Note: The “Limit managed battery charge voltage” feature should be left OFF, unless you are experiencing “High Voltage” or “Internal Error” alarms. Without this connection, the battery may turn off unexpectedly.įor more information about the behaviour of DVCC, please see the GX device manual. 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. Without properly connecting this cable, the battery will not show up on the display of the GX device. More information about the cable can be found in its manual. Two VE.Can terminators are included with the package of the GX device as an accessory, only one is used. Then, plug a VE.Can terminator in the other VE.Can socket on the GX device. Plug the side labeled Victron VE.Can into the GX device. If your GX device ONLY has VE.Can ports, you will need to this for the battery (and then it cannot be used for other VE.Can devices). If your GX device has a BMS-Can port, this should be used. Some GX devices (such as the Cerbo GX), have multiple CAN ports. Plug the communication cable with the side which is labeled Battery BMS into the Pylontech CAN port of the master battery. You must use the VE.Can to CAN-bus BMS type B Cable, part number ASS030720018 for connection with US2000/US3000/UP2500 and VE.Can to CAN-bus BMS type A Cable, part number ASS030710018 for connection with US2000C/US3000C/UP5000/Force-L, you cannot use the cable supplied by Pylontech. The battery with the empty link port 0 is the master battery. The batteries will automatically detect and link to each other, no adjustment of dip switches on the battery module are necessary. See your Pylontech dealer, and Pylontech documentation for more details. Other models can connect up to 8 battery modules (see Pylontech data sheets), in those models when using more than 8 parallel units, some limitations, additional configuration or equipment (e.g. The communications for UP2500 can be paralleled up to 20 modules per string (and cannot use the LV-HUB). This is shown in more detail in the example wiring diagram and Pylontech manual. You can connect multiple battery modules together to form a single large battery by connecting the RJ-45 cable supplied by Pylontech using the link ports on the battery. Each battery module is approximately 50Ah at 48V, can provide 25A continuous charge and discharge and 100A peak for 1 minute. Using the above formula, an example of minimum system sizing based on the US2000 battery module is below. These are suggestions for reliable operation for single phase off grid and are not specified by Pylontech. Some suggested battery sizings for common Victron inverter/chargers are listed below. It is much more desirable to have the inverter/charger overload than the battery, as the inverter will automatically recover, whereas the battery may require intervention once in a fault state. There is also the subsequent potential current demands of the loads connected to the inverter. You must have the minimum number of battery modules to supply the inverters startup inrush surge currents that charge the capacitors when the inverter is first connected, this occurs prior to any loads being connected. Using very large solar arrays with battery banks that are too small can exceed the limits of the batteries ability to charge and possibly lead to the BMS triggering over-current alarms. Once DVCC is enabled on the GX device, the charge and discharge rates are managed by the Pylontech battery. Old model VE.Can MPPTs (pre 2019) are not supported.Ģ. So if you use a new VE.Can MPPT, it must also be with a GX device that has more than one CANbus interface, e.g. CCGX) only have a single CANBus interface, and that is required for the battery communications. New Model (2019 and later) VE.Can MPPTs are also supported from firmware version 1.06 and above. #Gx works 2 force on codeAfter a time-out, the MPPT will stop charging and flash an error code on its LEDs. To test operation, try disconnecting the GX device from the MPPT. The MPPT requires connection to the GX device to regulate charge currents as the batteries require (due to temperature, etc) Make sure the GX device runs v2.15 or later, and the MPPTs to 1.37 or the latest available version. Therefor it is recommended to use Victron 48V compatible MPPTs models with VE.Direct port for charging. For proper operation, the Pylontech battery needs to be able to control the charge current.
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