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3.5.3.2 Multi-groups system turns on

Warning: Double check all the power cables and communication cables. Make sure the

voltage of the inverter/PCS is same level with the battery system before connection. Check

all the power switches are OFF.

System turns on step:

1） Check all cables are connected correctly. Especially the Link 1 / Link 0 between master

and slave strings. Check grounding is connected.

2） If necessary, turn on the switch at inverter`s battery side or between inverter and battery.

If possible, turn on AC or PV power source to wake up inverter.

3） Open protect cover of Power switch. And turn on power switch of all the strings.

4) From the last string, press start button for at least 5 seconds or until buzzer rings for

start-up. Then further turn on each string one by one follow below table, the start-up interval

between each strings shall less than 30sec.:

Communication Structure

Start-up Sequence

Master string

Last Start-up

Slave string 1

5th Start-up

Slave string 2

4th Start-up (if has)

Slave string 3

3rd Start-up (if has)

Slave string 4

2nd Start-up (if has)

Slave string 5

1st Start-up (if has)

5) Battery system takes 30sec for self-checking, after all strings start-up.

If inverter is turned on by AC or PV source, then most inverter can setup communication with

BMS automatically, in this case, the BMS will close relay and system is ready for work.

If inverter needs battery power to turn on, then check the LED of battery shall be:

Status: Orange, solid

SOC: blue, solid

In this case, press the Start button for at least 10s, till the Status lighting Blue and fast flashing,

then battery will black start to support inverter and after inverter turned on and set up

communication, then BMS is ready for work.

Pylontech Force-H1-V2 User Manual

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