How to enter the settings mode
1. Press and hold the fourth key for about 1-2 seconds
When the left icon flashes, you can use the up and down keys to switch pages
If you press the fourth key again, the right number will flash and you can adjust it digit by digit. In this case, you cannot switch pages up and down, but only adjust this item
Opo digital code compliance
01 represents the first page
230 output voltage, which can be adjusted
Several typical representative items:
Opp: Output priority. On page 03,
Gfb: Default grid priority. The default priority for power supply to the load is grid (priority: grid - PV - battery). This is suitable for areas where the grid is relatively stable, with the battery serving as a backup power source for emergencies.
Pv: PV priority. Priority - PV - grid - battery. This is suitable for countries where the grid is unstable. During periods when there is electricity, it can quickly recharge the battery, and when the grid is out of power, the battery power can be used.
Pbg: Battery priority. PV - battery - grid. This mode is applied in countries with a well-developed and stable grid, mainly relying on PV to save energy.
05 This item, selection of charging priority
Png default mode: both photovoltaic and grid power can charge the battery. It's fine to keep it as default.
Opp: only photovoltaic. If this mode is set, grid power cannot charge the battery; only photovoltaic can be used for charging.
06 Set the mains charging current size. For this 5.5kw machine, the default is 30A and it can be adjusted from 30A to 80A. The selection of charging current should be based on the battery capacity. It is best to set it at 0.5C. If the battery is 100Ah, the charging current should be set at 50A.
07: Total charging current size (the combined charging current from mains and photovoltaic, default is 60A). This is set based on the battery capacity and the maximum charging current the BMS can handle. It is recommended to charge at 0.5C for a more standardized and reasonable usage state, which helps protect the battery's lifespan.
26: Factory Reset Function
When the machine malfunctions or operates abnormally due to your setting of some other parameters during use, you can restore it to factory settings to solve 90% of the problems. By default, it is off. Tap once to turn it on (Settings can only be made when the machine is in standby mode, either under photovoltaic or mains power. Do not make settings until the battery indicator light is off).
Next, we will explain the last important setting: lithium battery communication. Taking a 100ah 51.2v five-degree battery as an example, the protocol can be set through the battery interface. Press item 06 to modify the protocol, click "Get" to cancel the original protocol, and then click the icon on the right to select the lithium battery protocol you want. After selecting the protocol (PES), click "Set" to complete the setting. Make sure the S485 ports of the two machines are connected correctly. Press and hold the fourth key of the all-in-one machine, find item 38. The BMS is in the default off state. Press the Enter key once, and when the right side flashes, set it to "On", then click "Confirm". Now the communication is established. The benefits of communication: battery data can be directly uploaded to the inverter. If communication is successful, the battery data will be 53v in item 13, the battery temperature will be 27.8 and the battery percentage will be 58 in item 14. The data is one-to-one corresponding. If the communication mode is turned on but the communication line is unplugged, a 56 error state (BMS communication failure) will occur. That is to say, if you have turned on the communication mode but haven't connected the communication line.
Most of the fault points are caused by human settings or abnormal overloading usage, which leads to the machine reporting faults and locking up, making it unusable. In most cases, the problem can be solved by restoring the factory settings.
