Mori Seiki Ex Alarm List __link__ -
Before pressing any buttons, write down the exact EX alarm number and the text displayed on the screen. Note exactly what the machine was doing when the alarm occurred (e.g., "happens immediately upon indexing to Tool 4" or "occurs 10 minutes into running a cold machine"). Step 2: Utilize the Diagnostic Screen (PMC Signals)
Some interlock states lock out the control panel for safety. If you have resolved the physical issue (e.g., cleared a chip jam or filled an oil tank) and the clear button does not work, safely shut down the CNC control, turn off the main breaker, wait 60 seconds, and restart. Summary of Preventive Maintenance to Avoid EX Alarms Machine System Maintenance Action Prevents Alarm Codes Top up with clean, specified slide-way oil. EX0201, EX0204 Coolant Tank Clear out accumulated chips and clean float switches. EX0151, EX0152 Turret / ATC Wipe away chips from proximity sensors and limits. EX1005, EX1201 Electrical Cabinet
Adjust the proximity switches on the back of the hydraulic actuator cylinder at the rear of the spindle. Ensure your part diameter matches the stroke position configured for the clamp switches. EX0451 / EX451: Tailstock Quill Position Error
Turret indexes must be perfectly precise. Any misalignment triggers an external alarm. mori seiki ex alarm list
The door lock signal was not confirmed within the allowed time. PANEL ALARM General error with the flat operation panel or its I/O. ELECTRICAL CABINET OVER HEAT
What is the of your Mori Seiki machine (e.g., NLX 2500, NH4000)?
Kenji nodded. That was the real problem. The machine was smarter than the people maintaining it. He spent the next four hours replacing the oil filter, flushing the coolant tank, re-greasing the tool magazine guide rails, and resetting the servo load parameters. When he finally powered up the NTX 2000, the spindle roared to life, smooth as a whisper. He ran a test cycle. Tool change after tool change. No EX alarms. Just the clean, rhythmic thunk-thunk-whir of precision engineering. Before pressing any buttons, write down the exact
The Ultimate Mori Seiki EX Alarm List Guide: Troubleshooting and Fixes
The machine attempted to spin the spindle or move an axis while the front operator door or an access panel was detected open.
Find the symbol that is dark or not lit up. That is your broken switch or open contact. 3. Inspect Fluid Levels If you have resolved the physical issue (e
I can provide the precise diagnostic steps or parameter checks for your exact situation.
Reverse the conveyor manually to clear jammed nests of stringy chips or dropped workpieces. Reset the thermal overload breaker. Step-by-Step Troubleshooting Framework
When an EX alarm halts your Mori Seiki machine, follow this structured troubleshooting approach to minimize downtime: 1. View the Alarm Detail Screen
[Alarm Visualized on Screen] │ ▼ [Check Fluid Levels & Pressures] ──(Low/Empty)──► Top off fluids / Adjust regulator │ (Levels OK) ▼ [Inspect Proximity/Limit Switches] ──(Dirty/Misaligned)──► Clean chips / Realign sensors │ (Hardware OK) ▼ [Verify Diagnostic / I/O Status] ──(Signal Missing)──► Replace broken switch or cable 1. Check Visual and Physical Basics
Dual-channel safety monitoring detects a mismatch in the door switch state.