12/3/2019 9:52 AM | |
Posts: 95 Rating: (0) |
dear sir, here i had attached photo. after nc ,plc data clearing , i had had installed backup,but now this faults occur. |
12/3/2019 10:21 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877)
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Hello, How old is the NCU & PCU? From the attched screen shot, NCU battery life seems to be over. Please check the battery voltage by DMM, it should be 3.0 - 3.1 volt. If it is less than 2.9 volt, battery needs replacement. Do you have spare battery? If NCU unit is quite old, I suggest you to procure complete NCU fan unit along with battery & replace it. Please refer attached sheets for detailed information. After replacement of battery, you need to reload NC/PLC back up again. Regarding 120021 PCU fan monitoring alarm, open PCU rear cover & check if the PCU fan is free or its jam. (Ofcourse check this when power supply is completely OFF). If fan is Jam, you need to replace it. HTH. Attachment840D NCU battery replacement.pdf (348 Downloads) |
12/6/2019 7:05 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877)
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Did you got your machine problem solved? |
12/6/2019 9:48 AM | |
Posts: 95 Rating: (0) |
dear sir, battery already changed. voltage is 3.1v dc |
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