Mori | Seiki Ex Alarm List

Watch the status bits ( 0 or 1 ) toggle when you manually trigger the sensor. If a sensor does not change state when metal is placed in front of it, the sensor or its cable is defective. Step 4: Clear the Alarm Safely Once the physical cause is addressed: Press the key on the MDI panel.

A massive percentage of EX errors are caused by chips, sludge, or coolant interfering with proximity sensors. Locate the sensor associated with the fault (e.g., chuck clamped sensor, turret clamp sensor), clean it thoroughly, and verify if the built-in LED indicator changes state when metal passes in front of it. How to Prevent Frequent EX Alarms

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)

Understanding these codes is essential for minimizing downtime and ensuring the safety of both the operator and the machine. 1. Common Mori Seiki EX Alarm Categories mori seiki ex alarm list

When an EX alarm halts production, follow this universal checklist to diagnose the issue systematically:

The way lube pressure did not reach the required threshold during a lubrication cycle.

Need the exact EX alarm list for your specific model? Leave a comment with your machine’s year and control type, and we can narrow down the most common failure points. Watch the status bits ( 0 or 1

: The spindle failed to reach its oriented position (indexing) within the allowed time.

Step 3: Utilize the Diagnostic Screen (PMC/PLC Bit Monitoring)

Because EX alarms are defined by the machine builder (Mori Seiki), the exact code can vary slightly between models (e.g., NLX, NTX, DuraVertical). However, they generally follow these ranges: A massive percentage of EX errors are caused

Since the EX series utilizes Fanuc controls (typically 16i/18i/21i or 0i-TD/TC), you will see standard Fanuc alarms.

Clean or replace the filters on the electrical cabinet doors and hydraulic heat exchangers. Electrical Integrity

– The lubrication system pressure has dropped or failed to build up, possibly due to a broken pipe or motor failure.

These are the most frequent codes operators will encounter on the EX series.

The emergency stop circuit is open.