July 19, 20188 yr 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?
July 19, 20188 yr 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.
July 20, 20188 yr Author 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.
July 20, 20188 yr 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/
July 20, 20188 yr 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 :-)
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