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ceengland7(at)gmail.com
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 Posted: Sun Feb 05, 2017 5:53 am Post subject: Single EPL101x Series Dimmer For Dynon Skyview Brightness a |
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Which Dynon screen do you have? A friend is winding up a Skyview install, and just mentioned to me that it has a PWM dimmer feature built in that will control panel LEDs in concert with screen brightness. He did mention that the PWM functions on the ground path, so the LEDs are fed 12V and the ground side of the LEDs are wired to the PWM dimmer terminal in the Skyview. So if that's what you have, it's worth diving back into the manual and/or giving Dynon a call.
The diagram under the red X shows your control wired as a rheostat. The top diagram shows it wired as a potentiometer (voltage divider). If you wire it as a rheostat, it's unlikely to work well as an LED dimmer. It's unlikely to work well as an LED dimmer, anyway, unless you just get lucky and its resistance value range is perfect for the supply voltage/LED current range needed for bright to dim operation.
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=rheostat+vs+potentiometer
Charlie
On Sat, Feb 4, 2017 at 11:24 PM, William Hunter <billhuntersemail(at)gmail.com (billhuntersemail(at)gmail.com)> wrote:
| Quote: |
Hi All (again),
I am trying to integrate a single rheostat for use with both the RockRack switch LEDs and the Dynon Skyview. In other words I want to have the single rheostat dim both the RockRack indicator LEDs and the Dynon brightness with a turn of a single knob.
The Rheostat I bought is a bit confusing. I thought it would only have only two wires (one in-ey and one out-ey) and I would simply connect the in-ey wire to a fused 12 VDC source and then connect the out-ey to both the Dynon and the RockRack LED input spade.
This rheostat however has THREE wires.
The instructions have a “Simplified Hookup” but it states that this hookup is for “Incandescent Lamps Only”. Is there a reason why I could not use that hookup for the RockRack LEDs?
(Attached is a PDF of the instructions for the Rheostat)
OTHER INFORMATION:
The RockRack have an LED that illuminates when the switch is placed in the ON position. The voltage source for this LED can either be the output voltage of the switch itself (example: Turn the landing light ON and the power that goes out to the landing light is also tapped off to provide the power for the LED in the switch) or a rheostat with a controlled voltage can be used as the source of power for the LEDs to make them dimmable.
I have the Dynon part figured out…it has a “pin 25” that is a pin that looks for a source signal voltage and when it sees a certain voltage, the screens will dim to a user programmable brightness (example: If pin 25 sees 14 VDC then the screens will go to 100 percent brightness and if they see 7 VDC then they will dim to 50 percent).
I do not have the schematic for the RockRack switches so I will have to multimeter the spade connectors to see how to wire them.
Any help would be greatly appreciated
..
Cheers!!!
Bill Hunter
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billhuntersemail(at)gmail
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| Posted: Sun Feb 05, 2017 8:43 am Post subject: Single EPL101x Series Dimmer For Dynon Skyview Brightness a |
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Charlie,
!!!THANKS!!!
Learning is taking place…
I am running dual SV-1000s plus the KNOBS, AUTOPILOT controller and the SV-RADIO.
A SkyView display’s backlighting can be controlled by the menu SCREEN > DIM to access the DIM Menu but that is a hassle so I want an external dimmer knob.
The Skyview has a pin 26 and this is a 120 HZ Pulse Width Modulation (PWM) signal and it looks like that is what I want.
I have 8 RockRack switches and each has an indicator LED. If I do use pin 26 as the PWM power source for the switch indicator LEDs then I imagine I simply branch off of pin 26 with 8 wires and run each to the "+" spade of the switch LED and then run the "-" spade of the switch LED to a convenient ground.
QUESTION #2: I assume that I wire up my external EPL101x Series 12 V DC Dimmer as a simplified rheostat (bottom diagram) as opposed to a potentiometer (top diagram) in the instruction sheet and then that variable 12 VDC output signal of the rheostat will become the input signal to pin 25 of the Skyview?
http://www.pcarv.com/images/Dimmer/EPL1012%20Website%20Instruction%20Sheet.pdf
THANKS AGAIN I GREATLY APPRECIATE YOUR HELP (cyber yelling intentional)!!!
..
Cheers!!!
Bill Hunter
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Charlie England
Sent: Sunday, February 5, 2017 5:51 AM
To: aeroelectric-list(at)matronics.com
Subject: Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness and RockRack Switch LEDs
Which Dynon screen do you have? A friend is winding up a Skyview install, and just mentioned to me that it has a PWM dimmer feature built in that will control panel LEDs in concert with screen brightness. He did mention that the PWM functions on the ground path, so the LEDs are fed 12V and the ground side of the LEDs are wired to the PWM dimmer terminal in the Skyview. So if that's what you have, it's worth diving back into the manual and/or giving Dynon a call.
