Today's Message Index:
----------------------
1. 05:13 AM - Re: Why is this diode there ? (MMiller)
2. 05:53 AM - Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness and RockRack Switch LEDs (Charlie England)
3. 06:39 AM - Re: Why is this diode there ? (Robert L. Nuckolls, III)
4. 07:29 AM - Re: RockRack Switches (Robert L. Nuckolls, III)
5. 08:43 AM - Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness and RockRack Switch LEDs (William Hunter)
6. 11:47 AM - Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness and RockRack Switch LEDs (Charlie England)
7. 12:17 PM - Off-On-On Switch (Paul Eckenroth)
8. 02:13 PM - Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness a (user9253)
9. 02:56 PM - Re: Off-On-On Switch (user9253)
10. 02:58 PM - solenoid (Mark Donahue)
11. 03:00 PM - Re: Off-On-On Switch (John Tipton)
12. 03:40 PM - Re: RockRack Switches (donjohnston)
13. 03:47 PM - Re: solenoid (user9253)
14. 04:56 PM - Re: Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness a (William Hunter)
15. 05:52 PM - Re: Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness a (Charlie England)
16. 08:11 PM - Re: Single EPL101x Series Dimmer For Dynon Skyview Brightness a (user9253)
Message 1
INDEX | Back to Main INDEX |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Why is this diode there ? |
The diode is minor, why do you want the starter contactor to self hold?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465783#465783
Message 2
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
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@gmail.com
>
wrote:
> 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 t
he
> Dynon and the RockRack LED input spade.
>
>
> This rheostat however has THREE wires.
>
>
> The instructions have a =9CSimplified Hookup=9D but it states
that this hookup
> is for =9CIncandescent Lamps Only=9D. 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 th
e
> 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 th
e
> 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 outit has a =9Cpin 25
=9D 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 the
y
> 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
>
>
Message 3
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Why is this diode there ? |
At 12:33 PM 2/4/2017, you wrote:
>Why is this diode in the Alternator B line ?
>
>Is it old thinking from way back in the day and old tech maybe to
>protect the older alternators ?
>
>
What is the source of this drawing? This diode MAY
have been offered as an alternative to b-lead protection
for failure/crash faults on the line to the alternator.
but it's in error as to how the starter contactor is
wired. There's also a curious diode in the ground power
contactor wiring.
This drawing has the 'smell' of having been copied from
some more credible source as a 'simplified' wiring diagram
not unlike those in the Cessna Pilot Handbooks of yesteryear.
A guy named C.E. Fraley used to sit right behind me in Cessna's
Tech Pubs department. He used to do all of the POH for the Pawnee
Plant. On several occasions I was asked to vet figures that he
distilled from the production wiring documents.
Emacs!
The simplification process needs to be conducted carefully
lest errors creep in. I suspect that the drawing you cite
may have fallen victim to errors in transcription.
Bob . . .
Message 4
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: RockRack Switches |
At 01:33 PM 2/4/2017, you wrote:
>Does anyone by chance have a schematic for the ON-OFF-ON Rockrack
switches?=C2
Do you have one of these switches in hand?
Bob . . .
Message 5
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Single EPL101x Series Dimmer For Dynon Skyview |
Brightness and RockRack Switch LEDs
Charlie,
!!!THANKS!!!
Learning is taking place
I am running dual SV-1000s plus the KNOBS, AUTOPILOT controller and the
SV-RADIO.
A SkyView display=99s 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%20Shee
t.pdf
THANKS AGAIN I GREATLY APPRECIATE YOUR HELP (cyber yelling
intentional)!!!
..
Cheers!!!
Bill Hunter
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of
Charlie England
Sent: Sunday, February 5, 2017 5:51 AM
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
<https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&
ie=UTF-8#q=rheostat+vs+potentiometer>
&ion=1&espv=2&ie=UTF-8#q=rheostat+vs+potentiometer
Charlie
On Sat, Feb 4, 2017 at 11:24 PM, William Hunter
<billhuntersemail@gmail.com <mailto:billhuntersemail@gmail.com> > wrote:
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 =9CSimplified Hookup=9D but it
states that this hookup is for =9CIncandescent Lamps
Only=9D. 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 outit has a =9Cpin
25=9D 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
Message 6
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Single EPL101x Series Dimmer For Dynon Skyview |
Brightness and RockRack Switch LEDs
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@gmail.com
>
wrote:
> Charlie,
>
>
> !!!THANKS!!!
