700050 — Alarm 700050 (Reference point of Z axis not reached) Diagnostic Tree

This alarm code (700050) is not found in the standard Siemens source manuals; 70xxxx series alarms are typically machine builder (OEM) specific PLC alarms (the 'Reference point of Z axis not reached' message indicates that the Z axis has not yet been referenced). Please select Reference (REF) mode on the machine control panel and manually initiate the reference point approach (homing) for the Z axis.