Spindle drive alarm is present. Check the amplifier in the cabinet.
But the story didn't end there. Kenji cleared the chip and tried a reset. The EX 1047 cleared. Then, a new alarm flickered: Annoying, but not the killer. He filled the tank. Then came EX 0912: SPINDLE OIL FILTER CLOGGED (PREDICTIVE).
Below is a reference for frequently encountered EX alarm codes found across Mori Seiki lathes and machining centers: Mori Seiki Alarm Codes Overview | PDF - Scribd mori seiki ex alarm list
The Mori Seiki EX Alarm List is a testament to intelligent machine design. It transforms a complex assembly of mechanical, electrical, and fluid power systems into a transparent and communicative partner for the operator. By distinguishing external, machine-specific alarms from generic controller errors, it provides a clear diagnostic pathway from symptom to solution. For any shop operating Mori Seiki or DMG MORI equipment, familiarity with this list is not optional—it is the key to minimizing downtime, protecting precision components, and maintaining the productive rhythm of modern manufacturing. Ultimately, the EX Alarm List gives the machine a voice; it is the skilled operator’s job to listen, interpret, and act accordingly.
If an EX alarm stops your production line, follow these simple steps to find the root cause: 1. Read the Full Text Spindle drive alarm is present
He pulled up the on the MAPPS IV panel. It wasn't just a list; it was a confession. The list was divided into sections: EX 1000s for tool management, EX 2000s for hydraulics, EX 3000s for safety interlocks. The problem was, the manual’s description for EX 1047 was frustratingly vague: "Abnormal load on magazine servo. Check physical interference and servo parameters."
Understanding these codes keeps your lathe or machining center running smoothly and minimizes expensive service calls. Understanding Mori Seiki Alarm Categories Kenji cleared the chip and tried a reset
Step 3: Utilize the Diagnostic Screen (PMC/PLC Bit Monitoring)
Ensure the door is fully closed. Clean chips out of the safety switch key slot on top of the door. If using a key-style interlock, check if the mechanical switch key is bent or misaligned. EX0204 / EX204: Interlock Release Key Active
Twist and release all E-stop buttons around the machine cell. Check if a peripheral device (like a bar feeder) is powered off. EX0100 to EX0299: Fluid, Pressure, and Lubrication Alarms
Clean chips off the door interlock keys, chuck proximity switches, and tool setter arms. Top off way lube with the manufacturer's specified oil viscosity.