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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » Odd problem with CE Ta-10: Shuts down Util Relay when other projector starts.

   
Author Topic: Odd problem with CE Ta-10: Shuts down Util Relay when other projector starts.
Brad Allen
Jedi Master Film Handler

Posts: 688
From: Evansville, IN, USA
Registered: May 2000


 - posted 01-10-2005 03:35 PM      Profile for Brad Allen   Email Brad Allen   Send New Private Message       Edit/Delete Post 
New install of a CE Ta-10 wall mount automation.
Replacing cobbled mess of home brew relays.
Two out of 3 TA-10's installed.
While a show is running in Projector B, when Projector C's show is started, the Utililty relay and the Lamp relay in Projector B's Ta-10 are released. Thus, shutting down the lamp and turning on the house lights. Motor continues to run.
Only way to correct this, is to press stop on Projector B's Ta-10, then press start again.

I've talked to CE tech support, they suspect the RF generated by the Kneisley Lamp house when it ignites on Projector C, corrupts the program in the TA-10.

The data interconnecting wires are not connected.

CE suggested an isolation relay to be placed between the Lamp relay in the TA-10 and the ignitor circuit on Projector B.

Anyone ran into this and have any further suggestions for a cure?

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 01-10-2005 10:18 PM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
I have an 8 plex I service and installed where when a show starts and the lamp ignites sometimes another machine willshut down or start up
Even after disconnectingthe data bus it will do it sometimes yet there has never been a hint of ignition noise get into any of the soundsystems or the digital processors

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Dominic Espinosa
Phenomenal Film Handler

Posts: 1172
From: Boulder Creek, CA.
Registered: Jan 2004


 - posted 01-11-2005 02:22 PM      Profile for Dominic Espinosa   Email Dominic Espinosa   Send New Private Message       Edit/Delete Post 
I'm no expert but is it possible for a dorp of electricity from starting the other show to cuase the relay to release?

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Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999


 - posted 01-11-2005 05:36 PM      Profile for Ken Layton   Email Ken Layton   Send New Private Message       Edit/Delete Post 
IIRC, the late Paul Thompson had a similar problem that turned out to be an electrical grounding problem with an electrical panel.

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Brad Allen
Jedi Master Film Handler

Posts: 688
From: Evansville, IN, USA
Registered: May 2000


 - posted 01-14-2005 12:28 PM      Profile for Brad Allen   Email Brad Allen   Send New Private Message       Edit/Delete Post 
CE says that since just those two relays drop, it has to be a program issue.

They also mentioned the voltage drop theory. I tightened all connections and added a new ground wire to the projector that causes problems when started. Time will only tell, as this is a sporadic problem.

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Brad Allen
Jedi Master Film Handler

Posts: 688
From: Evansville, IN, USA
Registered: May 2000


 - posted 04-17-2005 12:55 PM      Profile for Brad Allen   Email Brad Allen   Send New Private Message       Edit/Delete Post 
Still having this problem. Anyone with further thoughts.
The show run indicator light on automation B will go out, when projector C is started. Then on Projector B, after 7 seconds, the douser will close and the util relay will release.
Only solution is to press stop, then re-start the show.

I'm thinking the Xenon ignitor on Projector C is the cause of this. How could I reduce any noise caused by this ignitor?
This lamphouse use's a Irem rectifier.
Thanks.

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Darren Briggs
Master Film Handler

Posts: 371
From: York, UK
Registered: Dec 2001


 - posted 04-19-2005 04:02 PM      Profile for Darren Briggs   Author's Homepage   Email Darren Briggs   Send New Private Message       Edit/Delete Post 
Have you tried running the shows with the lamphouse off, to see if this stops the problem??

Darren

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Brad Allen
Jedi Master Film Handler

Posts: 688
From: Evansville, IN, USA
Registered: May 2000


 - posted 05-03-2005 08:17 PM      Profile for Brad Allen   Email Brad Allen   Send New Private Message       Edit/Delete Post 
It's definitely the one lamphouse causing the problem.
What's the chance that a good surge protector wired into the panel the TA-10 is wired into would solve this problem?

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