Thinus Posted July 19, 2018 Share Posted July 19, 2018 I am new to the blog but have seen many discussions on Axpert settings. I need advice on my system please. 2 x 4Kw Axpert (One is RCT and the other Mecer) Connected parallel. 18 x 260 w panels connected to both inverters. +_ 4.5kw 8 x Narada 12NDT200 AGM batteries. 200A each. Float charge - 54V . Bulk charge 57.6V. Settings at this stage: 01 Sbu 02 50A 03 UPS 04 Sds 05 USE 06 LFE 07 LFd 09 50Hz 11 2A - don't want utility to charge too much. 12 45V 13 50V 16 CSO 23 byE 26 56.4V 27 54.0V 28 PAL 29 45V 30 All 31 Sbe We are only 2 in the house and the Stove, Washing Machine, Tumble dryer are not connected to inverters. only the geyser which runs on a timer and only comes on mid morning and later in afternoon. (Trying to max the solar time). Recently my second RCT packed up and I replaced it with the Mecer. Also upgraded both to firmware 72 40 U1. Everything runs smooth, and then I get a code 80 error. (CAN). I shut everything down, start up and then it lasts for a day or so. Can anyone help on setting suggestions and also on the error? Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted July 19, 2018 Share Posted July 19, 2018 Hi Thinus The changes I would make is Setting 12 47V or 48V below 48V is a SOC of below 50% your batteries will not last long under those circumstances. Again setting 13 is too low I would set this to 54 or 55V thus you can be sure that you batteries are receiving a decent amount of charge before going back to solar/battery. Error 80 is a data/communication error check your cabling between the two inverters. ___ 1 Quote Link to comment Share on other sites More sharing options...
Thinus Posted July 20, 2018 Author Share Posted July 20, 2018 Thanks for the info. Is there any recommended monitoring system that I can easily install. Would like to see at a glance the PV input, Load, battery capacity etc. Maybe something with its own screen. I know the Victron stuff don't match. Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted July 20, 2018 Share Posted July 20, 2018 2 minutes ago, Thinus said: Thanks for the info. Is there any recommended monitoring system that I can easily install. Most folk use ICC http://iccsoftware.co.za/ Quote Link to comment Share on other sites More sharing options...
___ Posted July 20, 2018 Share Posted July 20, 2018 1 hour ago, Thinus said: I know the Victron stuff don't match. Yup. It shows the values reported by the various devices (ignoring calibration and efficiencies), updated about once a second at most (sometimes even less, CAN bus batteries often send data only every 2 or 3 seconds) so the values on the screen never adds up exactly :-) Quote Link to comment Share on other sites More sharing options...
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