Alpha ESS Storion-SMILE5 Installation, Operation & Maintenance Manual page 49

4.2.4.2 Additional Function Setting
If you use Backup box, please set as below:
Step 1: Click Enable to set yes.
If external device will dispatch the system, please set as following steps:
Step 1: Please go to the function menu, choose
"ModBus" and press enter.
If you use cascading function please set as following steps:
Step 1: Please go to the function menu, choose
"Parallel" and press enter.
Step 3: Please choose "Phase" as L1 (master)
and press enter.
Step 5: please repeat Step 1 to 4 to set the other device as L2 (slave) L3 (slave).
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EMS Introduction and Set up
Step 2: Set the priority of the load,
L1＞L2＞L3
Step 2: Please set Modbus enable as yes.
Step 2: Please choose "Select" as "Yes" and
press enter.
Step 4: Please choose "Mode" as "Parallel
mode" and press enter.
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Your Smart Energy
Page 47