The diagram under the red X shows your control wired as a rheostat. The top diagram shows it wired as a potentiometer (voltage divider). If you wire it as a rheostat, it's unlikely to work well as an LED dimmer. It's unlikely to work well as an LED dimmer, anyway, unless you just get lucky and its resistance value range is perfect for the supply voltage/LED current range needed for bright to dim operation.
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=rheostat+vs+potentiometer
Charlie
On Sat, Feb 4, 2017 at 11:24 PM, William Hunter <billhuntersemail(at)gmail.com (billhuntersemail(at)gmail.com)> wrote: | Quote: |
Hi All (again),
I am trying to integrate a single rheostat for use with both the RockRack switch LEDs and the Dynon Skyview. In other words I want to have the single rheostat dim both the RockRack indicator LEDs and the Dynon brightness with a turn of a single knob.
The Rheostat I bought is a bit confusing. I thought it would only have only two wires (one in-ey and one out-ey) and I would simply connect the in-ey wire to a fused 12 VDC source and then connect the out-ey to both the Dynon and the RockRack LED input spade.
This rheostat however has THREE wires.
The instructions have a “Simplified Hookup” but it states that this hookup is for “Incandescent Lamps Only”. Is there a reason why I could not use that hookup for the RockRack LEDs?
(Attached is a PDF of the instructions for the Rheostat)
OTHER INFORMATION:
The RockRack have an LED that illuminates when the switch is placed in the ON position. The voltage source for this LED can either be the output voltage of the switch itself (example: Turn the landing light ON and the power that goes out to the landing light is also tapped off to provide the power for the LED in the switch) or a rheostat with a controlled voltage can be used as the source of power for the LEDs to make them dimmable.
I have the Dynon part figured out…it has a “pin 25” that is a pin that looks for a source signal voltage and when it sees a certain voltage, the screens will dim to a user programmable brightness (example: If pin 25 sees 14 VDC then the screens will go to 100 percent brightness and if they see 7 VDC then they will dim to 50 percent).
I do not have the schematic for the RockRack switches so I will have to multimeter the spade connectors to see how to wire them.
Any help would be greatly appreciated
..
Cheers!!!
Bill Hunter
|
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ceengland7(at)gmail.com
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| Posted: Sun Feb 05, 2017 11:47 am Post subject: Single EPL101x Series Dimmer For Dynon Skyview Brightness a |
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I wish I could be more help, but my knowledge of the Skyview is limited to what my friend mentioned to me yesterday. 
Basing my answer on 'general principles', it's unlikely that wiring it as a rheostat to an actual control pin would do what you want. A control input will likely have a very high input impedance, so varying the rheostat's resistance would cause little voltage change at the control pin (minimal voltage drop because there's minimal current flow through the rheostat). When wired as a potentiometer (voltage divider), the resistance between the 'wiper' (center terminal) and the ground terminal supplies the load, and in combination with the input side resistance (between input and wiper), creates the load so current actually flows through the pot and voltage drops. The control input on the Dynon would then see the varying voltage present on the wiper of the pot.
Be sure that you're interpreting correctly how the Dynon pin 25 acts. If it has 14 V on it with the Dynon powered up nothing connected to pin 25, then Dynon is probably expecting you to supply a varying resistance to ground to control the pin. If, on the other hand, there's no voltage on that pin, then it's as you expect and Dynon expects you to supply a varying voltage to the pin.
Again: this is speculation since I'm not looking at the Dynon manual.
Charlie
On Sun, Feb 5, 2017 at 10:38 AM, William Hunter <billhuntersemail(at)gmail.com (billhuntersemail(at)gmail.com)> wrote:
| Quote: |
Charlie,
!!!THANKS!!!
Learning is taking place…
I am running dual SV-1000s plus the KNOBS, AUTOPILOT controller and the SV-RADIO.
A SkyView display’s backlighting can be controlled by the menu SCREEN > DIM to access the DIM Menu but that is a hassle so I want an external dimmer knob.
The Skyview has a pin 26 and this is a 120 HZ Pulse Width Modulation (PWM) signal and it looks like that is what I want.
I have 8 RockRack switches and each has an indicator LED. If I do use pin 26 as the PWM power source for the switch indicator LEDs then I imagine I simply branch off of pin 26 with 8 wires and run each to the "+" spade of the switch LED and then run the "-" spade of the switch LED to a convenient ground.
QUESTION #2: I assume that I wire up my external EPL101x Series 12 V DC Dimmer as a simplified rheostat (bottom diagram) as opposed to a potentiometer (top diagram) in the instruction sheet and then that variable 12 VDC output signal of the rheostat will become the input signal to pin 25 of the Skyview?
http://www.pcarv.com/images/Dimmer/EPL1012%20Website%20Instruction%20Sheet.pdf
THANKS AGAIN I GREATLY APPRECIATE YOUR HELP (cyber yelling intentional)!!!
..
Cheers!!!
