System Turns Off - Pylontech PowerCube-H1 Operation Manual

If the BMS can't receive communication from upper equipment because of the
communication is off, the "STATUS" lamp will light red after 30sec. That doesn't means
failure existed, it means this battery string is ok while the external communication is off.
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.
(4) 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 charging stage 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.

3.6.5 System turns off

When failure or before service, must turn
the battery storage system off:
(1) Soft-off the PCS
control panel.
(2) Turn off the switch between PCS
and battery
(PowerCube-H1/H2), or turn off the
power switch of PCS, to make sure no current transmission through battery string and PCS.
(3) Turn off the "Power Switch" of the
BMS.
through PCS's
string
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