Mori Seiki Ex Alarm List -

The Ultimate Guide to the Mori Seiki EX Alarm List: Causes, Solutions, and Prevention

Introduction: Why the EX Alarm List Matters

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 EX series alarms (External User Alarms) are the most common—and often the most misunderstood.

  1. Check the alarm description and possible causes.
  2. Verify the machine's current state and operating conditions.
  3. Consult the machine's user manual and maintenance guide.
  4. Perform basic troubleshooting steps, such as checking electrical connections, sensor functionality, and mechanical components.
  5. Contact Mori Seiki support or a qualified service technician if the issue persists.

EX0026 (DOOR NOT CLOSED): Attempted to run the machine while the protective door was open . mori seiki ex alarm list

Advanced Diagnostics: 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. The Ultimate Guide to the Mori Seiki EX

This article serves as a complete reference guide. We will break down what EX alarms are, how to access them, the most common alarm numbers by machine series (NLX, NH, DuraTurn, etc.), their probable causes, and step-by-step solutions. Check the alarm description and possible causes

On older Fanuc-controlled Mori (M-series, L-series without MAPPS)

  • EX alarms are displayed as user-defined macros: EX1001 = #1000 input signal.
  • Use SYSTEM → PMCMNT → ALARM to view active EX alarm text.

Alarm: 6001 / DOOR INTERLOCK OPEN

  • Distinct separation of machine vs. control errors.
  • Clear, well-translated descriptions.
  • Excellent integration with safety interlocks.
  • Includes suggested remedies, not just definitions.