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7
Parallel Connection Scenario
7.1
Setting the DIP Switch
Power on the iSitePower-Ms and set the same output parameters for the master and slave
1.
products.
Power off the iSitePower-Ms and set address DIP switches for the master and slave products.
2.
Scenario
Master
Parallel
Slave 1
products
Slave 2
The address DIP switches take effect only after the devices are restarted. Set the DIP switches
when the devices are powered off (AC and DC inputs are disconnected, and the manual ON/OFF
switch is turned off).
7.2
Installing Communications Cables Between Parallel Power Modules
7.3
Installing Monitoring Communications Cables in a Parallel System
Address DIP Switch
1
2
3
When installing communications cables between parallel power
•
modules, install build-out resistors at the first level and last level.
The length of a single communications cable cannot exceed 3 m.
•
The method of installing communications cables between power
•
modules is the same as that between battery modules.
Router
Pin 1 (M/S)
Pin 2 (A)
ON
OFF
OFF
ON
OFF
OFF
FusionSolar Smart PV Management System
22
Pin 3 (B)
Pin 4 (C)
OFF
OFF
ON
The FE1 and FE2 ports on the
master and slave products are
used for different functions.
Connect the FE2 port on the
master product to the FE1
port on the slave product.
Otherwise, the parallel
communication will fail.
OFF
OFF
OFF
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