Mori Seiki Ex Alarm List Jun 2026

Mori Seiki are machine-specific external alarms generated by the PLC (Programmable Logic Controller) rather than the standard CNC control (e.g., Fanuc or Mitsubishi). They typically relate to peripheral devices like the

Fix: Refill the coolant tank with the correct water/oil mixture. Clean chips away from the float switch if it is stuck in the down position. EX0300 - EX0599: Spindle and Axis Overload Alarms

Fix: Close the door completely. If closed, verify the safety relay in the electrical cabinet is resetting.

top Legacy Mori Seiki CNC Error Codes Explained & How To Fix mori seiki ex alarm list

A critical feature of EX alarms is that they . The control is designed to physically prevent machine operation because proceeding without correcting the root cause could result in serious machine damage. When an alarm occurs, the screen automatically switches to the PLC alarm screen and displays the specific code and message. You can often press a [DETAIL] soft key for a more detailed explanation.

Turret indexes must be perfectly precise. Any misalignment triggers an external alarm.

The coolant tank level has dropped below the minimum sensor threshold. EX0451 (Spindle Lube Alarm): Mori Seiki are machine-specific external alarms generated by

Do not just look at the blinking red light. Press the or [ALARM] hard key on your Mori Seiki control. Look for sub-text or second pages that display additional PMC diagnostic data. 2. Check the PMC Diagnostics (D-Bits and X-Bits)

– The spindle failed to reach its oriented stop position within the set time. EX1037/1038/1040: Overload Alarms

Alarm: 1011 / OVERLOAD (SPINDLE/SERVO)

To help me tailor any further technical information, could you share the you are seeing, along with your machine's model name (e.g., NLX2500, NHX4000)? Share public link

Clean the safety switch assembly. Replace the door interlock switch if internal contacts are failing. 4. Chuck, Tailstock, and Fixture Alarms (EX0600 - EX0799)

For detailed lists and diagnostic procedures, refer to these professional documentation sources: EX0300 - EX0599: Spindle and Axis Overload Alarms