Bill Hunter
From: owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com) [mailto:owner-aeroelectric-list-server(at)matronics.com (owner-aeroelectric-list-server(at)matronics.com)] On Behalf Of Charlie England
Sent: Sunday, February 5, 2017 5:51 AM
To: aeroelectric-list(at)matronics.com (aeroelectric-list(at)matronics.com)
Subject: Re: AeroElectric-List: Single EPL101x Series Dimmer For Dynon Skyview Brightness and RockRack Switch LEDs
Which Dynon screen do you have? A friend is winding up a Skyview install, and just mentioned to me that it has a PWM dimmer feature built in that will control panel LEDs in concert with screen brightness. He did mention that the PWM functions on the ground path, so the LEDs are fed 12V and the ground side of the LEDs are wired to the PWM dimmer terminal in the Skyview. So if that's what you have, it's worth diving back into the manual and/or giving Dynon a call.
The diagram under the red X shows your control wired as a rheostat. The top diagram shows it wired as a potentiometer (voltage divider). If you wire it as a rheostat, it's unlikely to work well as an LED dimmer. It's unlikely to work well as an LED dimmer, anyway, unless you just get lucky and its resistance value range is perfect for the supply voltage/LED current range needed for bright to dim operation.
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=rheostat+vs+potentiometer
Charlie
On Sat, Feb 4, 2017 at 11:24 PM, William Hunter <billhuntersemail(at)gmail.com (billhuntersemail(at)gmail.com)> wrote: | Quote: |
Hi All (again),
I am trying to integrate a single rheostat for use with both the RockRack switch LEDs and the Dynon Skyview. In other words I want to have the single rheostat dim both the RockRack indicator LEDs and the Dynon brightness with a turn of a single knob.
The Rheostat I bought is a bit confusing. I thought it would only have only two wires (one in-ey and one out-ey) and I would simply connect the in-ey wire to a fused 12 VDC source and then connect the out-ey to both the Dynon and the RockRack LED input spade.
This rheostat however has THREE wires.
The instructions have a “Simplified Hookup” but it states that this hookup is for “Incandescent Lamps Only”. Is there a reason why I could not use that hookup for the RockRack LEDs?
(Attached is a PDF of the instructions for the Rheostat)
OTHER INFORMATION:
The RockRack have an LED that illuminates when the switch is placed in the ON position. The voltage source for this LED can either be the output voltage of the switch itself (example: Turn the landing light ON and the power that goes out to the landing light is also tapped off to provide the power for the LED in the switch) or a rheostat with a controlled voltage can be used as the source of power for the LEDs to make them dimmable.
I have the Dynon part figured out…it has a “pin 25” that is a pin that looks for a source signal voltage and when it sees a certain voltage, the screens will dim to a user programmable brightness (example: If pin 25 sees 14 VDC then the screens will go to 100 percent brightness and if they see 7 VDC then they will dim to 50 percent).
I do not have the schematic for the RockRack switches so I will have to multimeter the spade connectors to see how to wire them.
Any help would be greatly appreciated
..
Cheers!!!
Bill Hunter
|
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user9253
Joined: 28 Mar 2008
Posts: 1922
Location: Riley TWP Michigan
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| Posted: Sun Feb 05, 2017 2:10 pm Post subject: Re: Single EPL101x Series Dimmer For Dynon Skyview Brightne |
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Looking at the SkyView System Installation Guide – Revision U, page 4-23
Pin 26 is negative, NOT positive. So connect pin 26 to the negative side of LEDs. The positive side of LEDs needs to be connected to positive 12 VDC.
Pin 25 expects a voltage, no current. Do NOT use that rheostat. Notice the rheostat directions state in red letters, "Connecting the Red and Black wires directly across 12 Volts will instantly burn out the Dimmer!"
Use a 10K potentiometer or ask Dynon what value to use. I do not think it matters as long as the resistance is high enough to limit the current to a few milliamps. Connect the two outside POT terminals to GND and positive 12 volts. Connect the center terminal (wiper) to SkyView pin 25.
Disclaimer: I have never wired a SkyView, just read the manual.
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taildrgr60(at)hotmail.com
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| Posted: Mon Feb 06, 2017 11:37 am Post subject: Single EPL101x Series Dimmer For Dynon Skyview Brightness a |
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Re. LED dimmer...try using a LM317T with a potentiometer (NO rheostat), simple and cheap, Google for circuit
Sent from Mail for Windows 10
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rolif6
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| Posted: Thu Aug 15, 2024 8:27 am Post subject: Re: Single EPL101x Series Dimmer For Dynon Skyview Brightne |
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An LED dimmer is an essential tool for creating the perfect ambiance in any room, allowing you to adjust the brightness of your LED lights to suit different moods and activities. Whether you're looking to set a soft, relaxing atmosphere for a quiet evening at home or brighten up the space for a lively gathering, an LED dimmer provides you with the flexibility to control the lighting with ease. Modern LED dimmers are not only energy-efficient but also easy to install and use, making them a great addition to any home. To explore a variety of LED dimmer options and find the perfect fit for your lighting needs, click here and discover how you can enhance your living space with customizable lighting solutions.
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