Alarm List _verified_ | Mori Seiki Ex

Mori Seiki are machine-specific (external) errors typically generated by the machine's PLC rather than the core CNC system (like Fanuc) . These alarms generally relate to physical interlocks, hardware sensors, and peripheral operations like the turret, tailstock, or lubrication system . Common EX Alarm Categories

When a sensor fails to activate within a set time, or a hydraulic pressure switch remains open, the PLC triggers an EX alarm.

Way lube level is low and needs to be refilled . Spindle and Drive mori seiki ex alarm list

Each alarm is assigned a 4-digit number (e.g., EX0001 to EX1999) and a plain English message. The list varies slightly depending on the machine model, control version (MAPPS I, II, III, IV, Celos), and optional equipment.

Attempted to run the machine while the protective door was open . Way lube level is low and needs to be refilled

Cycle started or commanded while the main spindle chuck was in an unclamped state.

CNC machines are messy places full of metal chips and oil. Proximity sensors often get covered in metal dust. Wipe down sensors near the tool changer, chuck, and doors. Attempted to run the machine while the protective

While it requires the user to understand the difference between the Fanuc control brain and the Mori Seiki machine body, once that concept is grasped, the list is incredibly effective. It reduces downtime significantly compared to machines that provide vague error messages.

Look up the EX alarm number in your Mori Seiki manual to find its corresponding X (Input), Y (Output), or F (Flag) address. By searching for this address in the ladder diagram, you can see exactly which physical sensor, switch, or relay is open and causing the fault.

Machine stops mid-cycle, message: "Tool life expired for Txx". Troubleshooting:

Triggered if the front door is opened during a cycle, or if the safety switch key is misaligned or broken.