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SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Fri Jan 01, 2010 10:59 am
by bjrichar
Greetings,
Preparing to label, diagram, and wire up Two Alternators (#4023), a Dual Alternator Controller and the SAR V3, I came accross a question. At the connection for the SAR V3 at ALT.GND, will the correct wiring be a wire from each GND post of each alternator (2 #14 wires), and a wire from the Dual Alternator Controller TB1-9, ALT-REG (1 #16 wire) ? Or is the Dual Alternator Controller providing the ground connection for the SAR V3 through DAC/ TB1-10 GND-IN and the Negative Distribution post? All else appears very clear and straight forward for the interconnection.
Thank you for your assistance.

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Sat Jan 02, 2010 5:36 pm
by Coulomb
The DAC provides the ground for the SAR. Do not wire to each alternator or you may end up with burned up wires.

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Sat Jan 02, 2010 7:16 pm
by bjrichar
Thank you. That's two less wires in the bundle adding to the clutter.

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Fri Oct 21, 2011 10:38 am
by mbarbian
Hi,
I just wanted to confirm. In the situation described there will be no wire/s connected to the Alt Gnd terminal on the SarV3. I thought I read a conflicting answer in another post.
Thanks,
Mark Barbian

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Fri Oct 21, 2011 5:54 pm
by Coulomb
Not correct.

Look at the table in the DAC manual and compare the pins in that table with the SARV3 wiring diagram.

Regulator On/Off Gnd B+ FLD
SAR V3 Pin 2 Pin 6 Pin 4 Pin 5

The wiring diagram and manual for the DAC has been updated to show Alt. Gnd instead of just ground.
http://www.amplepower.com/manuals/dac/index.html

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Sun Oct 23, 2011 1:03 pm
by mbarbian
Hi,
Thanks for the reply and the update to the Dac manual. Do I still take a wire from neg. dist. to ground on the SarV3 as well?
Thanks,
Mark

Re: SAR V3 to Dual Alternator Controller ALT GND

PostPosted: Sun Oct 23, 2011 11:36 pm
by Coulomb
Connect the wires between the DAC and the regulator first.

All wires on the regulator not connected to the DAC get wired according to the SARV3 manual.