Lynx Smart BMS 8.4. Monitoring and control The individual BMSes are monitored and controlled like a single BMS via the GX device or VictronConnect, while the virtual BMS can only be monitored from the GX device. If the GX device has an internet connection, the parameters of the individual BMSes and the virtual BMS are also sent to the VRM portal and can be monitored there. The table presents the parameters of the individual BMSes and outlines the method for calculating and displaying the combined values for the virtual BMS. BMS disconnect notification When one of the connected BMSes disconnects, whether intentionally (e.g.
during maintenance) or due to a fault, a warning notification is shown on the GX device. This alerts the operator to the change in system configuration and allows timely action to be taken. Page 29 Paralleling Lynx BMSes The virtual BMS is controlled automatically, while the individual BMSes can be controlled manually (ON, Standby, OFF). Also shown are the number of connected BMSes out of the total (e.g. 2/2). When a BMS disconnects, the total is retained (e.g. 1/2). It is also possible to assign an individual name via the Device menu. The battery monitor on VRM always displays the combined values on the VRM dashboard. All BMS parameters are available via widgets in the VRM Advanced menu.
When a BMS powers up, it checks the voltage difference between the online battery and the newly added battery. It remains in 'Pending' state until the voltage difference is small enough to close the contactor safely. This status is displayed in the device list for the respective BMS. When a BMS is in this state, a "system voltage" field also appears up on its device page, displaying the voltage of the parallel BMS.
Parameter Combined result in virtual BMS Charge Voltage Limit (CVL) Lowest CVL of BMSes depending on the device state (bulk, absorption and float) Charge Current Limit (CCL) Sum of all CCL Discharge Current Limit (DCL) Sum of all DCL State of charge (SoC) Average of SOC weighted by capacity share Capacity (Ah) Sum Time to go (TTG) Average of BMSes Battery voltage Average Battery current Sum Battery power Sum Battery temperature Maximum