Today's Message Index:
----------------------
1. 12:19 AM - Whelen Flashing on One side Ceases after a Minute or so (George Nielsen)
2. 08:41 AM - Re: Static On GTN-650 (Edwardmoonlight)
3. 08:41 AM - Re: Static On GTN-650 (Edwardmoonlight)
4. 08:47 AM - Re: Z101 in an RV-10 (Edwardmoonlight)
5. 08:57 AM - Re: Z101 in an RV-10 (Edwardmoonlight)
6. 10:43 AM - Re: Z101 with two B&C Regulators (Robert L. Nuckolls, III)
7. 10:57 AM - Re: Z101B Aux Alternator and Overvoltage protection (Robert L. Nuckolls, III)
8. 12:20 PM - Re: Whelen Flashing on One side Ceases after a Minute or so (Rob Turk)
9. 01:50 PM - Re: Re: Low voltage warning light (Peter Pengilly)
10. 02:34 PM - Re: Re: Low voltage warning light (DANIEL PELLETIER)
11. 05:30 PM - Re: Z101 with two B&C Regulators (Jared Yates)
12. 05:41 PM - Re: Z101 with two B&C Regulators (Charlie England)
Message 1
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| Subject: | Whelen Flashing on One side Ceases after a Minute or |
so
Initially my Whelen flasher works on both the starboard and port wing.
After about a minute of flashing it ceases to work on the starboard wing
but continues on the port wing. This has been repeated with the same
result every time so I doubt whether the bulb or wiring are at fault.
What could be the problem and how can I make both sides flash
continuously? Thanks.
George Nielsen
Avid Flyer I-6640
The Hague, the Netherlands
Message 2
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| Subject: | Re: Static On GTN-650 |
It is necessary to read the comments about the product, if you have not ordered
it, it is not worth the risk.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=505327#505327
Message 3
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| Subject: | Re: Static On GTN-650 |
You don't have to buy everything on Amazon.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=505326#505326
Message 4
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| Subject: | Re: Z101 in an RV-10 |
It's a complicated question, but an interesting one.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=505328#505328
Message 5
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| Subject: | Re: Z101 in an RV-10 |
If the main fails, Ill get a low voltage indication and will take the main alternator
offline manually before engaging the aux alternator.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=505329#505329
Message 6
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| Subject: | Re: Z101 with two B&C Regulators |
At 03:39 AM 12/19/2021, you wrote:
>If a person was going to use a B&C regulator for
>the standby alternator (SD-20, now BC410-H)
>instead of the Ford regulator, would it be
>better to use the LR3D or the SB1B?=C2
use the cheaper one. ancillary features over and
above rudimentary voltage regulation are
superfluous.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 7
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| Subject: | Re: Z101B Aux Alternator and Overvoltage protection |
>>For those with Z101B, what is your procedure for using the aux
>>alternator? My initial thought was to turn on the aux alternator
>>with the main alternator and use a lower voltage setpoint for the
>>aux regulator. This allows the aux alternator to take over without
>>intervention if the main alternator fails.
that was a 'feel-good' feature crafted for the
TC aircraft manufacturers who were adding the
SD20 and cousins to their production aircraft.
It adds complexity and cost to the device without
materially improving safety.
>>This causes a different problem, however. The main regulator could
>>fail resulting in an overvoltage condition. The crowbar
>>overvoltage protection circuits would blow the aux alt fuse and
>>trip the main field circuit breaker. Z101B shows the aux alt fuse
>>forward of the firewall so it can't be replaced in
>>flight. Essentially, an overvoltage event on the main regulator
>>will take out both alternators.
If memory serves, all the B&C regulators
with built in crowbar feature a field voltage
monitor loop . . . I can't remember which
model got it first but I think they eventually
all had it. When an OV is sensed, the trip
logic looks at field voltage. If the voltage
is 'high' then the logic assumes LOCAL
failure of the regulator and trips the system.
I field voltage is 'low' then the logic knows
that its companion regulator is functioning
and OV trip is INHIBITED.
>>The solutions I can think of are:
>>* Enable the aux alternator only in case of main alternator failure.
I would do this anyhow. There is no value
added by millisecond response to bringing the
aux alterantor on line.
>>* Move the aux field breaker/fuse to the main bus so it can be in
>>the cabin, but this removes some fault tolerance of the design.
