Mori Seiki Ex Alarm List ((exclusive)) Jun 2026

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.

For exhaustive documentation, you can refer to comprehensive guides such as the Mori Seiki EX Alarm Code Overview or the Dura Vertical Alarm List . Mori Seiki Alarm Codes Overview | PDF - Scribd

Select the softkey, then choose [PMCDGN] and [STATUS] .

Re-adjust the forward and backward limit switches on the tailstock cylinder body. 5. Turret and Tool Changer (ATC) Alarms (EX1000 - EX1499) mori seiki ex alarm list

The is more than a table of codes – it is a diagnostic roadmap into the machine’s PLC logic. While no single article can list every possible EX alarm (Mori Seiki has produced hundreds of control variants over 40+ years), the codes and categories covered here represent the vast majority of daily production stoppages.

Fluid management errors are the most common causes of unexpected machine downtime.

The chip conveyor motor drew too much current, indicating a physical jam. Watch the status bits ( 0 or 1

Alarms generated by accessories connected to the main CNC unit.

Your machine's (e.g., NL2500, DuraVertical 5100) The control model (e.g., MSX-501, MAPPS, Fanuc 21i)

Machining environments are highly volatile. Fine metal chips and heavy coolant spray frequently coat proximity switches (on the chuck, doors, and tool changers), causing false EX alarms. A quick spray of cleaner or a wipe down fixes a massive percentage of these errors. Summary Table: Quick Reference EX Alarm Code Common Meaning Primary Action EX0001 Door Interlock Error Clean door switch; ensure fully closed. EX0015 External Emergency Stop Reset all E-stops on machine & accessories. EX0151 Hydraulic Pressure Down Check hydraulic oil level and pump gauge. EX0170 Way Lube Low / Fault Refill way lubricant reservoir. EX0201 Coolant Level Low Add coolant; check float sensor for chip buildup. EX0310 Chuck Unclamp Fault Adjust actuator proximity switches; check stroke. EX0520 Turret Index Error Check for mechanical obstruction or low hydraulics. If you want to isolate a specific code, let me know: The exact EX alarm number showing on your screen For exhaustive documentation, you can refer to comprehensive

The machine attempted to execute a command (like spindle start or automatic cycle) while the operator door was open.

On the EX series, alarms are generally categorized by their prefix: