The Unit (GT) is a Frame VI GE gas turbine system having Mark VI control system. The machine (GT) has not been running for a quite long period of time as a result of maintenance outage and during that period ,the information on Totalizer page was all zeros. But during these period. there was communication between the HMI and Mark VI . But later we discovered that there was loss of communication between the HMI and Mark VI and HMI screen is Blank. The three UCVE card was brought out and we test the CMOS battery with voltmeter and discovered that the voltage on all the batteries were reading zero. The three UCVE cards was later changed with good new ones, but the problem still remain (no communication), Power on Mark VI has been Re- cycled. The three racks RST shows that there is synchronization in between them. Please your expert advice is highly welcomed to solve the problem
Thanks
Thanks
