2nd from case MC01 that LUM cannot Open from SCADA, which happened all 3 times since the day the night 9 March to the 11 March. The first time PSY is changing Limit Switch, seconed times Reset DPU and third times changing HSCB DC Switch Gear. All of 3 times ECO can Open and Closed normally but PSY cannot know the root cause. And now we ask the cause problems to the EMT.