Mori Seiki Ex Alarm List Link

Always start by verifying the obvious: hydraulic fluid levels, door closures, and chip conveyor jams. When those fail, access your machine’s PMC message history or log into the DMG MORI service portal with your serial number. For the rare, undocumented EX alarm, reading the PLC ladder directly is your ultimate fallback.

: Turret indexing time-out (Turret #1 or #2). EX0456 : Spindle orientation or indexing time-up.

EX alarms monitor the physical environment of the machine. They trigger when a proximity switch, pressure sensor, limit switch, or safety interlock fails to meet the required condition during operation. Common Mori Seiki EX Alarm Categories

To help find the exact fix for your machine, could you tell me: mori seiki ex alarm list

Type in the specific Mori Seiki (Input) or Y (Output) address corresponding to that alarm in your machine’s manual to see if the control is physically receiving the signal. Preventive Maintenance to Avoid EX Alarms

The door lock confirmation signal did not reach the control within the allotted time. TURRET ILLEGAL MOVEMENT

To help find more specific answers, what is the showing on your screen? It would also help to know the model of your Mori Seiki machine and which control system (Fanuc, Mitsubishi, or MAPPS) it uses. Share public link Always start by verifying the obvious: hydraulic fluid

Mori Seiki CNC machines are famous for their reliability and precision. However, when an EX alarm appears on your MSG or MAPPS control panel, production grinds to a halt. Unlike NC alarms (which relate to core Fanuc or Mitsubishi control system faults), EX alarms are external system alarms defined by Mori Seiki. They signal issues with the machine's peripheral hardware, safety switches, fluid levels, and mechanical systems.

Check for mechanical jams or heavy chip buildup behind the turret disk. Verify hydraulic pressure to the turret clamp/unclamp manifold. Step-by-Step EX Alarm Troubleshooting Framework

The door is actually open, or the safety switch is dirty or broken. : Turret indexing time-out (Turret #1 or #2)

The hydraulic power unit reports a fault, such as low pressure or readiness failure. SENSORING TOOL IN SPINDLE

The main hydraulic power unit (HPU) pressure dropped below the safe threshold required to operate the chuck, tailstock, or turret.

The proximity switches on the back of the chuck cylinder are set wrong.