1/21/2015 11:38 AM | |
Posts: 4 Rating: (0) |
Hello, Again today we have found one interface module is not working, analogue input card and 2 nos ofdigital output card also not working. we are not sure what is the problem and why its coming intermittently. Last time means 16 days before we have replaced all this new card and after 16 days we have found same problem. All these cards are burnt at the same time. We are doubting now the problem of voltage or resistance but we are not having enough equipment to analyze the things. please give us some suggestion if anybody have some idea what can be do further. |
Last edited by: Min_Moderator at: 1/21/2015 1:03 PMSplitted |
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1/21/2015 3:31 PM | |
Posts: 1058 Rating: (93) |
Hello Firozmanek, do all the burnt Input and output modules have same 24V DC supply? If so its likely that you get some overvoltage from that. Check your power supply and cabeling. If I read right, your system is installed on a ship. In that case also check grounding of your system. Probably a defective isolation of AC power cable could also result in problem like you describe. regards |
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