026 (Tool change timeout) Diagnostic Tree

This alarm code (700026) is not found in the uploaded standard Siemens source manuals. The 70xxxx series alarms in the NC/PLC interface are typically machine builder (OEM) specific PLC alarms (the 'Tool change timeout' message usually indicates that the tool change cycle did not complete within the predefined time limit, often due to a mechanical jam, sensor failure, or pneumatic/hydraulic issue). Please check the tool changer mechanism (turret/magazine) and sensors, and consult the machine manufacturer's documentation if the issue persists.