Pylontech PowerCube-X1 Operation Manual page 19

Warning: If has failure during the self-check, must debug the failure then can start next step.
If the "STATUS" lamp shows red from beginning, it means there has some failure in the
battery string, the Power Relays in BMS will open, must debug at first.
Note: The LED lamp will be off in 20sec without any operation.
Caution: During first time power on, the system will require to do fully charge progress for SOC
calibration purpose.
Caution: The whole Battery Energy Storage System (BESS) after installation or restart the system
when long time not in using should charge it to full at first. There will be a regularly (3 month) fully
charge requesting during continuous operation as well, it will be handled automatically
by the communication between BESS and external device.
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Black-start function:
The system's relay can be closed by pressing the start button 5s.
And it is necessary to press the start button of the BMS which is connected with MBMS
when you want to use black-start function.
Warning: if the black-start function is used, the terminal of DC "+" and DC "-" will be electricity
dangerous with high DC voltage output.
(3) Switch the MBMS on after all the BMS turn on successful:
And check whether MBMS is working. The "STATUS" lamp will light green.
When the voltage difference between strings is smaller than the parameter, the battery string will do
the parallel operation. Then the power relays in BMS will switch ON after 30 seconds.The "STATUS" lamp
of the BMS will light green; When the voltage difference between strings is bigger than the parameter,
the battery string will NOT do the parallel operation, the "STATUS" lamp of the BMS will light red, but it is
normal; Such battery string will be paralleled in during chargingstage automatically.
Note: If the MBMS can't build communication with other equipment, the system can't work normally.
External device should communicate with battery system through LAN, CAN or RS485. Otherwise maybe
cause battery system work abnormal.
Caution: During first time power on, the system will require to do fully charge progress for SOC
calibration purpose.
Caution: The whole Battery Energy Storage System (BESS) after installation or restart the system
when long time not in using should charge it to full at first. There will be a regularly (3
month) fully charge requesting during continuous operation as well, it will be handled
automatically by the communication between BESS and external device.
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