Mori Seiki Ex Alarm List ❲PROVEN ✯❳

Note: exact alarm codes vary by EX model and control type (Mori Seiki/OI-T/Oi-F/Oi-TF or later FANUC/Siemens variants). Use the machine’s alarm manual for exact code meanings. Below are representative examples and first-step actions.

An error signal was received from an external bar feeder.

Look for “ALARM LIST – EXTERNAL ALARMS”. Usually chapter 7 or 12.

: If a code is ambiguous, technicians often use the NC Ladder screen to find the specific coil (e.g., M7429 for EX0406) triggering the alarm to identify the missing sensor or signal condition. mori seiki ex alarm list

The machine is trying to start a cycle or spin the spindle while the main chuck is open, or the proximity sensors do not see the chuck in a fully clamped position.

They interface with the machine’s or PMC.

Note: Alarm codes can vary slightly depending on the specific Mori Seiki model (e.g., NLX, NTX, DuraTurn, NHX) and the generation of the MAPPS/Fanuc control. Always consult your specific machine's ladder diagram and electrical manual for exact definitions. 1. Lubrication & Fluid Alarms (EX0001 – EX0099) Note: exact alarm codes vary by EX model

Alarm: 6001 / DOOR INTERLOCK OPEN

Mori Seiki (now known as DMG Mori) is synonymous with high-precision, reliable CNC lathes, milling machines, and multi-tasking machining centers. However, even the most robust machines encounter errors. Among the various alarm groups (e.g., NC alarms, servo alarms, PLC alarms), the (External User Alarms) are the most common—and often the most misunderstood.

Knowing this bypasses the need for a full EX list in an emergency. An error signal was received from an external bar feeder

You do not always need a service manual. If your machine is powered on and you have access to the control panel (standard or maintenance level), you can view the current and historical EX alarm list directly.

Machining environments are highly volatile. Fine metal chips and heavy coolant spray frequently coat proximity switches (on the chuck, doors, and tool changers), causing false EX alarms. A quick spray of cleaner or a wipe down fixes a massive percentage of these errors. Summary Table: Quick Reference EX Alarm Code Common Meaning Primary Action EX0001 Door Interlock Error Clean door switch; ensure fully closed. EX0015 External Emergency Stop Reset all E-stops on machine & accessories. EX0151 Hydraulic Pressure Down Check hydraulic oil level and pump gauge. EX0170 Way Lube Low / Fault Refill way lubricant reservoir. EX0201 Coolant Level Low Add coolant; check float sensor for chip buildup. EX0310 Chuck Unclamp Fault Adjust actuator proximity switches; check stroke. EX0520 Turret Index Error Check for mechanical obstruction or low hydraulics. If you want to isolate a specific code, let me know: The exact EX alarm number showing on your screen