
Sunsynk US3000/US2000B setup
2.3 System Mode
On the “Battery” page under settings, go to “Batt type” and ensure that “Activate” is ticked and that
“Lithium” is selected as in Figure 4. For Pylontech CAN communication ensure “CAN” is selected and the
Protocol is set to 0. The “Batt capacity”, “Charge Amps” and “Discharge Amps” will be dependent on the
type of battery you have as well as the bank size. Finally, ensure that “BMS_Err_Stop” is ticked
On the “Battery” page under settings these settings will
be the same as that of the other Pylontech batteries i.e.,
US3000C/US2000C and UP5000.
The “System Mode” page is where the installer can program charge and discharge times. These settings are
dependent on the application and purpose the system will serve. For further details please visit the manual.
Figure 4 is an illustration of what each box does and how it can be utilized.
1. Tick this box to do not export power back to the grid (the CT coil will detect power owing back to the
grid and will reduce the power of the inverter only to supply the local load).
2. Tick this box if you wish to export your solar power back to the grid.
3. Tick this box if you only want to supply power to the load side of the inverter.
4. Zero export power is the amount of power owing from the grid to the inverter. Set this value to 20
– 100W to force the inverter to always take this amount of power from the grid to minimize nuisance
tripping “Reverse Power Detection” of sensitive prepaid electricity meters.
5. This controls the maximum overall power, both to the load and grid ports combined. It is set to low if an
over current fault occurs.
6. Tick this box if you wish that the solar panels prioritize power to the load. But if you untick the solar will
prioritize the power to charge the batteries.
Figure 7: Pinout
congurations for old
Pylontech batteries
Before commencing with the installation please
ensure that the BMS cable is as per denition in Figure
7. After the communication cable is connected, please
ensure that the Li-BMS page under settings is as in
Figure 2. Please note that values may vary depending
on the battery used.
Concerning the detailed Figure 4: