Indicator | Color | State | Specification |
---|---|---|---|
PWR Indicator | Green | ON | Power supply functioning normally |
OFF | Power failure or no valid input voltage detected | ||
RUN Indicator | Green | ON | Main controller in RUN state, user program operating |
HDD Indicator | Red | Blinking | HDD access in progress or normal read/write operations |
OFF | HDD inaccessible or no access activity |