Uncorrected input value - Help - New to this

[Stefan Latt]

Hello,

Sorry to bother you with this rudimentary question. 

I have this "Uncorrected input value" on the page under the DMX extension. 

I am using the DMX302 dimmers and the Dimmer block. 

Any tip would be greatly appreciated. 

Stefan

[Duncan]

Can you post a screenshot?

[Stefan Latt]

Yes

On Friday, June 28, 2019 at 10:17:42 AM UTC+2, Duncan wrote:

Can you post a screenshot?

[Duncan]

i get that on all my dmx outputs and they are working normally, so it appears to be a default normal comment

duncan

[Stefan Latt]

Thanks Duncan,

I checked again and it actually works , I guess I should have checked better and ignored any error message :-)

Another thing about these dimming the neutral. Why not switch N and L on input? Both are isolated with no relation to ground anyways. It is AC after all.

Thank You Again

[David Wallis]

fwiw in the UK the neutral is in relation to the 'ground' and they are tied together (dependant on the system tnc-s / pme).. 

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[Duncan]

the 'neutral' output of the dmx302 isnt tied to ground - when the light is off, it is at live potential (same as the live) relative to the earth - the dimmer applies pwm to the neutral side between live (the lamp is off) and neutral/earth (the lamp is on)

you could try reversing the mains input and measure the pd between the neutral and earth at the output with the dimmer set to 0 - but i think youll find that it doesnt work

On Friday, 28 June 2019 17:53:07 UTC+1, David Wallis wrote:

fwiw in the UK the neutral is in relation to the 'ground' and they are tied together (dependant on the system tnc-s / pme).. 

On Fri, 28 Jun 2019, 15:53 Stefan Latt, <stefa...@gmail.com> wrote:

Thanks Duncan,

I checked again and it actually works , I guess I should have checked better and ignored any error message :-)

Another thing about these dimming the neutral. Why not switch N and L on input? Both are isolated with no relation to ground anyways. It is AC after all.

Thank You Again

On Friday, June 28, 2019 at 12:32:19 PM UTC+2, Duncan wrote:

i get that on all my dmx outputs and they are working normally, so it appears to be a default normal comment

duncan

On Friday, 28 June 2019 09:33:27 UTC+1, Stefan Latt wrote:

Yes

On Friday, June 28, 2019 at 10:17:42 AM UTC+2, Duncan wrote:

Can you post a screenshot?

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[David Wallis]

I’m not suggesting they are tied together in the dimmer..  I’m talking about at supply origin and dependant on the cable / supply arrangement then also in other locations.

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[Stefan Latt]

Thanks, 

I will test later, as long as we don't tell the dimmer I do not think it can tell the difference :-) 

Thanks Stefan