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External voltage regulator Connections

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clouduster(at)austin.rr.c
Guest

Posted: Mon Jul 10, 2006 2:25 pm Post subject: External voltage regulator Connections

I converted my RX-8 computer controlled alternator (100 amp)  to 

externally regulated.  I purchased an Auto Zone VR 749 external 

regulator for a 100 amp alternator.  I have a question on how to connect 

the regulator to the system.

This is my best guess for the four pins - I, A, S , and F- on the regulator.

1). F on regulator goes to ungrounded brush in alternator.

2) A and S pins on regulator tie together and get fed from 5 amp breaker 

and switch.

3). I have no clue about the I pin on the regulator  - I'm guessing it 

is either an indicator light feed or connects to the ignition switch.

4). The B terminal on the alternator connects to the + at the contactor.



Anyone have better information?



Thanks,

Dennis H.

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nuckollsr(at)cox.net
Guest

Posted: Mon Jul 10, 2006 6:51 pm Post subject: External voltage regulator Connections

At 05:22 PM 7/10/2006 -0500, you wrote:



 	  Quote: 	
		  

<clouduster(at)austin.rr.com>



I converted my RX-8 computer controlled alternator (100 amp)  to 

externally regulated.  I purchased an Auto Zone VR 749 external regulator 

for a 100 amp alternator.  I have a question on how to connect the 

regulator to the system.

This is my best guess for the four pins - I, A, S , and F- on the regulator.

1). F on regulator goes to ungrounded brush in alternator.

2) A and S pins on regulator tie together and get fed from 5 amp breaker 

and switch.

3). I have no clue about the I pin on the regulator  - I'm guessing it is 

either an indicator light feed or connects to the ignition switch.


	


   Leave "I" unconnected.



   The VR-749 is one of several versions of the generic "Ford"

   regulator described in Note 21 and Figure Z-23 of

   http://aeroelectric.com/articles/Rev11/AppZ_R11H.pdf



 	  Quote: 	
		  4). The B terminal on the alternator connects to the + at the contactor.


	


   yes.



      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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FLYaDIVE(at)aol.com
Guest

Posted: Tue Jul 11, 2006 3:42 am Post subject: External voltage regulator Connections

In a message dated 7/10/06 6:27:51 PM Eastern Daylight Time, 

clouduster(at)austin.rr.com writes:



 	  Quote: 	
		   Anyone have better information?

  

  Thanks,

  Dennis H.

===============================
	


Dennis:



I = INDICATOR

A = ALTERNATOR

S = SWITCH

F = FIELD

BULB/LED GOES TO I AND TO +12 VDC ALT FIELD



Go to the ZIFTRONICS website and download their instruction sheet.



Barry

"Chop'd Liver"

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nuckollsr(at)cox.net
Guest

Posted: Tue Jul 11, 2006 5:29 am Post subject: External voltage regulator Connections

At 05:22 PM 7/10/2006 -0500, you wrote:



 	  Quote: 	
		  

<clouduster(at)austin.rr.com>



I converted my RX-8 computer controlled alternator (100 amp)  to 

externally regulated.  I purchased an Auto Zone VR 749 external regulator 

for a 100 amp alternator.  I have a question on how to connect the 

regulator to the system.

This is my best guess for the four pins - I, A, S , and F- on the regulator.

1). F on regulator goes to ungrounded brush in alternator.

2) A and S pins on regulator tie together and get fed from 5 amp breaker 

and switch.

3). I have no clue about the I pin on the regulator  - I'm guessing it is 

either an indicator light feed or connects to the ignition switch.


	


   Leave "I" unconnected.



   The VR-749 is one of several versions of the generic "Ford"

   regulator described in Note 21 and Figure Z-23 of

   http://aeroelectric.com/articles/Rev11/AppZ_R11H.pdf



 	  Quote: 	
		  4). The B terminal on the alternator connects to the + at the contactor.


	


   yes.



      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:

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clouduster(at)austin.rr.c
Guest

Posted: Wed Jul 12, 2006 5:03 am Post subject: External voltage regulator Connections

Thanks for the advice on connecting the external regulator.  I wound up 

using Bob's Z-23 regulator connection diagram.  The alternator is 

working great!.



Thanks Again!

Dennis H.

 	  Quote:

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