8.2 PYLONTECH BATTERIES IN PARALLEL
3.1 Battery connection
In case of MULTIPLE BATTERIES, connect the communication cable from the
COM
port of the inverter to
the
CAN-A
port of the MASTER battery, after having defined the correct positioning of the DIP Switches
(see following pages).
9.2.2 WECO 4K4PRO BATTERIES IN PARALLEL
Communication connections between batteries and inverter:
Batteries
are connected
IN PARALLEL
to each other.
•
CAN-A of
master battery
COM Port of
inverter
•
RS485-B of
master battery
RS485-A of
slave 1 battery
•
RS485-B of
slave 1 battery
RS485-A of
slave 2 battery
•
…
•
RS485-B of
slave N-1 battery
(second last)
RS485-A of
slave N battery
(last)
Power connections between batteries and inverter:
Batteries must be connected in a "loop.”
•
Positive input (+) of
master battery
connected to positive input (+) of
inverter
.
•
Positive input (+) of
master battery
connected to positive input (+) of
slave 1 battery
.
•
Negative input (-) of
master battery
connected to negative input (-) of
slave 1 battery
.
•
…..
•
Positive input (+) of
slave N-1 battery
(second-last) connected to positive input (+) of
slave N battery
(last).
•
Negative input (-) of
slave N-1 battery
(second-last) connected to negative input (-) of
slave N battery
(last).
•
Negative input (-) of
slave N battery
(second-last) connected to negative input (-) of
inverter
.
NOTE:
When switched on for the first time, the WeCo batteries receive a command from the inverter to
start regular operation only when all of them have collectively reached a state of full charge (i.e. a SOC
level of 100%).
