15kw Quattro Noise

Question

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question

dbx120 asked Dec 20, '21

Hi All,

One of my customers has a 15kw 48V Quattro that is making a loud buzzing noise. Please see IMG_2900.MOV

Happens even with the AC outputs isolated.

Is this normal?

img-2900.mov (3.4 MiB)

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Answer 1 · 2021-12-20T13:27:43Z

Paul B answered · Dec 20, 2021 at 01:27 PM

upgrade to fw 490 there were some noise fixes in it - read the release notes for 480 to 490 - there is a reference in there

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dbx120 commented · Dec 20, 2021 at 10:33 PM

Thanks Paul!

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Answer 2 · 2022-01-05T09:33:43Z

kallenr answered · Jan 05, 2022 at 09:33 AM

it helps considerably if you mount rubbers behind the mounting plate.

So use large rubber rings between the wall and the suspension bracket.

Also in the left and right bottom corner between the wall I mounted these rubber rings.

(I total 5 rings with a Multiplus 2)

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