Jump to content

DMX and DIP


BobM

Recommended Posts

Hi All, I have just bought some Lanta LED PAR 64 and am trying to get them to run on DMX. What do I set the DIP switches to on the lights. I have also got an additional 6 channel dimmer pack to run them from. The next available channel is 25. I have tried setting them at 25 - 1, 4, and 5 , along with a few others. Any help appreciated Ta.
Link to comment
Share on other sites

You should not attempt to run any LED lantern from a dimmer pack. They must only be supplied with hard power and DMX otherwise you may damage them. I don't know the Lanta product but they have a wide variety of LED PARs and the manuals are available on their website here. As there is no information about the polarity of the DMX signal in the manual I looked at (Fireball Tri) it might be worth inverting the signal by swapping pins 2 & 3.
Link to comment
Share on other sites

You should not attempt to run any LED lantern from a dimmer pack. They must only be supplied with hard power and DMX otherwise you may damage them. I don't know the Lanta product but they have a wide variety of LED PARs and the manuals are available on their website here. As there is no information about the polarity of the DMX signal in the manual I looked at (Fireball Tri) it might be worth inverting the signal by swapping pins 2 & 3.

Link to comment
Share on other sites

I think your problem may not be so much that you're setting the DMX address wrong, but that you're running them off a dimmer pack!

 

Only generic fixtures should be run off dimmers - anything with built in electronics, such as your LED parcans should only ever be run straight from the mains.

 

Edit: Beaten to it!

Link to comment
Share on other sites

Hi All, I have just bought some Lanta LED PAR 64 and am trying to get them to run on DMX. What do I set the DIP switches to on the lights. I have also got an additional 6 channel dimmer pack to run them from. The next available channel is 25. I have tried setting them at 25 - 1, 4, and 5 , along with a few others. Any help appreciated Ta.

 

 

which lanta par64 have you purchased?

 

Ok read ur latest post. It's the fireball

 

which controller are you using?

 

The dip switches are correct for a value of 25

Link to comment
Share on other sites

Bob, might I suggest you have a thorough rootle around BR for gen on LEDS, DMX, desks, cables, XLRs 3 and 5 pin, terminations, addresses etc, etc.

 

It might be prudent to check that they actually work before you go any further with connecting them to a desk or controller. I see there is a set up button...is there a test sequence you can start... it's too late to start d/l manuals.

Link to comment
Share on other sites

.

I have also got an additional 6 channel dimmer pack to run them from.

.

 

 

.

They are mains powered ...

.

 

Is that "hard" mains or "dimmed" mains? It isn't clear from your posts.

 

A quick look at the Fireball Pro manual shows up a problem. Personally, I find the manual very confusing, but the one thing that is clear is setting the DIP switches to DMX address 1 (switches 1 & 10 on) will put the fixture into "Slave" mode. I'm hazarding a guess that all combinations which have both switches 1 & 10 on are going to force it into slave mode. Try setting the DMX address to an even number (switch 1 off) and see if that works.

Link to comment
Share on other sites

Have you tried setting one unit to DMX channel 1- just to test that the unit responds to DMX, once with dip 1 and 10 on and then with just dip 1 on. Some units even work on the pricipal that all dips off is DMX channel 1. Just a thought.

 

Hi, and thanks to everyone your suggestions. I am using Behringer dimmer packs, all working right up to channel 24. I have added another Behringer starting at channel 25, that is what I set the DIP switch to. 1, 4, 5, and 10 to turn on the DMX as it states in the not too clear manual. The lanterns are hard mains plus a 3 pin DMX in and out, I have tried swapping pins 2 and 3. The lanterns work well in all other resrects, auto, strobe, sound activated but no DMX. I will telephone Lanta Monday if all else fails.

 

Hi Aging Rocker, just re read your post, I did try to change channel numbers and DIP switches to suit but to no avail.

Link to comment
Share on other sites

.

.

Hi Aging Rocker, just re read your post, I did try to change channel numbers but to no avail.

 

Have you tried turning the fixure off before changing the DIP switches? It's possible that they are only read once on power-up and changing them whilst the fixture is on won't make any difference.

 

I hope your telephone conversation with Lanta is more revealing that the user manual.

 

Please let us know when you get an answer as it may be useful for another member in the future.

Link to comment
Share on other sites

OK, Bob.

 

Let's take this one step at a time. You concern me in a way because one minute youre saying the LED Pars are on hard power, and in the next you say that you've added another Behringer dimmer pack at the same address (25) as the first LED Par...

 

Let's just reiterate that the LED gear MUST be on a NON-dimmed hard power supply.

 

Then to prove your gear, as has been suggested, set the DMX address to '1' and try driving it from your desk at that address (first unplugging anything else on the DMX run so as not to confuse).

 

Looking at the manual for one of the LED cans, it appears that ch 1 in SOME DMX modes (they may have 3, 4 or 8 ch DMX options) ch 1 on the lamp is the overal dimmer control, with 2, 3 and 4 being R/G/B. Don't worry about the higher channels of an 8-ch mode for now.

 

So in 3-ch mode you have RGB control, in 4-ch mode you get DIM, then RGB.

 

So opening fader 1 on the desk with the LED in 4-ch mode will apparently do nothing UNTIL you open either ch 2, 3 or 4 to send signal to raise the individual colours.

 

In 3-ch mode, ch 1 will give you RED, ch 2, GREEN and ch 3 BLUE, independently of each other.

 

That's about as basic as it gets with DMX (short of an single channel on/off!).

 

Keep on plugging.

Link to comment
Share on other sites

I think now I would be looking at the DMX cable. The Behringer dimmer appears to have a 5-pin DMX and I presume you have connected all your dimmers in a chain from the desk to the third pack using 5pin to 5pin cables followed then by a 5pin to 3pin linking from the last dimmer pack to the first LED can.

 

The connection from 5pin to 3pin uses the same numbers, 1-Screen, 2-DMX negative, 3-DMX positive but the pin layout in the shell is different. I would suggest you look closely at this cable especially if you made it yourself. Look at the numbers stamped on the body of each connector.

 

Can you also try setting one of your dimmer packs to DMX address 25 and make sure your desk (you didn't say what you are using) is supplying six DMX channels (25 - 30)

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.