My problem is random error #67 and stop in charging. All software versions in both REC and Victroneasysolar II are latest. Seems to be a canbus problem between REC bms and the MPPT ( set at 500). Can it be a ground potential problem ? Should the battery 0v be earthed ? It is at the time only connected tot the easysolars main terminals.
The Can.bus of the EasySolar-II is only for BMS-Can with 500kbit/s.
The MPPT needs VE.Can with 250kbit/s. This VE.Can connection is not supported by the EasySolar and you will get drop outs.
Connect the MPPT with VE.Direct, or VE.Direct to USB adapters instead.
https://docs.victronenergy.com/easysolar-ii-gx.html#bms-can-connections
@Matthias Lange thank your for your reply. I wrongly described the bus between easysolar II and the MPPT it is of course as orginal a Ve.can with 250kbit/s. My problem is the #67 error and 1-2 sec fallout. My setup consist of a easysolar II and a REC BMS with lithium cells. 1.) How should this setup be earthed ? thinking first of the battery and the REC BMS controller ? and secondly of the solar cell's towards the MPPT in the easysolar II ? Appreciate your feedback
