I haven’t been able to establish a closed communication with the Soluna EOS 5k batteries. I’m using a Cerbo GX. My connections are BMS on the battery’s CAN 2 port and on the Cerbo GX’s VE.CAN 2 port.
The dip switches, the 2 is on and the two 1s are off.
Have you seen:-
Victron & Soluna
1. Product & System compatibility
1.1 A GX device is required, eg Cerbo GX, etc
It is essential to use the BMS-Can (500 kbit/s) connection type of a GX device with these batteries for communication of charge and discharge limits, error codes and state of charge.
It is possible to use either the BMS-Can or VE.Can ports with this battery. Depending which one you use will require additional configuration on the batteries side, please see the documentation linked below for instructions.
The minimum supported GX firmware version is v3.60. It is recommended to use the latest firmware version on new installations and when trouble shooting issues.
The minimum supported Soluna firmware version is JC3.30
Connecting a Soluna battery to the GX device will automatically enable DVCC and SVS, and disable SCS and STS.
The Soluna battery automatically controls the target voltage on the Victron system (CVL).
If the battery and inverter lose communication for 10 minutes, the battery will enter sleep mode. When the receives a signal from the GX device again the battery will automatically re-awaken.
1.2 CAN-Bus wiring between the battery and GX Device
The Can2 port of the battery communicates with the GX. Because the Pin2 port and Pin6 port on the battery are not defined, either the A-type and B-type communication cables provided by Victron can be used.
VE.Can to CAN-bus BMS type A Cable part number ASS030710018.
Plug the side which is labeled Battery BMS into the Battery BMS. Plug the side labeled Victron VE.Can into the GX device.
Then plug a VE.Can terminator in the other VE.Can socket on the GX device. Two VE.Can terminators are included with the package of the GX device as an accessory. The battery has a built-in CAN terminator, so there is no need to connect a VE.Can terminator on the battery side.
More information about the cable can be found in its manual.
Without properly connecting this cable and terminator, the battery will not reliably show up on the display of the GX device.
It is important to ensure this connection and display of the battery on the GX device display before attempting firmware updates or settings changes on other devices if they depend on the power supply from the battery. DO NOT attempt to operate the battery cells normally without connection to the BMS.