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No I haven't check them, like you I was assuming they were good since it generates power when the field is flashed. I know it's lin the service manual but is there a quick way to check them?

If I can find what is making it lose it's magnetism , and get it to where it can generate the 8-11 volts it's supposedly supposed to the Sx460 would work like a charm. I've seen only one sx460 conversion on this forum on a MEP-002a that works Craig A Tull's, I compared this conversion to his...

I'm 100% certain of that there is nothing else connected to the field circuit, just the sx460 and the 2 wires from the exciter circuit. I tried hooking everything up 100% by the book, even flashed the field by the book, leaving my exciter wiring disconnected, and got nothing from the generator...

could it just be that the genset is wore out? that it don't create enough power from it's residual magnetism to start with out being excited? ANd the process of exciting it is what is doing the avr in? the genset is painted tan and have read somewhere that the tan ones were overseas ran in the...

same result I'm thinking what ever nuked cvt1 is taking out the sx460 as well. it just blows my mind if you apply power directly to the exciter field it makes lots of power, but you install the sx460 the avr dies... found out the 56 ohm resistor limits the voltage from 12 down to about 5.5 volts...

Do you think changing it over so it monitors 120v instead of 220v change anything?

risking the sx460 I tried it without the diode again, it only trips the breaker from l1 the starts to generate power wildly got it shut down just as the voltage went over 200 on l1, last time I think what made the sx460 fail was the bad breaker that hit t he sx460 with over 40 amps on l1

I tried f1 on the anode side and f2 on the cathode side and tried it, it would make about 30 volts power, and trips both 5 amp breakers on l1 and l3 that go to pin 8 and 7 on the sx460.

http://www.smc-diodes.com/products/data/15SQ045%20N1007%20REV.B.pdf will that work just asking because I have 2 of them, and a bunch of 1n4007

The residual magnetism seems to only create about 1.2 volts, so I excited the field with the generator running but with the sx460 disconnected to save from frying it, the generator output is 251 volts, with the resistor wired in exciting with 24 volts, exciting with 12v the output was 248 volts...

Still nothing, I flashed the field as per the instructions. by disconnecting the field from the sx460 flashed the field with the generator shutdown, hooked it back up started it not generating power. I have a 56 ohm resistor wired in now on the flash circuit, debating now to wire the relay back...

I wonder if energizing the exciter field backwards and when the relay would switch things back to the AVR could cook the AVR too. the only reason I redid the engine control and the exciter controls in the first place was due to the backfeed issue on the A1 relay and triping the 7.5 amp breaker.

No I have the cheaper Chinese version. Kinda glad I did now, was sorta hoping to get it running with the Chinese version and if I had issues with them failing I'd buy the more expensive Flight Systems unit. Hmm so does XX = F2 and X = F1? If that is true That is how I wired it up trying to...

There is how I currently have it wired, i'm thinking the reason it blew the sx460 was due to the one breaker not tripping till it hit 40 amps and it should have tripped at 5, but that brings the question why it was tripping the 5 amp breakers. I apologize for my chicken scratch I hope it it...

That's my plan I am going to try the 56 ohm resistor will a 5 watt resistor be enough? Would feeding direct 12v power to the exciter field cause the field to overload the 5 amp breakers from L1 & L3 going to pin 7 and pin 8 on the AVR? Also is it right that I have the avr picking up signal...

Leaving the fields directly connected to the sx460 and supplying a flash current creates an overload on the flash circuit. The the sx460 don't seem to get enough power from the resdidual magnetism usually only around 1.5- 3 volts. Something else I noticed was that the one 5 amp breaker that...

No the Flash is now 12v reduced with a 24v to 12v via a 10 amp converter that gets it's power directly from the 7.5 amp breaker, connected to a SPDT relay controlled by a push button to isolate the field from the SX460 when flashing, when connected directly to the SX460 field wiring via the push...

yeah I tried wiring the field both ways, f1 is x and f2 is xx right? that how I initially had it wired up them figured perhaps I was wrong and tried the other way. If I disconnect the field from the sx460 and give the field 12 volts the genset makes 140 volts on each leg.

well I just destroyed the sx460... or perhaps it was faulty to begin with not sure but it just toasted one of the transistors mounted to the heat sync. I powered up the flash circuit it started to make power then POP! just as I was releasing the flash button, when the voltage went over 100...

well the feed back problem is clearly the sx460 It don't seem to like having a flash circuit wired in with it almost acts like a dead short in the field wiring when you try to flash the field. I'm going to sry using a relay that will isolate the sx460 from the field wiring while flashing, and...