Ok so here's the dilema...I'm working in an auditorium and I had to relocate an existing lutron controller up into a ceiling. This controller is for motorized shades. Everything was working before hand. If you check the specs. Link below. The outputs are the terminals that I'm using to do this. All wires were labeled and put back together the same way upon relocating...I have an external transformer putting 28 volts to the common of the output strip and the other leg of the transformer goes to 2 external relays that are used to control the shades going up or down...the other sides of the coils on the relays hit outputs 1 and 5. After hooking it up and turning on the breaker for the tranny. I noticed a hum. The relays were humming. After testing I found out that there was 5 volts coming out of all the output terminals. But only when the transformer was attached to the lutron controller. The shades work fine but I can't get this hum to go away and I don't know why its there! There shouldn't be 5 volts on the outputs. There are leds that light up when the outputs are in use. Yet none of them are lit when I get this random voltage. Also when the output is active I only get 15 volts...shouldn't I get 28? I found another lutron controller and wired it up and it did the same. thing so I'm baffled as to what the problem is....any help would be appreciated. http://Asia.lutron.com/grafikeye/specs/grx-av.pdf
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trouble with lutron grx av controller
- Thread starter Dg01501
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ramsy
Roger Ruhle dba NoFixNoPay
- Location
- LA basin, CA
- Occupation
- Service Electrician 2020 NEC
I might ask Lutron tech. support for assistance.
They could have a checklist to run through that may find the problem.
They could have a checklist to run through that may find the problem.
i did call them and they explained to me that it shouldnt be doing that, yet i swapped it out with another lutron controller....not sure if it was working in the first place but it did the same thing...the functioning of the controller works...the right outputs are active when the light switches are pushed and they do close the contacts...just a random constant 2 or 3 volts...mbe just an old controller? there discontinued.
ramsy
Roger Ruhle dba NoFixNoPay
- Location
- LA basin, CA
- Occupation
- Service Electrician 2020 NEC
1) Too bad Lutron support didn't help you check for line noise, which may cause relay chatter. You may need to look into a line filter.
Line noise occurs with high-efficiency lighting, motor controls, remote controls, & broadband over power systems.
2) A constant 2-3 volts is also found between grounding & neutral (common mode voltage), but increases with load, MWBC's, & panel distance.
See if controller problem disappears on a dedicated circuit, original circuit, or start researching line filters.
Line noise occurs with high-efficiency lighting, motor controls, remote controls, & broadband over power systems.
2) A constant 2-3 volts is also found between grounding & neutral (common mode voltage), but increases with load, MWBC's, & panel distance.
See if controller problem disappears on a dedicated circuit, original circuit, or start researching line filters.
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