Self exciting an alternator
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Lead Driver
Joined: Nov 2000
Posts: 6,628
Likes: 345
From: Albuquerque
Self exciting an alternator
No I don't mean rubbing it real hard!
Not much response over in electrical.
I have a Power Master 140a alternator that can be run either one wire or three wire. By connecting a reference voltage to terminal no. 1 it "self excites" or turns on immediately without need to rev the engine as in a one wire set up. Mine works in this fashion.
However if you have a factory amp guage you need a diode in series or the engine will not turn off with the key. My problem is with the diode in there it will not self excite. Very perplexing! The diode checks good, the band is toward the alternator and voltage is present on it's end with the key in run position.
Any ideas? Do I need an exocism???
Not much response over in electrical.
I have a Power Master 140a alternator that can be run either one wire or three wire. By connecting a reference voltage to terminal no. 1 it "self excites" or turns on immediately without need to rev the engine as in a one wire set up. Mine works in this fashion.
However if you have a factory amp guage you need a diode in series or the engine will not turn off with the key. My problem is with the diode in there it will not self excite. Very perplexing! The diode checks good, the band is toward the alternator and voltage is present on it's end with the key in run position.
Any ideas? Do I need an exocism???
Laughing Gas
Joined: Jan 2004
Posts: 913
Likes: 2
From: Pensacola, FL
that doesnt make any sense to me. turning the key off kills power to the coil via the solenoid. a resistor, or diode, inline with the alt should have no effect on wether the truck stays running or not, as far as the position of the key is concerned.
New User
Joined: Jan 2003
Posts: 23
Likes: 0
From: Alberta,Canada
Originally Posted by beartracks
No I don't mean rubbing it real hard!
Not much response over in electrical.
I have a Power Master 140a alternator that can be run either one wire or three wire. By connecting a reference voltage to terminal no. 1 it "self excites" or turns on immediately without need to rev the engine as in a one wire set up. Mine works in this fashion.
However if you have a factory amp guage you need a diode in series or the engine will not turn off with the key. My problem is with the diode in there it will not self excite. Very perplexing! The diode checks good, the band is toward the alternator and voltage is present on it's end with the key in run position.
Any ideas? Do I need an exocism???
Not much response over in electrical.
I have a Power Master 140a alternator that can be run either one wire or three wire. By connecting a reference voltage to terminal no. 1 it "self excites" or turns on immediately without need to rev the engine as in a one wire set up. Mine works in this fashion.
However if you have a factory amp guage you need a diode in series or the engine will not turn off with the key. My problem is with the diode in there it will not self excite. Very perplexing! The diode checks good, the band is toward the alternator and voltage is present on it's end with the key in run position.
Any ideas? Do I need an exocism???
It was a bit challanging to figure out what to do with the factory Fusable link and make it protect ignition system but I figured it out.
