Hi first time post on forum ,I have problem with a new Axpert VM lll 3000 24 it will not charge of some genarators , It see the AC but will not go to bypass or charge ,iv read about this issue on the forums  about this with  older models ,as it still not been resoved ? is it the firmware !

Genarators tested with

 

Diesel SDMO 11kva AVR works ok

Diesel lombardini 8kva capasitor works ok

petrol Hyumdia 8kva AVA not charging ( Brand New 3 hr on clock )

petrol Honda 4kva capsaitor not charging

petrol Genergy 6.5kva AVR not charging ( Brand new )

 

All the above work fine when put on my outback VFX 3024 E so I conclude that it must be the Axpert inverter

 

keith

Edited November 3, 20196 yr by KIb

It's well known that the Axperts are picky about generator output quality. It seems that unless you have an inverter-based generator, then it's just luck whether it will work or not.

The Axperts insist on phase synchronising the inverter output to the AC input; perhaps the Outback model you mention doesn't try to do that, and hence doesn't care about the quality.

On 2019/11/04 at 5:43 AM, Coulomb said:

It's well known that the Axperts are picky about generator output quality. It seems that unless you have an inverter-based generator, then it's just luck whether it will work or not.

The Axperts insist on phase synchronising the inverter output to the AC input; perhaps the Outback model you mention doesn't try to do that, and hence doesn't care about the quality.

Is that true even for the King?  It is understandable for the others (fast transfer times) but the King runs off inverted DC all the time as I understand (zero transfer time)

Hi guys  thank  you for your input   , update  now working  OK  ,   some  Axpert  very  temperamental   , not liking them , ?

 

 

7 hours ago, Calvin said:

[ Re: Axperts insisting on synchronising AC-out to AC-in ] Is that true even for the King?

I believe so. Even the Kings will have to go to a bypass mode (AC-in connected to AC-out) if the load exceeds rated output. That could happen at any moment.

Update,   it is   playing   up again so I did some  testing  , if I turn inverter off then ,  start generator,   Any generator  even an old clapped out  one  with v and Hz  up and down,   it is going   to bypass and charge  No problem  ??   

Yup, as @Coulomb says: Axperts should be a bit better at reading from the Gen output, but we also have to understand that our Gensets in SA are not the best quality, so many don't put out a decent sinusoidal wave, they use a "chopped" sine wave output to "pretend" to be a good source. The Axperts tend to want a decent sinusoidal wave (or as close to) and cheap generators in this country don't do that.

PS: I just use a change over switch at my DB. I Installed it what I was using Axperts, but I still sometimes use it even with the Imeon.

Hi thank you for your input  ,   I take it you mean   DB as   Dis board  how did this make the invert charge  ?