Pylontech PowerCube-M1 Operation Manual page 34

If every battery string are working normally.
☐
18 Then switch the MBMS on. The MBMS will self-check and
check each battery string one by one.
The first installation should do full charging progress.
After MBMS has communicated with each BMS, it will
run parallel operation. It will begin from lowest voltage
☐
19 battery string to do the parallel operation during the
charging.
If the status LED of BMS turns to green, it means this
battery string is in parallel operation.
Turn on the "POWER OUTPUT SWITCH":

Turn on the "Power Switch":

The battery string's system will check itself, if

work normal the battery string system will
goes into
self-check
If has failure during the self-check, must debug
the failure then can start next step.
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mode.
Refer to chapter
3.6.4.
The first
installation should
do full charging
progress.
19PIMV0802