The control detects that the front operator door is open during a cycle, or the safety switch is malfunctioning.
The turret mechanism cannot physically unclamp from its curvic coupling to begin indexing.
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pressed together with the O.T. release button after the hard O.T. limit switch has been. tripped. EX0064, AUTO-DOOR OPEN, ALM0064,
A significant majority of EX alarms are caused by environmental interference rather than component failure. The control detects that the front operator door
Fluid management errors are the most common causes of unexpected machine downtime.
Tell you which on specific models.
When an EX alarm appears, do not panic. A systematic approach will usually lead you to the root cause. Follow this general workflow:
Top off the coolant tank with water and soluble oil mixture. Clean any chips accumulated around the float switch that might keep it stuck down. EX0300 to EX0499: Chuck, Tailstock, and Fixturing Alarms This link or copies made by others cannot be deleted
Go to the screen on your control panel. Look up the specific PMC parameter or "D-bit" associated with that external alarm (referenced in your Mori Seiki ladder manual). This shows you exactly which physical contact (NO/NC) is breaking the circuit. Step 5: Power Cycle the Machine
EX alarms are a specific class of error messages on Mori Seiki (now DMG MORI) machine tools. The "EX" prefix indicates a , also frequently referred to as a "Machine Side Alarm." Unlike standard NC alarms generated by the core Fanuc or Mitsubishi CNC, EX alarms originate from the machine builder’s custom ladder logic. This logic governs all the mechanical and electrical actions specific to your machine model, such as tool changers, pallet systems, coolant pumps, chip conveyors, and safety interlocks.