Hi
I have a installation with the following alarm: GX Error #48 DVCC with incompatible firmware: Warning.
The installation consist of a multiplus, a cerbo, a touch display, 4x pylontech us 3000c batteries and a oldiesh 70/150 amp blue solar mppt.
The MPPT runs on ve-can port @ 250kbit/s, the pylontech is running on bms-can port 2 @ 500kbit/s
What does the error mean and how do I get rid of it.
The system seems to work fine
Is the Cerbo set to auto-update or did you manually updated it?
List the firmware versions of your devices.
From here:
Battery compatilibity
For CAN-bus connected batteries, check the relevant page on the Battery Compatibility manual to see if enabling DVCC has been tested with your battery-type and is supported. If DVCC is not mentioned in notes relating to your battery, do not enable DVCC.
For Gel, AGM, OPzS and other lead batteries, DVCC can be used without any problem. The same is true for Victron Energy lithium batteries with the VE.Bus BMS, the Lynx Ion + Shunt BMS or the Lynx Ion BMS. DVCC is the preferred operating mode for Redflow ZBM2/ZCell batteries using the Redflow CANBus BMS.
Firmware versions
Do not use DVCC in cases where these requirements are not met. In all cases we recommend to install the latest available firmware during commissioning. Once running well, there is no need to pro-actively update firmware without reason. In case of difficulty, the first action is to update firmware.
Required minimum firmware versions:
Multi/Quattro: 422
MultiGrid: 424
Cerbo GX: v2.12
VE.Direct MPPTs: v1.46
VE.Can MPPTs with VE.Direct: v1.04
Older style VE.Can MPPT Solar Chargers (with the screen) cannot be used: they do not support the new control mechanisms.
Lynx Ion + Shunt: v2.04
Lynx BMS: v1.09
From Venus firmware v2.40, there will be a warning message 'Error #48 - DVCC with incompatible firmware' when one of the devices has an incompatible firmware while using DVCC.
In case of an ESS System, the ESS Assistant needs to be version 164 or later (Released in November 2017).
This issue was fixed for me in v2.65, if you have not upgraded might give that a shot.
