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
The oil reservoir for the slideways or spindle bearings is empty.
These errors relate to peripheral management, including chips, coolant, and temperature controls. mori seiki ex alarm list
The hydraulic unit pressure has dropped below the safe operating threshold. Check the hydraulic oil level, the pressure gauge, and the pressure switch functionality.
EX Alarms, however, are unique to the machine builder. The "EX" stands for or, more accurately, Machine Builder-Specific Alarm . These alarms are programmed by Mori Seiki’s engineers within the ladder logic (PLC) of the machine. They monitor the peripheral systems—coolant pumps, chip conveyors, hydraulic units, door interlocks, tool changers, and lubrication systems. When an operator sees an alarm like “EX1040 SPINDLE UNIT LUBRICATION LOW,” this is not a generic controller alarm but a custom message created by Mori Seiki to pinpoint a condition specific to their machine’s design. Top off the coolant tank with water and soluble oil mixture
These are native to the control system (like Fanuc). They usually relate to programming errors, servo drive faults, or communication issues.
– Safety door interlock is active; the door must be closed to start the cycle. Turret & Tooling Alarms Turret Illegal Movement EX Alarms, however, are unique to the machine builder
Check the hydraulic pressure gauge on the pump unit. Top off the hydraulic oil reservoir if it is low. Inspect lines for visible leaks. If the pump runs but builds no pressure, the hydraulic pump or pressure switch may need replacement. EX0172: Lube Pressure Down / Lubrication Fault
The control detects that the front operator door is open during a cycle, or the safety switch is malfunctioning.
I can provide the precise diagnostic steps or parameter checks for your exact situation.