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@Chris Louw Thank you so much. Changed the battery to old AGM's to test and everything works 100%. Will look again at configuring LifeP04 (S/w was previously updated to KettleKomp V74.40E in 2022) Any further updates available that you are aware of? What a win - now I can use it as a 48v battery charger from PV and AC

My 2019 Axpert 5KW inverter gave up the ghost a while ago with error 09 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. Although I have replaced this unit with a SunSynk 8KW unit, I would like to have the Axpert repaired if cost effective. Any recommendations for someone in Cape Town or surrounds?

Going down this route and need some installation advice: Currently have a 150l electric geyser with a 2Kw element powered off my solar system (8kw SunSynk supplies the whole house). GeyserWise controls times when the water is heated (set at 65 deg due to small geyser size) We have added a 2 bedroom cottage as an AirBnB but still only have the 150l geyser. Have purchased a 24l/min Ariston fan force geyser, and want to connect it as follow: Main cold water supply -> 150l electrical geyser -> gas geyser -> hot water supply. I see some companies (Dewhot) uses a Solar to Gas Valve to direct the hot water flow (This valve is designed to be used in conjunction with solar water heating systems. This valve is used to divert water to the gas geyser, in order to further heat the water if the water entering the valve is not at the desired showering temperature) but don't understand if it will serve any real value such as saving on gas (i.e. will it save me R1200 on gas over 12 months (R100/pm))? All input and advice is appreciated

Installing this unit with Hubble AM4. poke to Hubble tech support and they steered me to the Hubble - Axpert inverter settings. Now going to see if Hubble will talk to Synapse V3.0 via comms cable. If anyone has been successful please let me know Hubble Battery Voltage Settings Axpert.docx

Hi Steve Unfortunately these batteries have not been upgraded to an intelligent BMS. Still waiting for an opportunity to go to Jhb to get the upgrade/conversion done. Hence looking for an interim solution

We have 2 x LBSA L48B16S120A2 120Ah 48v 6kwh batteries connected in Parallel which were previously connected to our Axpert 5k and controlled via a Victron 712. Last week the Axpert went to inverter heaven/hell and has subsequently been replaced by a Sunsynk 8Kw unit. Currently the batteries are managed by the Sunsynk using AGM(v) to set parameters but I would ideally like to use the 712BMS. Has anyone got a wiring diagram / pinouts and how do I connect it to the Sunsynk using RS485

When you put a plug tester on, it shows live and neutral but no earth (btw RCD does not trip) When switched to grid power plug tester shows earth as well

Hi We have installed a Sunsynk 8Kw Hybrid with 5Kw panels and 3 x Pylontech UP5000 (to be upgraded to 3 as soon as available) All load, except for Geysers and Aircons are on essentials, with a CT coil facing correctly from the grid. There is also legal feedback to the grid. Although the feed to the inverter is connected to grid-earth, when the change over switch is set to inverter all essential loads are without earth. When set to grid, earth is present. Question: Do I need to install an earth-spike to the inverter, a relay or what is the solution.

So I am using the following cables: 16mm cable from battery to Shunt, and shunt to inverter 1 x red power cables from each battery to Shunt, first one connected to top battery and 2nd one not connected. So in my world all should be ok. BTW, the BMS also keep on coming up with midpoint warnings, so I have disabled it. The concern is not so much the Inverter, but rather the difference between the BMS and the battery monitor on each the battery box. Btw, it has a "dumb" BMS/equalizer inside the box (LBSA BMS 120A 15S 48V LifePO4 Lithium Ion Phosphate) as installed by battery supplier Electrical Parameters: Room temperature 25℃, humidity 55% N0 DESCRIPTION SPECIFICATION UNIT REMARKS 1 Discharge Continue discharge current 120 A 2 Charge Charge Voltage 54.75 V Charge current 60 A 3 Over Charge Protection Over charge detect voltage 3.75+-0.05 V Over charge protection delay 1 S Over charge release voltage 3.55±0.05 V 4 Balance Balance detect Voltage 3.50 V Balance release voltage 3.50 V Balance current 30±5 mA 5 Over discharge protection Over discharge detect 2.2±0.1 V Over discharge detect delay 600 mS Over discharge release voltage 2.5±0.1 V 6 Over Charge current protection Over discharge detect 200±12 A Can set as required Over Charge current detect delay 600 mS Can set as required Over Charge current protection release condition Off load Off load Off load 7 Over discharge current protection Over discharge current detect voltage 400±50 A Can set asrequired Over discharge current detect delay 600 mS Can set asrequired Over discharge current protection release condition Off load Off load Off load 8 Short Circuit protection Short Circuit protection condition Short circuit of external load Short circuit of external load Short circuit of external load Short circuit detect delay 250 uS Short circuit protection release Off load Off load Off load 9 Temp Protect Temperature protection degrees / ℃ No 10 Weak Current Switch No 11 Inner Resistance Main Circuit Conduct Inner resistance <20 mΩ 12 Self Consumption Working current 100 uA Sleeping current( over-discharge) 50 uA 13 Working Temp Temp range -20~70 ℃ Storing Temp Temp range -40~80 ℃

I finally have all my comms and management working on my installation. Recap: Inverter - RCT Axpert 5k Batteries - 2 x LiFeP04 (2nd life) 120AH 6Kwh BMS - Victron 712 Management - ICC on Raspberry Pi4 Panels - 6 strings (2 x Canadian Solar 410W panels per string) Issue: ICC battery SOC and Voltage differ from that displayed on Battery I did manually sync the BMS with the batteries when SOC of batteries was 100% What should I try next as this is a substantial difference in SOC

Agree, although you can buy the Raspberry Pi from the PiShop for a lot cheaper. Manie sent me his banking details and the rest was easy. Be aware that if you go my route and download the ICC software from Manie, it will not connect to your inverter until you have entered the key that he will supply once you have installed the software on the Pi. So, order your Raspberry Pi, download (and pay for) your ICC software, install it on the Pi (you do need a 16GB microSD card - don't forget the adapter for your PC as well as Win32Disk Imager (download it from web) mail Manie the ICC-PI id and he will send you the unlock key.

@Gerrie what settings do you use for reverting to ESKOM, and at what state of charge etc I have just installed ICC on Raspberry Pi to interface with my Axpert 5K and are awaiting a cable for interfacing my Victron BMS712 with the ICC tks

@Jaco de Jongh in Darling WC

I need to source a VE.Direct to USB cable to connect my Raspberry Pi4 to a Victron 712. Can anyone please point me in the right direction

How do you start an Axpert 5K (PF1, V74.40) if the battery voltage is low, but it is connected to the Utility Any settings that should be changed?