notifier 640 slc all devices invrep

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eddiev517
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Tue Dec 11, 2018 11:02 pm

i am having trouble with a notifier 640 on the SLC loop all the devices hooked up to the 1st SLC loop keep coming in as a invrep(invalid response i do believe)we unplug the slc loops from the 4 or 5 cards that is running off the 1st SLC loop.The invrep clears and goes back to normal but always seems to come back day or 2 later.i metered the SLC loop and is a steady 14.85. Is the main panel about to go out or could it be from a card itself or maybe a ground fault is coming in but isnt locking in. My boss and i cant figure out what is wrong and nothing is open in the loop and nothing comes in just that all the devices are invrep.if any ideas please help thanks
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randomperson
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Thu Dec 13, 2018 7:50 am

Sounds like the SLC card is starting to go bad.
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