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OV/LV light (was: UV Light)

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nuckollsr(at)cox.net
Guest

Posted: Wed Mar 22, 2006 6:06 am Post subject: OV/LV light (was: UV Light)

At 06:24 PM 3/21/2006 -0600, you wrote:



 	  Quote: 	
		  



Bob,

I will try this again. The first time I tried to snip. Didn't work.

The OV/LV sensor came from B&C.


	


 	  Quote: 	
		  The light comes on steady when the mic is keyed. We aslo thought if might be

RF.


	


    Could be. I don't remember details of the design.

    It may have some sensitivity to RF . . particularly

    from hand held radios.



 	  Quote: 	
		  Today, while doing a cowl off inspection, I noticed that the small stranded

wire from the large post to the small post on the S701-1 over voltage

dissconnect contactor was burned in two.


	


    The S701-1 comes wired for use as a battery master contactor.

    For use as an alternator disconnect relay, that wire should

    be removed. Looks like the system removed it for you. Check

    the schematic.

 	  Quote: 	
		    I did have a OV trip a few months

back while taxi testing, but figured it was a nuisance trip. Without the

small wire the alternator has been functioning.


	


    Yup.



 	  Quote: 	
		    The battery seems to have

full charge. Did not use a tester it was at home. Just looked at the

voltmeter. Turning the master on did not bring up the LV sensor light.

Any ideas?


	


    Use a voltmeter to see if the bus voltage is sufficiently

    low to cause the light to come on. I think it's calibrated

    to come on at 12.5 and below. Your battery won't drop below

    that level until you load it. I.e., turn on some stuff with

    the alternator OFF and wait a minute or so.



    Bob . . .

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Jerry Grimmonpre'

Joined: 09 Jan 2006
Posts: 144
Location: Huntley, Illinois 60142

Posted: Wed Mar 22, 2006 7:17 am Post subject: OV/LV light (was: UV Light)

Bob ...

How does the alternator disconnect relay do it's job?  None of the Z's show 

this relay between the alternators and the schematic wiring.  Is this relay 

an add-on to the ANL approach or the field CB?  What is the most reliable 

hardware to protect from OV?  Slogging through electrical in Illinois ...

Jerry Grimmonpre'

 	  Quote: 	
		  >Today, while doing a cowl off inspection, I noticed that the small 

>stranded

>wire from the large post to the small post on the S701-1 over voltage

>dissconnect contactor was burned in two.



    The S701-1 comes wired for use as a battery master contactor.

    For use as an alternator disconnect relay, that wire should

    be removed. Looks like the system removed it for you. Check

    the schematic.

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nuckollsr(at)cox.net
Guest

Posted: Wed Mar 22, 2006 8:07 am Post subject: OV/LV light (was: UV Light)

At 09:16 AM 3/22/2006 -0600, you wrote:



 	  Quote: 	
		  



Bob ...

How does the alternator disconnect relay do it's job?  None of the Z's show

this relay between the alternators and the schematic wiring.  Is this relay

an add-on to the ANL approach or the field CB?  What is the most reliable

hardware to protect from OV?  Slogging through electrical in Illinois ...

Jerry Grimmonpre'


	


   Z-24 was temporarily removed from the z-figures when

   some folks discovered that a pilot might induce a

   load dump failure of the alternator's regulator

   by manipulating the control switch at inappropriate

   times. Hence the idea for a system that allows

   any-time, any-conditions, no-hazard, absolute

   control over an IR alternator.



   Revision A has been crafted and work is plodding along

   to make it a reality. If my boss were as interested in

   working on RVs and Kitfoxes as he is in Hawkers and

   Kingairs, this project would be moving along faster.





 	  Quote: 	
		   >>Today, while doing a cowl off inspection, I noticed that the small

 >>stranded

 >>wire from the large post to the small post on the S701-1 over voltage

 >>dissconnect contactor was burned in two.

 >

 >    The S701-1 comes wired for use as a battery master contactor.

 >    For use as an alternator disconnect relay, that wire should

 >    be removed. Looks like the system removed it for you. Check

 >    the schematic.


	


    You can see the old z-24 drawing at:



http://www.aeroelectric.com/temp/Z24_temp.pdf



    I presume this is what you have installed if you had

    a "nuisance trip" earlier. The fact that you burned the

    extra jumper raises concerns about whether or not your

    ov module has been damaged.



    Send it to me for a checkup.



    Bob . . .

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

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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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trumanst(at)netins.net
Guest

Posted: Wed Mar 22, 2006 2:30 pm Post subject: OV/LV light (was: UV Light)

Thanks Bob.

As always, you have cleared things up. Z24 shows what you are speaking of

with reguard to the small wire.

Again Many Thanks

Kevin 

on 3/22/06 8:03 AM, Robert L. Nuckolls, III at nuckollsr(at)cox.net wrote:

 	  Quote: 	

 <nuckollsr(at)cox.net>

 At 06:24 PM 3/21/2006 -0600, you wrote:

> 

> 

> Bob,

> I will try this again. The first time I tried to snip. Didn't work.

> The OV/LV sensor came from B&C.

> The light comes on steady when the mic is keyed. We aslo thought if might be

> RF.

 Could be. I don't remember details of the design.

 It may have some sensitivity to RF . . particularly

 from hand held radios.

> Today, while doing a cowl off inspection, I noticed that the small stranded

> wire from the large post to the small post on the S701-1 over voltage

> dissconnect contactor was burned in two.

 The S701-1 comes wired for use as a battery master contactor.