Not necessary
>>* Come up with an arrangement for the aux regulator that allows a
>>slightly longer period before the overvoltage protection
>>activates. This seems like a fragile solution though.
Correct. Already fixed.
>>Note: My aux alternator is a BC410 with an LR3C regulator.
Check with B&C . . . my drawings for that product
are quite old and of uncertain validity. Inquire
as to whether the LR3C incorporates 'selective
OV trip'. I am pretty sure it does but getting
info from the source is certain.
>>Interested in hearing people's procedures for the aux alt switch
>>and/or if they've deviated from the Z101B wiring diagram to solve this problem
It's a problem that doesn't need solving. The aux alternator
should be off-line 99.99% of all operations. In fact, it's
duty factors are so small and it's tested every
flight cycle, I didn't even include OV protection in
Z101. Selective tripping isn't needed for independently
operated alternators. Hence, a builder could consider
a alternative alternator controller products for
either/both alternators.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 8
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| Subject: | Re: Whelen Flashing on One side Ceases after a Minute |
or so
Hello George,
If you have the Whelen central power box, you can swap left and right
strobe connectors and see if the problem moves with the connection. If
it does, then the problem is in the power box. If it still fails on the
same side then it's with the wiring/bulb on that side.
Cheers,
Rob
Hoevelaken ;)
On 12/21/2021 9:17 AM, George Nielsen wrote:
> <genie@swissmail.org>
>
> Initially my Whelen flasher works on both the starboard and port wing.
> After about a minute of flashing it ceases to work on the starboard
> wing but continues on the port wing. This has been repeated with the
> same result every time so I doubt whether the bulb or wiring are at
> fault. What could be the problem and how can I make both sides flash
> continuously? Thanks.
>
> George Nielsen
> Avid Flyer I-6640
> The Hague, the Netherlands
>
>
Message 9
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| Subject: | Re: Low voltage warning light |
Daniel,
I can only see two wig-wag modules, some cable and switch guards on your website!
You used to have some great stuff, dimmers and these low-volts lights, where has
it all gone?
Peter
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com <owner-aeroelectric-list-server@matronics.com>
On Behalf Of DANIEL PELLETIER
Sent: 20 December 2021 23:06
Subject: Re: AeroElectric-List: Re: Low voltage warning light
--> <pelletie1959@me.com>
You can buy these on my website PerihelionDesign.com for $49.95. I have to charge
shipping of $10.00. The standard is red, blinking or steady. Please specify.
I can also supply other colors.
Envoy de mon iPad
> Le 19 dc. 2021 09:41, John M Tipton <johntiptonuk@hotmail.com> a crit :
>
> <johntiptonuk@hotmail.com>
>
> Hi Peter - Its a pity 'Bob' doesn't produce his AEC9005-201 'Low
> Voltage' module any more, even the parts kit would be good for a home
> build project if it were available - John
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=505303#505303
>
>
>
>
>
>
>
>
>
Message 10
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| Subject: | Re: Low voltage warning light |
Sorry,
It seems that the device is discontinued and no more available. Maybe you can write
to the guy if he have some in stock.
I copied the email he sended to me last year when I bought mine.
Daniel
Envoy de mon iPhone
> Le 21 dc. 2021 16:56, Peter Pengilly <peter@sportingaero.com> a crit :
>
>
> Daniel,
>
> I can only see two wig-wag modules, some cable and switch guards on your website!
> You used to have some great stuff, dimmers and these low-volts lights, where
has it all gone?
>
> Peter
>
> -----Original Message-----
> From: owner-aeroelectric-list-server@matronics.com <owner-aeroelectric-list-server@matronics.com>
On Behalf Of DANIEL PELLETIER
> Sent: 20 December 2021 23:06
> To: aeroelectric-list@matronics.com
> Subject: Re: AeroElectric-List: Re: Low voltage warning light
>
> --> <pelletie1959@me.com>
>
> You can buy these on my website PerihelionDesign.com for $49.95. I have to charge
shipping of $10.00. The standard is red, blinking or steady. Please specify.
I can also supply other colors.