>
>
> Learning is taking place
>
>
> I am running dual SV-1000s plus the KNOBS, AUTOPILOT controller and the
> SV-RADIO.
>
>
> A SkyView display=99s backlighting can be controlled by the menu SC
REEN >
> 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 convenie
nt
> 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 variab
le
> 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@matronics.com [mailto:
> owner-aeroelectric-list-server@matronics.com] *On Behalf Of *Charlie
> England
> *Sent:* Sunday, February 5, 2017 5:51 AM
> *To:* aeroelectric-list@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 th
e
> 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 manu
al
> 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@gmail.com> wrote:
>
> 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 t
he
> Dynon and the RockRack LED input spade.
>
>
> This rheostat however has THREE wires.
>
>
> The instructions have a =9CSimplified Hookup=9D but it states
that this hookup
> is for =9CIncandescent Lamps Only=9D. 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 th
e
> 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 th
e
> 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 outit has a =9Cpin 25
=9D 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 the
y
> 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
>
>
Message 7
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Off-On-On Switch |
Need some help from the experts. I have been looking for a DPDT switch
off-on-on non progressive. It seems like such an animal does not exist.
The switch will be used for wigwag/ landing lights. I am considering using
the wig/wag module sold by Crazed Pilot. Possibly there is another switch
that with creative wiring will give off-on-on. If so please advise and
include the creative wiring required. I could go with a on-off-on and have
what I need but I would like to keep all off functions down which is why I
am searching for the requested switch,
Thanks
Paul Eckenroth
Message 8
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Single EPL101x Series Dimmer For Dynon Skyview |
Brightness a
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 need to be connect 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.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465809#465809
Message 9
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Off-On-On Switch |
Possibly B & C part number S700-2-11
http://www.bandc.aero/toggleswitch-doublepole.aspx
or
http://www.mouser.com/ProductDetail/Carling-Technologies/STG2EE-53/?qs=lk%252bUld%252bvit6bNyz8ck2TZQ%3d%3d
or
http://www.digikey.com/product-detail/en/copal-electronics-inc/ET210PA12-Z/563-1873-ND/5086777
ET210PA12Z Datasheet:
http://www.nidec-copal-electronics.com/e/catalog/switch/et.pdf
ET210PA12Z __ ON ON OFF
ON Connecting terminals: 23 , 56
ON Connecting terminals: 56
OFF Connecting terminals: None
You could call B & C and get their advice.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465810#465810
Message 10
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
This is not plane related, but a friend has a diesel engine installation in
his craft. He has a solenoid that operates a glow plug during starting
sequence (hold key in glow plug position for 15 seconds before turning to
start). The pre heat was not working so he has replaced the solenoid per
the part list on the manual drawing which lists as 24v. But the system is
wired for 12v. So the question is will a 24 volt solenoid work with 12 volt
input?
Thanks,
Mark Donahue
Message 11
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Off-On-On Switch |
Paul
Would Mike bullocks idea suit you better, not needing the 'crazed pilot' wig wag
http://www.rvplane.com/?categoryid=&dayid=1145
John
Sent from my iPad
----x--O--x----
> On 5 Feb 2017, at 08:13 pm, Paul Eckenroth <paul@eckenroth.com> wrote:
>
> Need some help from the experts. I have been looking for a DPDT switch off-on-on
non progressive. It seems like such an animal does not exist. The switch
will be used for wigwag/ landing lights. I am considering using the wig/wag
module sold by Crazed Pilot. Possibly there is another switch that with creative
wiring will give off-on-on. If so please advise and include the creative
wiring required. I could go with a on-off-on and have what I need but I would
like to keep all off functions down which is why I am searching for the requested
switch,
>
> Thanks
> Paul Eckenroth
Message 12
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: RockRack Switches |
Is this what you're looking for?
http://www.aircraftspruce.com/catalog/pdf/RockRack-connections.pdf
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465813#465813
Message 13
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Probably will not work. By solenoid, I assume that you mean relay. Once pulled
in, a relay will hold with half voltage. The problem is pulling it in initially.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465814#465814
Message 14
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Single EPL101x Series Dimmer For Dynon Skyview |
Brightness a
Charlie and Joe,
As always I am very grateful for your help.
So the "DIM OUTPUT" signal is essentially a "variable ground" (I think they could
have called it something different than "output"...just say 'in).
The Skyview manual states that the DIM OUTPUT "can sink a maximum current of 120mA
and a maximum voltage of 40V." So for my landing light circuit simply branch
off one extra wire from the same spade as the circuit that goes to the landing
light (+) and run this second wire to the (+) spade of the switch indicator
light?
