3.3 Parallel Battery Operating Conditions
1. The voltage difference between any of the Battery Modules in the stack must not be greater than 2V, otherwise
the BMS will not allow the batteries to be activated in a parallel connection.
2. SoC of each battery in the stack must be the same (Check the SOC of each individual battery module before
connecting in parallel).
3. The power cabling between the Battery Modules must be in accordance with section 3.2 of this manual.
4. All DIP switches are configured in accordance with section 3.1 of this manual.
5. The RS485 inter battery data connections must be properly connected as per section 3.1 of this manual. The
data connection “Daisy Chain” must start from PORT-B of the Master Module (do no install the RS485 on the
PORT-A of the master battery as it will result in a fault).
6. Connect the CAN A PORT of the master Module with the CAN PORT of the inverter and make sure that the
communication is working properly by checking the inverter display.
7. Before activating the system, the operator should check the cable connections carefully and make sure that
all safety procedures are respected. Check the inverter settings and connection before turning on. In case of
an inverter without communication, make sure to set the voltage and current value as per the charge/discharge
parameters provided in this manual.
3.3.1 Power on of Parallel Batteries (From Master to last module for a maximum of 15)
• Turn ON the Power Switch on all battery modules to be connected in parallel.
• Press the Master RUN Button for 2-seconds. The GREEN RUN light should come on. The battery has been
activated normally.
• Each sub module will start up automatically.
3.3.2 Shutdown of Parallel Batteries
• Press and hold the Master Run Button for 5-seconds. The GREEN RUN light of Master Module will go off. The
GREEN RUN lights on the sub batteries will not be extinguished immediately.
• The GREEN RUN lights of sub batteries will remain on for one minute, then they will go off on all sub batteries.
• Turn OFF the POWER SWITCH of each battery.
The parallel battery system has now turned off correctly
NOTE:
The RUN button might flash for several minutes, this process Is normal when there is an upgrade ongoing
or when there is a new FW detected.
Even if the contactor is OPEN, (OPEN CIRCUIT) the BMS can still operate in background, please let the
process complete and wait for the RUN BUTTON to stop flashing waiting for the automatic shutdown.
A forced shut down is possible by putting the main switch in (0) position, this might cause the
interruption of FW upgrade pushed from the APP or from the Local software XP MANAGER .
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