This document provides a systematic, easy-to-scan alarm list for Mori Seiki EX series CNC machines. It groups alarms by category, gives typical causes, and suggests first-line troubleshooting steps. Use this as a quick-reference; follow your machine’s manual and safety procedures for detailed diagnostics and repairs.
You will need your machine's serial number. Once logged in, go to: Documentation → Electrical Diagrams → Alarm List (PLC Messages) . The EX list is usually in Appendix B of the maintenance manual. mori seiki ex alarm list
Over 60% of EX alarms are preventable. Follow this monthly checklist: This document provides a systematic, easy-to-scan alarm list
On most modern Mori Seiki machines (such as those with Fanuc 32iB or MSG-501 controls), follow these steps to save the history: Insert a USB Drive : Locate the USB port on the operation panel. Navigate to System Menu : Press the Find Alarm/History You will need your machine's serial number
These are the most frequent codes operators will encounter on the EX series.