Because EX alarms are driven by the machine's PLC, you can track down the exact failing sensor using the CNC's diagnostic parameters. Press the key on your control pad. Select the PMC or DIAGN (Diagnostic) softkey.
Check the tailstock limit switch positions. Verify the hydraulic pressure assigned specifically to the tailstock stroke. Clean away chips from the base tracking sensors.
The spindle was commanded to start while the chuck was in the unclamp position, or the proximity sensors on the hydraulic actuator are misadjusted. mori seiki ex alarm list
Make checking way lube levels and incoming air pressure a mandatory task for operators before hitting Cycle Start on the first shift.
Check coolant concentration and clean out the chip trays to prevent float switches from sticking. Inspect hydraulic pressure gauges to ensure they meet specification. Because EX alarms are driven by the machine's
Clean the chip conveyor catch basins. Check the coolant tank float switch for smooth vertical travel.
of Mori Seiki machine you are using (e.g., NL, NH, DuraTurn)? What the machine was doing right before the alarm occurred? Mori Seiki Alarm Codes Overview | PDF - Scribd Check the tailstock limit switch positions
Turret alarms occur during index cycles, often due to mechanical jams or misaligned rotational sensors.
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Typically related to the operator panel or power supply conditions. Mill Spindle Alarm A fault is present in the spindle amplifier or drive unit. EX0551 Electrical Cabinet Overheat