ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
AreMetal Ladders Ever OK For Electrical Work?
by HotLine1. 01/22/18 07:31 PM
Photocell
by twh. 01/22/18 05:06 PM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 21 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Theater lighting controls #49058
02/26/05 09:58 AM
02/26/05 09:58 AM
J
Jps1006  Offline OP
Member
Joined: Jan 2004
Posts: 615
Northern IL
I'm curious what the difference between theater lighting controls and say something like a lutron grafik eye. http://www.lutron.com/grafikeye/

If I only had maybe 5 different scenes (for a church service) and don't anticipate needing flashing sequences of lights with an "all on" setting to fire in time with a cymbal crash, is a theater setup a little overkill?

Would a theater system have more noise suppresion?

I'm curious about anyones experineces. What have you all seen for stage lighting control, particularly in a contemporary church or similar situation.

Thanks.

Thought I'd add..... they are talking about wanting to add a couple small racks of the multicolored type lights. Do those genrally need special controllers?

[This message has been edited by Jps1006 (edited 02-26-2005).]

Work Gear for Electricians and the Trades
Re: Theater lighting controls #49059
02/26/05 10:46 AM
02/26/05 10:46 AM
M
mhulbert  Offline
Member
Joined: Oct 2004
Posts: 132
Anaheim, CA USA
If you just want 4-16 scenes you are OK...but I think where you might run into problems is the load on each channel. A Grafik Eye can do 800W per channel, with a maximum of 2000W total per unit. 1 stage light could be 400-600W! So maybe you would want a Grafik 4000 system that uses a seperate dimmer rack instead of bringing everything through the controller. A major difference in architectural dimmers vs entertainment dimmers is the dimmer rise time - ie the amount of time it takes it to go from 0 to 100%. Entertainment dimmers can do it very quickly, but Grafik Eye stuff is slowed down (on purpose, you can overide it on some of their stuff).

Most colored lighting is controlled by DMX512 which is a stage lighting control protocol. You would need a lighting board to control these lights, as they usually have at least 2 channels of control each, color and brightness, and if they are moving lights, they could have 10-14 channels EACH. You could feed the Lutron system with that same board for church services, and then have a few Lutron keypads to activate scenes for baptismals and stuff. The keypads would not change the colored lights, but just what's hooked up to the Lutron setup. Most of the Lutron dimmers can be made with 2 inputs- a dmx512 and then their standard control link for wallstations and such, and when it's getting DMX512 from a board, the wallstations are disabled, and when you put the board away, the wallstations can be used by the cleaning crew,etc.

Also, I think an entertainment sys would have better noise suppression. The chokes on those are HUGE and the dimmer modules are probably a bit better made...not that Lutron isn't!

Check ouy www.ETCconnect.com ...they have a bunch of 8-12 channel systems that can take DMX and support wallstations, I think they also have a timeclock and they all use entertainment grade dimmers. I think it's called the UNISON line.

Mike

[This message has been edited by mhulbert (edited 02-26-2005).]

Re: Theater lighting controls #49060
02/26/05 12:02 PM
02/26/05 12:02 PM
S
SolarPowered  Offline
Member
Joined: Jul 2004
Posts: 625
Palo Alto, CA, USA
I've worked with ETC stuff. I'll second the recommendation for ETC lighting controls.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Trumpy
Trumpy
SI,New Zealand
Posts: 8,231
Joined: July 2002
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 15
Potseal 15
Popular Topics(Views)
243,601 Are you busy
180,412 Re: Forum
170,870 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 14 (0.004s) Memory: 0.9512 MB (Peak: 1.0748 MB) Zlib enabled. Server Time: 2018-01-23 17:57:06 UTC