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Axpert 3kw Inverter Help Needed


Ricky
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Hi. I am very novice with the inverter software. Use Inverter for camping. Need it to run from AC, generator, solar pannels and battery bank - have 4 x 12v batteries. 2 x in serie to give 24v and then in 24v paralel. My problem is that Inverter work properly from 6900kpa generator but does not charge the battery bank - even with zero load. I installed U1 15.60 firware. 

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When camping, I would like to hook-up solar pannels that provide enough watts for the fridge. If I need more watts now and then, it is Ok if Inverter draws extra watts from battery bank. Idea is that Solar pannels provide max amps and limited watts. I intend using generator to top up the batery bank so they last through the night.

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Hi Ricky

The 72,70 firmware is for the 4kW 48V version and will definitely not work on a 3kW. A earlier version of the 4kW firmware did have trouble with  generator power but it since has been resolved.

Program 3 should be set to APL rather than UPS.

I was with a client last week and she was having trouble with a generator charging batteries. What we noticed is that the gennie is on the older side and tends to "hunt" (revs go up and down) if it is not under load. So she ensures that there is enough load and then the gennie behaves itself and voila charges the batteries. 

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Hi Chris. The Genie runs perpectly through the inverter, which previously it did not. But it does not charge the batteries. The 51.60 firmware made huge difference. I have an idea the older firmware fits my small scale camping setup much better - simplicity. I cannot get the secondary charger firmware loaded - not picking up the com 1 port. Got cable today which hopefully allow me to install the charger firmware.

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