SolaX Power X3-IES Series - Page 118

110
Electrical Connection
Parallel Connection (P1/P2 Port)
The inverter provides the parallel connection function. Up to 10 inverters can be connected
in one system with an X3-PBOX-60kW-G2/ X3-PBOX-150kW-G2 (hereafter referred to as
X3-PBOX device). Up to 3 inverters can be connected in one system if no X3-PBOX device
is equipped. One inverter will be set as the “Master inverter” to control the other "Slave
inverters" in the system via P1/P2 port of the COM port of the inverter.
Requirments for parallel connection
• All inverters should be of the same software version.
• All inverter models should be of the same power range.
• The type and quantity of batteries connected to all inverters are the same.
System diagram
• Diagram 1: System diagram with SolaX X3-PBOX device
N
R
S
T
R PE
N
S T R
N
S T
PE
R
PE
N
S T R
N
S T
PE
R
S
T
N
R S T
N
R S T
N
PV1
PV2
BAT+ BAT- BMS
BAT+ BAT- BMS
T-BAT-SYS
COM
METER/CT
Grid
EPS
Inverter
(slaver 9)
T-BAT-SYS
PV1
PV2
GridEPS
COM
METER/CT
COM(P2)
COM(P2)
METER
COM(P1)
Grid
COM
EPS
Load
RCD
Breaker
Loads
N-BAR for EPS loads
PE-BAR
N-BAR for loads
Loads
Breaker
Breaker
PE-BAR
Main
breaker
Meter
Grid
Inverter
(master)
X3-PBOX devices
Figure 7-40 System diagram with SolaX X3-PBOX device