>
> Envoy de mon iPad
>
>> Le 19 dc. 2021 09:41, John M Tipton <johntiptonuk@hotmail.com> a crit :
>>
>> <johntiptonuk@hotmail.com>
>>
>> Hi Peter - Its a pity 'Bob' doesn't produce his AEC9005-201 'Low
>> Voltage' module any more, even the parts kit would be good for a home
>> build project if it were available - John
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=505303#505303
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
>
>
Message 11
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| Subject: | Re: Z101 with two B&C Regulators |
Thank you Bob, I've been hearing about using an off-the-shelf fuse link
product instead of the ones made from a short piece of wire. What is the
latest plan in that regard, and if using a produced product, do you have a
link to an example?
On Sun, Dec 19, 2021 at 1:01 PM Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 03:39 AM 12/19/2021, you wrote:
>
> If a person was going to use a B&C regulator for the standby alternator
> (SD-20, now BC410-H) instead of the Ford regulator, would it be better to
> use the LR3D or the SB1B?=C3=82
>
> Also, relating the old switch terminology to Z101, are the master/alt and
> aux bus/aux alt switches what we would have called the 2-10, on-on-on?
>
>
> Suggest you use the cheapest one you can put
> your hands on.
>
> In the vast majority of installations, the s/b regulator
> will never see service under duress. Alternator system
> failures are rare. The s/b system is just that: 'stand by'.
> It should be preflight tested every flight cycle
> and then sit dormant the rest of the time.
>
> The system has an EXPECTED service
> life of thousands of hours but needed only
> minutes over it's total existence in your
> project. It is lightly used but often tested.
> Likelihood that it would become unavailable
> when needed is on the same order of probability
> of being brought down by a failure of prop bolts.
>
> A full-featured alternator controller in the s/b
> system secures no benefit. That's why z101 suggests
> a $15, Smiley Jack's Auto Parts regulator.
> All that extra cash will buy you a couple
> trips worth of fuel which is a positive
> return on investment.
>
> Yes, that symbol is unique to the on-on-on
> function of a 2-10 switch.
>
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
Message 12
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| Subject: | Re: Z101 with two B&C Regulators |
Sorry if I haven't followed this thread closely enough, but if you're
talking about protecting the alternator B-lead, you can get fusible link
wire from Amazon, as well as (probably) auto parts stores.
https://smile.amazon.com/s?k=fusible+link+wire&crid=1PLYTS1HT90M0&sprefix=fusible+link+wire%2Caps%2C166&ref=nb_sb_noss_1
Ignore the 1st couple of bizarre hits, and scroll down for the wire
products. Just use a link gauge 4 numbers (bigger number) smaller than
your B lead size.
Charlie
On 12/21/2021 7:27 PM, Jared Yates wrote:
> Thank you Bob, I've been hearing about using an off-the-shelf fuse
> link product instead of the ones made from a short piece of wire. What
> is the latest plan in that regard, and if using a produced product, do
> you have a link to an example?
>
> On Sun, Dec 19, 2021 at 1:01 PM Robert L. Nuckolls, III
> <nuckolls.bob@aeroelectric.com> wrote:
>
> At 03:39 AM 12/19/2021, you wrote:
>> If a person was going to use a B&C regulator for the standby
>> alternator (SD-20, now BC410-H) instead of the Ford regulator,
>> would it be better to use the LR3D or the SB1B?
>>
>> Also, relating the old switch terminology to Z101, are the
>> master/alt and aux bus/aux alt switches what we would have called
>> the 2-10, on-on-on?
>>
>
> Suggest you use the cheapest one you can put
> your hands on.
>
> In the vast majority of installations, the s/b regulator
> will never see service under duress. Alternator system
> failures are rare. The s/b system is just that: 'stand by'.
> It should be preflight tested every flight cycle
> and then sit dormant the rest of the time.
>
> The system has an EXPECTED service
> life of thousands of hours but needed only
> minutes over it's total existence in your
> project. It is lightly used but often tested.
> Likelihood that it would become unavailable
> when needed is on the same order of probability
> of being brought down by a failure of prop bolts.
>
> A full-featured alternator controller in the s/b
> system secures no benefit. That's why z101 suggests
> a $15, Smiley Jack's Auto Parts regulator.
> All that extra cash will buy you a couple
> trips worth of fuel which is a positive
> return on investment.
>
> Yes, that symbol is unique to the on-on-on
> function of a 2-10 switch.
>
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
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