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nuckolls.bob(at)aeroelect
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 Posted: Mon Dec 30, 2019 8:00 am Post subject: B&C voltage regulator low voltage warning (ADDENDUM) |
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At 04:03 PM 12/28/2019, you wrote:
| Quote: | --> AeroElectric-List message posted by: "markfw" < (at)icloud.com>
Bob,
I could use two of the RED high intensity bulbs.
I assume you will tell me how to pay. |
shoot me an address
| Quote: | | To finish off another thread, if I have a 40 amp alternator and I want to fuse-protect the B-lead would you recommend a 50 amp (or other) ANL fuse somewhere forward, like on the firewall? |
Mount a MANL40 (miniature ANL)
as close to starter contactor as
practical as illustrated in z-figures.
https://tinyurl.com/sru9gam
There are a number of offerings
for MANL fuseholders. Avoid the
'auto-audio' types that attach
the feedlines by mashing down on
the ends with a setscrew . . .
[img]cid:.0[/img]
Use a two-stud style only with your
feeder terminals in direct contact
with the fuse tabs.
You could make your own out of delrin
or phenolic . . . two bolts and an
assortment of nuts and washers.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Mon Dec 30, 2019 11:35 am Post subject: B&C voltage regulator low voltage warning (ADDENDUM) |
|
|
At 04:03 PM 12/28/2019, you wrote:
| Quote: | --> AeroElectric-List message posted by: "markfw" < (at)icloud.com>
Bob,
I could use two of the RED high intensity bulbs.
I assume you will tell me how to pay. |
shoot me an address
| Quote: | | To finish off another thread, if I have a 40 amp alternator and I want to fuse-protect the B-lead would you recommend a 50 amp (or other) ANL fuse somewhere forward, like on the firewall? |
Mount a MANL40 (miniature ANL)
as close to starter contactor as
practical as illustrated in z-figures.
https://tinyurl.com/sru9gam
There are a number of offerings
for MANL fuseholders. Avoid the
'auto-audio' types that attach
the feedlines by mashing down on
the ends with a setscrew . . .
[img]cid:.0[/img]
Use a two-stud style only with your
feeder terminals in direct contact
with the fuse tabs.
You could make your own out of delrin
or phenolic . . . two bolts and an
assortment of nuts and washers.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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| Description: |
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| Filesize: |
30.05 KB |
| Viewed: |
4386 Time(s) |
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Tue Dec 31, 2019 12:57 pm Post subject: B&C voltage regulator low voltage warning (ADDENDUM) |
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At 11:18 PM 12/30/2019, you wrote:
| Quote: | Deems reports that B&C is recommending a 470 ohm resistor between terminals 3 and 5, but the drawing
http://aeroelectric.com/Pictures/Schematics/LR3_LV_Led_1.jpg
seems to me to show a resistance of more like 940 ohms between the two terminals, ignoring the parallel resistance of the diode.Â
Will either arrangement work? |
I think the image above shows TWO resistors, one
across the lamp, a second in series with the lamp.
This configuration is used when you supply your
own, rudimentary LED (a 4 volt device).
If your proposed LED annunciator already features
a built in series resistor (12v device) then
you use ONE resistor between 3 and 5 on regulator.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Tue Dec 31, 2019 1:04 pm Post subject: B&C voltage regulator low voltage warning (ADDENDUM) |
|
|
At 11:18 PM 12/30/2019, you wrote:
| Quote: | Deems reports that B&C is recommending a 470 ohm resistor between terminals 3 and 5, but the drawing
http://aeroelectric.com/Pictures/Schematics/LR3_LV_Led_1.jpg
seems to me to show a resistance of more like 940 ohms between the two terminals, ignoring the parallel resistance of the diode.Â
Will either arrangement work? |
I think the image above shows TWO resistors, one
across the lamp, a second in series with the lamp.
This configuration is used when you supply your
own, rudimentary LED (a 4 volt device).
If your proposed LED annunciator already features
a built in series resistor (12v device) then
you use ONE resistor between 3 and 5 on regulator.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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nuckolls.bob(at)aeroelect
Guest
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| Posted: Wed Jan 01, 2020 8:54 am Post subject: B&C voltage regulator low voltage warning (ADDENDUM) |
|
|
At 11:18 PM 12/30/2019, you wrote:
| Quote: | Deems reports that B&C is recommending a 470 ohm resistor between terminals 3 and 5, but the drawing
http://aeroelectric.com/Pictures/Schematics/LR3_LV_Led_1.jpg
seems to me to show a resistance of more like 940 ohms between the two terminals, ignoring the parallel resistance of the diode.Â
Will either arrangement work? |
I think the image above shows TWO resistors, one
across the lamp, a second in series with the lamp.
This configuration is used when you supply your
own, rudimentary LED (a 4 volt device).
If your proposed LED annunciator already features
a built in series resistor (12v device) then
you use ONE resistor between 3 and 5 on regulator.
Bob . . .
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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markfw
Joined: 28 Feb 2019
Posts: 27
Location: Seattle, WA
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| Posted: Thu Jan 02, 2020 4:59 pm Post subject: Re: B&C voltage regulator low voltage warning (ADDENDU |
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Bob,
thanks for the info about the MANL fuse.
My address is:
1009 Western Ave #1207
Seattle, WA 98104
Mark
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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