Mori Seiki Ex Alarm List Review

This guide provides a detailed breakdown of common Mori Seiki EX alarms, their meanings, and actionable steps to resolve them. Understanding Mori Seiki Alarm Categories

1. Door Interlock & Operator Safety Alarms (EX0060 – EX0099)

The EX Alarm List is typically organized numerically, though the exact range can vary by machine series (e.g., DuraVertical, NL, NV, or MT series). The numbers themselves often carry implicit meaning:

The proximity switches on the back of the chuck cylinder are set wrong. mori seiki ex alarm list

| Alarm Code | Description | Probable Cause & Solution | | :--- | :--- | :--- | | | Chuck Clamp/Unclamp Alarm | The machine cannot verify the chuck status. • Check the proximity switches inside the spindle nose (check for chips blocking the sensor). • Verify hydraulic pressure is sufficient. | | E305 | Spindle Rotating Interlock | The chuck was opened (or attempted to open) while the spindle was rotating. • Usually a safety logic error caused by a faulty switch or trying to force the door. | | E310 | Spindle Drive Alarm | Often linked to a Fanuc drive alarm (check the amplifier screen). • Could be overheating or encoder failure. |

Errors associated with indexing the turret on lathes or changing tools on machining centers.

Fix: Reverse the conveyor manually using the maintenance switch to clear jammed parts or heavy nests of stringy chips. Reset the thermal overload relay in the electrical cabinet. This guide provides a detailed breakdown of common

The front or side door was opened during automatic operation.

Empty lube reservoir, broken lubrication line, blocked metering valves, or a faulty pressure switch. EX0002: Coolant Level Low

Check the way lube level, hydraulic pressure gauges, and coolant tank sight glasses. The numbers themselves often carry implicit meaning: The

The turret took too long to unclamp, rotate, or clamp during a tool change.

Among the various alarm classifications, are unique. Unlike system or servo alarms that originate deep within the CNC control software or drives, EX alarms are generated by the machine's Programmable Logic Controller (PLC) or ladder logic. They generally point to issues with peripheral hardware, safety interlocks, fluid levels, or mechanical limits.

The tool magazine failed to locate the correct tool pot within the allocated time.