ACS 880 inverter have no DC voltage

Dear all,
We have problem with inverter ACS880 that it don't have DC voltage on DC BUS.
what I need to do?
please to provide me some advice to check and repair it.
Thank you.

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vanduan_pham Rank: 1573

Asked 2 years ago

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Hi

check the main voltage supply. If the fuses are ok and you not have DC voltage at DC bus, probably you have one damage on the input rectifier bridge in your drive.

Please do not forget that to better understand your problem, it would be advisable for you to describe the size of the inverter, if it is a drive that has already worked, if there have been events that may have caused the problem you describe.
Furthermore, IMHO the convenience of repair also depends on the size of the drive, on small sizes the costs of labor and spare parts sometimes do not justify a repair.

Hope this help you

BR
Flavio

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by vanduan_pham Rank: 1573 on 5/21/2019 12:45:14 AM | Like (0) | Report

Dear Flavio,
I checked. Main supply still goog, fuse is ok.
I checked input rectifier by measure diode via terminal +Udc,-Udc, U1,V1,W1. And saw that rectifier still good.
What I need to do for next step?

by Flavio Mussolin AKS expert

Rank: 3 on 5/21/2019 7:37:22 AM | Like (0) | Report

Hi
ok, generally the terminal +Udc and -Udc have the same tension of DC Bus... have you verified the parameter 1.11? What voltage value do you see on this parameter?

by Flavio Mussolin AKS expert

Rank: 3 on 5/21/2019 7:38:11 AM | Like (0) | Report

Last but not least....what size of inverter we are talking about

by vanduan_pham Rank: 1573 on 5/21/2019 7:49:01 AM | Like (0) | Report

Hi,
the inverter size : Acs 880- 105A-3 45kW.
in parameter 1.11 : Vdc = 0,11 Vdc.
Thank you

by Flavio Mussolin AKS expert

Rank: 3 on 5/21/2019 8:15:06 AM | Like (0) | Report

Hello
the value is as I suspected, not correct ... it is necessary to repair the unit, the best solution is to use the ABB service near your geographical area to have a final guarantee after the repair

by michael.agom Rank: 8307 on 4/22/2021 7:53:16 AM | Like (0) | Report

Hello Vanduan,

Have you been able to solve the problem? if you have, kindly advice what you did as am also facing same issue

by vanduan_pham Rank: 1573 on 4/22/2021 8:03:40 AM | Like (0) | Report

Hi Michael,
The result is ZINT board failure, and need to replace new one.
Thanks

by michael.agom Rank: 8307 on 4/22/2021 8:35:56 AM | Like (0) | Report

Hi Vanduan,

Thanks so much. I really appreciate your support

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Flavio Mussolin AKS expert

Rank: 3

Answered 2 years ago

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ACS 880 inverter have no DC voltage

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