The spindle was commanded to start while the chuck was in the unclamp position, or the proximity sensors on the hydraulic actuator are misadjusted.
Effective troubleshooting requires moving beyond the alarm text itself to understand the mechanical and logical sequence the machine was attempting. By learning to use your machine's diagnostic tools—primarily the ladder logic and I/O screens—and by following structured maintenance, you can transform the EX alarm from a frustrating stop signal into a valuable guide for rapid, accurate diagnosis. mori seiki ex alarm list
EX alarms stand for . They indicate that the CNC control itself is working fine, but an external condition required for safe operation has not been met. These alarms are programmed by Mori Seiki via the ladder logic to protect the operator, the workpiece, and the machine components. The spindle was commanded to start while the
What is the and text message on your screen? EX alarms stand for
When an EX alarm halts production, follow this logical workflow to resolve it safely: Step 1: Document the Exact Code
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