Mori Seiki Ex Alarm List !exclusive! | HD |

Comprehensive DMG Mori Seiki EX Alarm List: Troubleshooting and Solutions

Knowing this bypasses the need for a full EX list in an emergency.

| Component | Check | Prevents EX Alarm(s) | | :--- | :--- | :--- | | Hydraulic breather | Replace filter | EX1402, EX1425 | | Way lube tank | Refill, check for water contamination | EX1411 | | Chip conveyor motor | Clean swarf from limit switch | EX2010, EX2011 | | Turret coupling | Clean, light oil mist | EX1506 | | Door interlock switches | Test with meter for continuity | EX1001 | mori seiki ex alarm list

| Alarm Code | Probable Cause | Immediate Action | | :--- | :--- | :--- | | | Front door open during cycle | Close door. Check door switch (24V signal). | | EX1002 | Chuck interlock violation (chuck open allowed? ) | Verify chuck pressure switch; check draw tube sensor. | | EX1020 | Emergency stop button active | Twist to release. Check E-stop chain for broken wire. | | EX1033 | Chuck clamp confirmation failure (part unclamped) | Adjust proximity switch for chuck jaws. |

: A fault in the spindle's electrical drive system. Comprehensive DMG Mori Seiki EX Alarm List: Troubleshooting

: The tool turret moved without an explicit command from the NC. Check the turret's physical clamp signal or the output driver board.

To appreciate the EX Alarm List, one must first distinguish it from standard system alarms. A system alarm, often displayed as a numeric code (e.g., 1020, 2001), originates directly from the CNC controller (typically a Fanuc, Mitsubishi, or Siemens unit) and indicates a problem with the core control logic—such as an overloaded servo, a broken encoder, or a loss of reference position. These alarms are generic across many machine brands using the same controller. | | EX1002 | Chuck interlock violation (chuck open allowed

A proactive maintenance strategy uses EX alarms as early warnings, not just stop signals.