Regular maintenance can help prevent alarms and ensure optimal machine performance. Recommended maintenance tasks include:
Use the DIAGNOSIS button to look at PMC -> PMCPRM -> DATA to find which switch is causing the alarm.
The auto-door closed detection signal was deactivated without a command. Check the door limit switch and sensors.
Fix: Check your shop air supply compressor. Inspect the machine's air regulator/filter combo unit at the rear of the machine for water accumulation or a clogged element. mori seiki ex alarm list
Often, a metal chip or a bent switch causes the alarm. Clean around the turret, ATC, and doors. 4. Summary Table of Common EX Alarms Alarm Code Description Typical Cause EX0069 Door lock time over Interlock solenoid or proximity switch failure. EX0095 Turret illegal movement Unclamp sensor failure or hydraulic pressure loss. EX1557 Coolant flow too low Clogged filter, low coolant, or faulty flow switch. EX4004 Please close the door Safety interlock preventing spindle rotation. EX3402 Spindle cooler flow off Low oil level in cooler or pump failure.
pressed together with the O.T. release button after the hard O.T. limit switch has been. tripped. EX0064, AUTO-DOOR OPEN, ALM0064,
The Ultimate Mori Seiki EX Alarm List: Diagnostic Guide & Troubleshooting Reference Regular maintenance can help prevent alarms and ensure
1. Check for chips trapped behind the turret face.2. Verify hydraulic pressure to the turret clamping mechanism.3. Inspect the turret clamped/unclamped proximity sensors. TAILSTOCK SPINDLE INTERLOCK
Close the door completely. Wipe chips and coolant off the door switch key. EX0950 / EX950: Axis Interlock What it means: An axis is blocked from moving.
Sometimes the display only shows: EX1051 ... No PLC message configured . In this case, you need to read the . Check the door limit switch and sensors
In the world of DMG MORI service documentation, the term is searched thousands of times each month by engineers desperate to decode a flashing "EX 1050" or "EX 1402."
The cooling unit for the spindle is overheating or failing.
The "EX" stands for External or Extension alarm. These codes are written by Mori Seiki, not the computer maker. They talk about physical parts of the machine tool.
They interface with the machine’s or PMC.