I just received this from the dimmer manufacturer: "To clarify, the EPL1012 is
a pulse width modulated power switch and not a rheostat. The switching takes
place between the red wire and the black wire. The white wire supplies power
to the switching circuit at around 300 Hz. Please note that there is no current
limiting within the dimmer."
Since the dimmer is essentially a variable voltage digital signal I am curious
to see if it would work for the pin 25. I am hoping against hope because I already
cut the hole in my panel for the dimmer...and I really like the looks of
the little knob. I will ask Dynon.
THANKS AGAIN!!!!
..
Cheers!!!
Bill Hunter
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of user9253
Sent: Sunday, February 5, 2017 2:10 PM
Subject: AeroElectric-List: Re: Single EPL101x Series Dimmer For Dynon Skyview
Brightness a
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 need to be connect 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.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465809#465809
Message 15
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Single EPL101x Series Dimmer For Dynon Skyview |
Brightness a
I wondered about whether that gadget was just a potentiometer, but there
wasn't enough info in the brochure to tell. You might be able to use it
to control overall system brightness, but you need to consult the manual
(and Dynon).
You *really* need to speak with, as in on the phone, Dynon. Again, I
don't have the manual. But your description of the language indicates
that pin 25 is the pin I mentioned in my earlier email. Key words are
'output' and 'sink'. They didn't call it an 'in' because it isn't
listening; it's controlling. Sink type controls can be really confusing
to understand, if you're not 'electron indoctrinated'. :-) Think of it
like the Master switch in the Z diagrams; the Master is a sink-type
control for the master contactor. It works on the ground side of the
circuit. (Double E's, please forgive the analogy...)
If we're getting the full picture on what the pin is doing, you would
connect bus supply voltage to any LEDs you want lit, and the other leads
would be collected and tied to pin 25. The LEDs' brightness will then
track the Skyview's brightness. You have to be sure that the total
current of all the LEDs added together is less than 120mA (which isn't
much). Also, know that if you have LEDs of different pedigrees, they
will all track the Skyview, but will likely have different relative
intensities. That can be adjusted by inserting various value resisters
in each LED's circuit (another discussion).
For dimming a landing light *indicator* LED, you'd tie the load side of
the switch (the + terminal of the landing light) to the indicator LED,
and the other terminal of the indicator LED to pin 25.
Charlie
On 2/5/2017 6:52 PM, William Hunter wrote:
>
> Charlie and Joe,
>
> As always I am very grateful for your help.
>
> So the "DIM OUTPUT" signal is essentially a "variable ground" (I think they could
have called it something different than "output"...just say 'in).
>
> The Skyview manual states that the DIM OUTPUT "can sink a maximum current of
120mA and a maximum voltage of 40V." So for my landing light circuit simply branch
off one extra wire from the same spade as the circuit that goes to the landing
light (+) and run this second wire to the (+) spade of the switch indicator
light?
>
> I just received this from the dimmer manufacturer: "To clarify, the EPL1012
is a pulse width modulated power switch and not a rheostat. The switching takes
place between the red wire and the black wire. The white wire supplies power
to the switching circuit at around 300 Hz. Please note that there is no current
limiting within the dimmer."
>
> Since the dimmer is essentially a variable voltage digital signal I am curious
to see if it would work for the pin 25. I am hoping against hope because I
already cut the hole in my panel for the dimmer...and I really like the looks
of the little knob. I will ask Dynon.
>
> THANKS AGAIN!!!!
> ..
>
> Cheers!!!
>
> Bill Hunter
>
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of user9253
> Sent: Sunday, February 5, 2017 2:10 PM
> To: aeroelectric-list@matronics.com
> Subject: AeroElectric-List: Re: Single EPL101x Series Dimmer For Dynon Skyview
Brightness a
>
>
> 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 need to be connect 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.
>
> --------
> Joe Gores
Message 16
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Single EPL101x Series Dimmer For Dynon Skyview |
Brightness a
It seems that the EPL1012 and the SkyView work the same. They both pulse the negative
supply. Connecting the EPL1012 directly to the SkyView DIM INPUT (Pin
25) is unlikely to work. But it might be possible to connect resistors and a
capacitor between the output of the EPL1012 and pin 25 of the SkyView to smooth
out the pulses.
It would be a whole lot easier to use a potentiometer instead of the EPL1012
. Maybe one can be found to fit the hole that you drilled. What size hole is
it?
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=465825#465825
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|