jussclay Posted September 21, 2017 Posted September 21, 2017 Hallo everyone could anyone have a direct cause of the error code 09 on an Axpert inverter. Quote
Coulomb Posted September 21, 2017 Posted September 21, 2017 (edited) Unfortunately, it usually means shorted IGBTs, either in the 230V inverter, or the high-side of the DC-DC converter. It"s a Bus Soft Start error. There is a small power supply that charges the DC bus capacitors to about 8x the battery voltage (some 400 V), which is switched on very soon after powering on. If there are no paralleled machines, it has about 15 seconds to reach that voltage, or a bus soft start is asserted. A friend and I had one recently (after a repair), and the first time it took about a minute before it came up. Probably the IGBTs were OK at that point. Next startup, the error came up quickly, possibly in just over 15 seconds. There was a dead short across the DC bus. It's possible to check this with a multimeter without removing the main board, but it's tricky on some models. Measure on a voltage range first in case there isn't a short. The 2x 470 uF capacitors can hold a wallop, so care is advised. If no voltage, it's safe to measure on ohms. A working inverter should measure in the megohms, slowly changing. Edited September 21, 2017 by Coulomb 230 V inverter victronics 1 Quote
jussclay Posted September 22, 2017 Author Posted September 22, 2017 Coulomb thank you a lot how possibly can i get the schematic diagram or better still a comprehensive service maual Quote
Chris Hobson Posted September 22, 2017 Posted September 22, 2017 10 hours ago, jussclay said: Coulomb thank you a lot how possibly can i get the schematic diagram or better still a comprehensive service maual Have a look at the AEVA forum (lounge if I can remember). There is a PIP thread which is invaluable with schematics and there's other info. Unfortunately the thread is 70 odd pages long but there is a index on the first page. Quote
Coulomb Posted September 23, 2017 Posted September 23, 2017 On 22/09/2017 at 4:29 PM, jussclay said: how possibly can i get the schematic diagram or better still a comprehensive service maual There are some reasonable service manuals here. Not many schematics, but we've traced the more important parts on the AEVA site, as Chris noted. Quote
jussclay Posted September 25, 2017 Author Posted September 25, 2017 thank you so much for the help but unfortunately i have to reach 15 posts for me to see them . so i will have to post more. Quote
SilverNodashi Posted October 2, 2017 Posted October 2, 2017 On 9/25/2017 at 10:47 AM, jussclay said: thank you so much for the help but unfortunately i have to reach 15 posts for me to see them . so i will have to post more. Only 9 posts to go Quote
Energy-Jason Posted October 2, 2017 Posted October 2, 2017 Heya Guys. Hope well . I dropped this to 5. Do have a look see. Sincerely Jason Chris Hobson 1 Quote
SilverNodashi Posted October 4, 2017 Posted October 4, 2017 On 10/2/2017 at 9:04 AM, Energy said: Heya Guys. Hope well . I dropped this to 5. Do have a look see. Sincerely Jason Thanx, I am sure that will help many newbies Chris Hobson 1 Quote
Dejan Posted October 9, 2017 Posted October 9, 2017 On 21.09.2017. at 4:22 PM, jussclay said: Hallo everyone could anyone have a direct cause of the error code 09 on an Axpert inverter. I have the same fault. I need service manuals... only 1 post... Quote
Dejan Posted October 9, 2017 Posted October 9, 2017 On 21.09.2017. at 4:22 PM, jussclay said: Hallo everyone could anyone have a direct cause of the error code 09 on an Axpert inverter. Why we need a post for download? Quote
PaulF007 Posted October 10, 2017 Posted October 10, 2017 For a couple a reasons , one being that you become an active member or at least for 5 posts and second had to do with posting files on the forum or something like that. 5 Post is a small price to pay for all the good info that is available here . Energy-Jason and Dejan 2 Quote
saif1985 Posted December 6, 2017 Posted December 6, 2017 error 09 mean mosfet and igbt are burn , some time mosfet and igbt not burn but fault still is 09 this time soft starter ic 3845 is faulty Chris Hobson 1 Quote
Coulomb Posted December 6, 2017 Posted December 6, 2017 (edited) 22 hours ago, saif1985 said: fault still is 09 this time soft starter ic 3845 is faulty That would be U16; there is more than one UC3845 chip in an Axpert. Soft start partial schematic trace. Fault code 09 means that when the Axpert attempted to pre-charge the 400 V bus, it failed to reach its target voltage in 15 seconds. The target voltage is usually battery voltage × 8 but always 336 V to 480 V and it can depend on grid voltage. That could be because failed capacitors or IGBTs are shorting the bus (either the inverter IGBTs or the high-side full-bridge of the DC-DC converter), or something failed in the soft-start circuit itself. Edited December 7, 2017 by Coulomb Clarify bus voltage target Chris Hobson 1 Quote
___ Posted February 10, 2018 Posted February 10, 2018 Your patience is admirable! Energy-Jason 1 Quote
mk12 Posted February 21, 2018 Posted February 21, 2018 I have the same fault. I need service manuals Code 09 What to do Quote
Kobus van der Watt Posted February 22, 2018 Posted February 22, 2018 Hi Guys I see you guys talking about error 09, what cause error 08 to come up now and then, not always there. Thanx Quote
mk12 Posted February 22, 2018 Posted February 22, 2018 Restart the inverter, will the fault repeat? Quote
Coulomb Posted February 23, 2018 Posted February 23, 2018 (edited) On 22/02/2018 at 3:12 PM, Kobus van der Watt said: what cause error 08 to come up now and then... As mk12 says, error 08 is bus voltage too high. This is the internal ~400 VDC bus that drives the inverter IGBTs. The electrolytic capacitors on this bus are rated at 500 VDC. They can take a voltage overload for some minutes, but it will not be good for them to do this long term. The firmware measures the bus voltage continuously. You get error 08 if the bus voltage exceeds 500 VDC without exception for 10 seconds, and in addition, if the bus voltage is at least 10 VDC higher than the measurement at 1 second of over-voltage. The instant the bus voltage falls to 500.0 V or below the counter is reset to zero and the whole thing starts again. So it's pretty tolerant. The bus voltage is generally close to 8.0 times the battery voltage, because the high frequency transformer has an 8:1 turns ratio. So a very high battery voltage could possibly cause this. [ Edit: or possibly a poor (high resistance) battery connection, perhaps a bad crimp etc. ] However, I think it's more likely to happen during utility (mains, AC input) charging. At this time, they do something I don't yet understand to the inverter, such that it pulls power from the AC input to the DC bus. I think it's a bit like regeneration in an AC electric vehicle, except that there is a "DC transformer" with an 8:1 turns ratio between the inverter "input" (now really an output) and the battery. There is a buck stage to buck this bus voltage to whatever is needed to push power back into the battery at the desired current. I think that sometimes they get the dynamics wrong and the inverter (running in reverse, so now a battery charger) puts too much charge into the bus capacitors, and you get the occasional error 08. Perhaps this can happen if the utility or generator voltage increases suddenly, perhaps due to a big load coming off (it might not be your house, but someone down the street or the next farm or whatever). Edited February 23, 2018 by Coulomb Sentence re bad battery connection Chris Hobson 1 Quote
Compupower Posted August 11, 2018 Posted August 11, 2018 On 10/2/2017 at 8:04 AM, Energy said: Heya Guys. Hope well . I dropped this to 5. Do have a look see. Sincerely Jason Im working on axpert inverter 5kva Is it possible for U16 to be bad even if the resistor R245 is good. I've checked everything on the board yet im still having error 09 Quote
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