drummerrhys Posted February 22, 2008 Share Posted February 22, 2008 Using a DMX controlled relay kit (one from velleman) would it be possible to put this into a dimmer to make it controllable?There is a dimmer on the site that would appear to have an empty space for DMX but it you could how would it be done?Need help here:P Link to comment Share on other sites More sharing options...
johnhuson Posted February 22, 2008 Share Posted February 22, 2008 How is a DMX relay kit going to help you control a dimmer? Not sure I understand your question! Link to comment Share on other sites More sharing options...
mjriley Posted February 22, 2008 Share Posted February 22, 2008 Do you mean to insert this card into a dimmer to make it DMX controllable via a desk which output DMX data? Link to comment Share on other sites More sharing options...
Ynot Posted February 22, 2008 Share Posted February 22, 2008 How is a DMX relay kit going to help you control a dimmer? Not sure I understand your question!Have to say I'm a trifled bemused also... Link to comment Share on other sites More sharing options...
drummerrhys Posted February 22, 2008 Author Share Posted February 22, 2008 exactly mjriley...make it controllable by a desk that hasdmx output Link to comment Share on other sites More sharing options...
johnhuson Posted February 22, 2008 Share Posted February 22, 2008 Let me get this right, you want to make a non DMX dimmer work from DMX? If so then a relay kit is not going to help you one bit! But I may of still misunderstood your question as your posts aren't exactly clear what your trying to achieve. Link to comment Share on other sites More sharing options...
dunk_1984 Posted February 22, 2008 Share Posted February 22, 2008 However surely if the dimmer isn't DMX it will be demux? and thus a demux converter would be simpler and just as effective? Link to comment Share on other sites More sharing options...
johnhuson Posted February 22, 2008 Share Posted February 22, 2008 However surely if the dimmer isn't DMX it will be demux? and thus a demux converter would be simpler and just as effective? And if that's the case you might want to look at something like this, although it only converts 4-channels, I'm sure there will be other kits available that do similar. Link to comment Share on other sites More sharing options...
drummerrhys Posted February 22, 2008 Author Share Posted February 22, 2008 This http://www.theelectronicsshop.co.uk/Art%20Work/showtec%20run%20lite_back.jpg would appear to have space to slot the card into Here is he card folks:P http://www.esr.co.uk/velleman/images/k8072.jpg Link to comment Share on other sites More sharing options...
cedd Posted February 22, 2008 Share Posted February 22, 2008 You need to bear in mind that a relay can only be on or off. There is no middle ground. A dimmer on the other hand can be off, on or anywhere inbetween. This means a relay won't be suitable. You could (I suppose) connect the relay to a 10v (or whatever 100% on your dimmer is) power supply and use the relay to switch the channel on or off. However this is all you will get, fully on or fully off. What the guys above are reffering to is a demux, or demultiplexer which converts DMX control levels into an analogue control signal. So in other words you get full intensity control. Unless you have something clever planned to make your own demux from the D-A convertor on the relay board, though it may not even have one! Basically, if you don't quite understand what people above have said or aren't 100% sure yourself, I'd leave it well alone! HTH Link to comment Share on other sites More sharing options...
johnhuson Posted February 22, 2008 Share Posted February 22, 2008 You still haven't told us exactly what you want to achieve?? So you want to be able to control the dimmer using DMX? If so then please read the posts above as they explain how to do this. I think you should probably read this page to understand what that module you pictured is for. EDIT: Largely beaten to it again! Link to comment Share on other sites More sharing options...
drummerrhys Posted February 22, 2008 Author Share Posted February 22, 2008 Yes I just realised both these things.Is it even possible to build your own DMX dimmer? Link to comment Share on other sites More sharing options...
Gerry Posted February 22, 2008 Share Posted February 22, 2008 I'm sorry but I am going to be very blunt.Given by the way you asked the question and your obviuos lack of knowledge I would suggest, even if it was possible, that YOU don't aatempt it yourself. Get a knowledable person to have a look.CheersGerry Link to comment Share on other sites More sharing options...
drummerrhys Posted February 22, 2008 Author Share Posted February 22, 2008 I'm sorry but I am going to be very blunt.Given by the way you asked the question and your obviuos lack of knowledge I would suggest, even if it was possible, that YOU don't aatempt it yourself. Get a knowledable person to have a look.CheersGerry I have plenty of knowledge in lighting just not that of building DMX dimmers, which I'm not sure very many people do. Although thanks for the pointer ** laughs out loud **, I would never attempt something like that unless I was 100% sure of what I was doingThanks,Rhys Link to comment Share on other sites More sharing options...
boatman Posted February 22, 2008 Share Posted February 22, 2008 I'm sorry but I am going to be very blunt.Given by the way you asked the question and your obviuos lack of knowledge I would suggest, even if it was possible, that YOU don't aatempt it yourself. Get a knowledable person to have a look.CheersGerry I have plenty of knowledge in lighting just not that of building DMX dimmers, which I'm not sure very many people do. Although thanks for the pointer ** laughs out loud **, I would never attempt something like that unless I was 100% sure of what I was doingThanks,Rhys But clearly not enough to know the difference between a dimmer and a relay. Only last week you were asking a lot of half-a**ed questions about building an OB truck for £1500 and now this. Please go and read these pages very carefully. Once you have done that come back and ask us again. Here's a hint for you. What do you think we learned from your picture of the back of a dimmer rack? Answer: That it has four IEC outlets. Showing the front panel with a make and model number would be more helpful. HTH Link to comment Share on other sites More sharing options...
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