I posted the procedure of getting my Orion JR2 connected to the SolArk but I thought I would also post it here for continuity.
The first step on the SolArk is making up a CAN communication cable. Any RJ 45 cable will do. Pin 4 is CAN Hi and Pin 5 is CAN Lo. This cable is connected to the CAN cable coming out of the Orion Jr2. ( Red is CAN Hi and Black is CAN Lo) No resister is needed. In the case of the SolArk 12k this is plugged into the RJ45 port labeled Battery CAN Bus. Details for other models can be found in the SolArk document titled "Battery Integration Guide". The battery communication needs to be set up on the SolArk by checking the Box "BMS Lithium Battery under Battery Setup. Make sure the address is 00. Once you are done you should see a new selection on the SolArk main screen. It won't be populated yet until the next step.
The next step is setting up CAN communications on the Orion. This is done on the Battery Profile page. Click on the CANBUS Settings tab and at the bottom of the page is a window in which you need to scroll down to "AC Inverter". Clip to drop down choices and click on Victron Inverter. After doing this be sure to upload the profile to the BMS from the programming interface,
Once you are done you should be able to see the BMS values in the new tab you added above in the SolArk. I just set mine up and have not reviewed all the values on the attached.
For example, I am not sure why Charge current limit: 0A and Nominal_Cap: OAh. Battery charge voltage: 56.0 V , comes from a BMS setting and I will be watching how this relates to lower settings I have set on the SolArk.
EDIT: I checked the BMS and one of my cells had tripped the BMS so the BMS must have lowered the Charge limit. Now, later the battery is discharging, that cell is back under the limit and the Charge current limit is back to normal_
I see no correlation to the Ahr Capacity set in the Orion (800 Ah) and the above Nomical_Cap:0Ah. The Alarm digits do not correlate to anything I see on the Orion.
Last edited: Yesterday at 3:59 PM
SolArk 12k hybrid inverter with a battery pack of 42 kWh of LF 280 cells monitored by an Orion BMS. 7kW Mission Solar panels with Enphase IQ7+ microinverters
AC coupled to the Skybox. An additional 2kW Sunpower panels DC coupled to the SolArk inverter.
Currently own two EVs and been driving EVs since 2012.