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Support forum to share knowledge about installation and configuration of APC offers including Home Office UPS, Surge Protectors, UTS, software and services.
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
I foolishly connected my battery reversed to my BK605MC. A spark later and the UPS is completely dead.
I see two paralleled 40 amp fuses between battery+ and the board but they are both good, and the unit breaker is set in/on. Next to both battery leads are board traces that say "F 5 amp" but they are copper strips on the circuit board and good anyway.
Any advice where to start? I know my way around with a schematic but Im blind... Thanks
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
Let me give APC a design idea - FUSE the DC outputs to the battery! Whats that cost - 30 cents?
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
Very enlightening post from KVAr, thank you for that!
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
unfortunately, APC cannot provide internal schematics as they are proprietary. i am not sure if anyone around here has any general useful information though..
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
Let me give APC a design idea - FUSE the DC outputs to the battery! Whats that cost - 30 cents?
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
Hi, am not sure that would provide your intended protection really.
It only takes 0.65V reverse to destroy a solid state junction {which is what may have happened} and providing some form of polarity protection is going to lead to DC losses along the way.
An alternative could be polarised connectors which some of the larger units have, I guess where the unit you are dealing with is using spade terminals.
Good luck and sorry I couldn't be more helpful.
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
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Posted: 2021-06-28 10:59 PM . Last Modified: 2024-03-22 04:30 AM
Very enlightening post from KVAr, thank you for that!
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