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Low Earth Orbit
Lighting & Electrical
Blinder light craps out laptop on separate circuit, help!
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<blockquote data-quote="Randy Pence" data-source="post: 3823" data-attributes="member: 1108"><p>I have an odd problem. A bank of flood lights (i believe they were originally used to patrol part of the berlin wall) has been repurposed as a blinder for a club install. There are 4 sections of 10 serial strung 23v bulbs powered by 3 phase 16A 230v and relay triggered. A problem which cropped up is that the desktop pc which runs the dmx software for the rest of the dancefloor acts up when the blinders are either engaged for too long or too often (a giant red button triggers the relay). It does not crash (no windows rebooting), but usb devices stop working and the software can become unresponsive. That would almost be tolerable, but a single push of the button once caused a performers laptop to freeze. Audio, lighting, and the blinder are all on separate circuits, but tied together in the same panel. a passive transformer isolates the audio mixer output which feeds sound to light capability of the lighting software, as there is a ground loop without it.</p><p></p><p>the electrical work looks seemingly first rate, no hack job stuff.</p><p></p><p>My only guesses are that the relay or distro for the blinder is either backfeeding voltage or emitting emf</p><p></p><p>Out of safety concerns, I leave the distros panel breakers down for now. The in-house electrician will look at it soon, but do any of you have any ideas? thx</p></blockquote><p></p>
[QUOTE="Randy Pence, post: 3823, member: 1108"] I have an odd problem. A bank of flood lights (i believe they were originally used to patrol part of the berlin wall) has been repurposed as a blinder for a club install. There are 4 sections of 10 serial strung 23v bulbs powered by 3 phase 16A 230v and relay triggered. A problem which cropped up is that the desktop pc which runs the dmx software for the rest of the dancefloor acts up when the blinders are either engaged for too long or too often (a giant red button triggers the relay). It does not crash (no windows rebooting), but usb devices stop working and the software can become unresponsive. That would almost be tolerable, but a single push of the button once caused a performers laptop to freeze. Audio, lighting, and the blinder are all on separate circuits, but tied together in the same panel. a passive transformer isolates the audio mixer output which feeds sound to light capability of the lighting software, as there is a ground loop without it. the electrical work looks seemingly first rate, no hack job stuff. My only guesses are that the relay or distro for the blinder is either backfeeding voltage or emitting emf Out of safety concerns, I leave the distros panel breakers down for now. The in-house electrician will look at it soon, but do any of you have any ideas? thx [/QUOTE]
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Blinder light craps out laptop on separate circuit, help!
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