 For use as an alternator disconnect relay, that wire should

 be removed. Looks like the system removed it for you. Check

 the schematic.

> I did have a OV trip a few months

> back while taxi testing, but figured it was a nuisance trip. Without the

> small wire the alternator has been functioning.

 Yup.

> The battery seems to have

> full charge. Did not use a tester it was at home. Just looked at the

> voltmeter. Turning the master on did not bring up the LV sensor light.

> Any ideas?

 Use a voltmeter to see if the bus voltage is sufficiently

 low to cause the light to come on. I think it's calibrated

 to come on at 12.5 and below. Your battery won't drop below

 that level until you load it. I.e., turn on some stuff with

 the alternator OFF and wait a minute or so.

 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

trumanst(at)netins.net
Guest

Posted: Wed Mar 22, 2006 2:49 pm Post subject: OV/LV light (was: UV Light)

Bob,

Yes I do have it wired as per Z24.

I would be happy to send the ov Module. Is it OK to fly without it ?

Kevin



on 3/22/06 10:05 AM, Robert L. Nuckolls, III at nuckollsr(at)cox.net wrote:



 	  Quote: 	
		   

 <nuckollsr(at)cox.net>

 

 At 09:16 AM 3/22/2006 -0600, you wrote:

 

> 

> 

> Bob ...

> How does the alternator disconnect relay do it's job?  None of the Z's show

> this relay between the alternators and the schematic wiring.  Is this relay

> an add-on to the ANL approach or the field CB?  What is the most reliable

> hardware to protect from OV?  Slogging through electrical in Illinois ...

> Jerry Grimmonpre'

 

 Z-24 was temporarily removed from the z-figures when

 some folks discovered that a pilot might induce a

 load dump failure of the alternator's regulator

 by manipulating the control switch at inappropriate

 times. Hence the idea for a system that allows

 any-time, any-conditions, no-hazard, absolute

 control over an IR alternator.

 

 Revision A has been crafted and work is plodding along

 to make it a reality. If my boss were as interested in

 working on RVs and Kitfoxes as he is in Hawkers and

 Kingairs, this project would be moving along faster.

 

 

 

 

>>> Today, while doing a cowl off inspection, I noticed that the small

>>> stranded

>>> wire from the large post to the small post on the S701-1 over voltage

>>> dissconnect contactor was burned in two.

>> 

>> The S701-1 comes wired for use as a battery master contactor.

>> For use as an alternator disconnect relay, that wire should

>> be removed. Looks like the system removed it for you. Check

>> the schematic.

 

 You can see the old z-24 drawing at:

 

 http://www.aeroelectric.com/temp/Z24_temp.pdf

 

 I presume this is what you have installed if you had

 a "nuisance trip" earlier. The fact that you burned the

 extra jumper raises concerns about whether or not your

 ov module has been damaged.

 

 Send it to me for a checkup.

 

 Bob . . .

 

 

 < What is so wonderful about scientific truth...is that >

 < the authority which determines whether there can be   >

 < debate or not does not reside in some fraternity of   >

 < scientists; nor is it divine. The authority rests     >

 < with experiment.                                      >

 <                            --Lawrence M. Krauss       >

- 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

nuckollsr(at)cox.net
Guest

Posted: Wed Mar 22, 2006 6:09 pm Post subject: OV/LV light (was: UV Light)

At 04:34 PM 3/22/2006 -0600, you wrote:



 	  Quote: 	
		  



Thanks Bob.

As always, you have cleared things up. Z24 shows what you are speaking of

with reguard to the small wire.

Again Many Thanks

Kevin


	


   My pleasure.



   Bob . . .

- The Matronics AeroElectric-List Email Forum -

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nuckollsr(at)cox.net
Guest

Posted: Wed Mar 22, 2006 6:09 pm Post subject: OV/LV light (was: UV Light)

At 04:56 PM 3/22/2006 -0600, you wrote:



 	  Quote: 	
		  



Bob,

Yes I do have it wired as per Z24.

I would be happy to send the ov Module. Is it OK to fly without it ?

Kevin


	


   sure . . . risks are low but not zero. I'll turn it around quickly.



   Bob . . .

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trumanst(at)netins.net
Guest

Posted: Wed Mar 22, 2006 6:41 pm Post subject: OV/LV light (was: UV Light)

Great. I will get it in the mail ASAP.

Thanks,

Kevin

on 3/22/06 8:02 PM, Robert L. Nuckolls, III at nuckollsr(at)cox.net wrote:

 	  Quote: 	

 <nuckollsr(at)cox.net>

 At 04:56 PM 3/22/2006 -0600, you wrote:

> 

> 

> Bob,

> Yes I do have it wired as per Z24.

> I would be happy to send the ov Module. Is it OK to fly without it ?

> Kevin

 sure . . . risks are low but not zero. I'll turn it around quickly.

 Bob . . .

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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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trumanst(at)netins.net
Guest

Posted: Thu Mar 23, 2006 6:23 pm Post subject: OV/LV light (was: UV Light)

Bob,

I have the OV module in hand.

What is your mailing address?

Thanks,

 Kevin

on 3/22/06 8:02 PM, Robert L. Nuckolls, III at nuckollsr(at)cox.net wrote:

 	  Quote: 	

 <nuckollsr(at)cox.net>

 At 04:56 PM 3/22/2006 -0600, you wrote:

> 

> 

> Bob,

> Yes I do have it wired as per Z24.

> I would be happy to send the ov Module. Is it OK to fly without it ?

> Kevin

 sure . . . risks are low but not zero. I'll turn it around quickly.

 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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