Parallel Communication - WESTECH Solax X3-HYBRID G4 Manual

Electrical Connection
5.5.3 Parallel Connection
X3-Hybrid G4 Series Inverter provides the parallel connection function
which should make 6 inverters maximumly connected in one system. In
this system, one inverter will be set as the "Master inverter" which will
control every other inverters. This system needs to be equipped with an
X3-Parallel Box or X3-EPS Parallel Box, and communicate with the
"Master Inverter", and all other slave inverters are connected to the
"Master Inverter" in parallel via CAN cable.
If users want to use the parallel function, please contact SolaX for consultation
and purchase X3-Parallel Box or X3-EPS Parallel products.
Ø
System Diagram
+ -
PV+ PV-
Battery
... ...
X3-Hybrid G4 Inverter
Slave
EPS
Grid
R S T N R S T N CAN PE CAN CAN
R S T N L N
... ...
three-phase single-phase
Critical Load Critical Load
54
+ -
PV+ PV-
Battery
X3-Hybrid G4 Inverter
Master
EPS
Grid
CAN R S T N R S T N CAN Meter PE
485
SOLAX
Meter
R S T N
COM
R Grid
S
T
N
X3-Parallel Box
R
S
T
N
R S T N L N
L N
three-phase single-phase
single-phase
Normal Load Normal Load
Critical Load
Ø
Work Modes in parallel system
There are three work modes in parallel system, and your acknowledge
of different inverter's work modes will help you understand parallel system
better, therefore please read it carefully before operating.
Free mode
Master mode
Slave mode
Ø
Wiring Operation and LCD Setting
Step1: Connect all inverters' communication together by connecting CAT7
R
S
network cables between CAN ports.
T
N
- Use standard CAT7 network cables for CAN-CAN connection and CAT5
cable for CAN-COM(X3-Paralle Box) connection.
Grid
- Insert one side of CAT7 cable into the rst inverter's CAN port and the
other side into the next inverter's CAN port.
- Insert one side of CAT5 cable into the COM port of meter, and the
other side into the CAN 1 port the master inverter.
- Insert one side of CAT5 cable Meter, and the other side into the Meter
port the master inverter.
X3-Hybrid G4 Inverter
slave9
Only if no one inverter is set as a "Master", all inverters are in
free mode in the system.
When one inverter is set as a "Master", this inverter enters master
mode.
Master mode can be changed to free mode.
Once one inverter is set as a "Master", all other inverters will
enter slave mode automatically. slave mode can not be
changed from other modes by LCD setting.
Note: Before operation, please make sure that the inverter
meets the following three conditions,
1. The software version of all inverters is the same;
2. The power range of all inverter models is the same;
3. The type and quantity of batteries connected to all
inverters are the same;
Otherwise, this function cannot be used.
......
X3-Hybrid G4 Inverter X3-Hybrid G4 Inverter
slave8 slave1
CAN1 CAN2 CAN1 CAN2 CAN1 CAN2
CAT7 CAT7 CAT7
Electrical Connection
X3-Hybrid G4 Inverter
Master
SOLAX
CAN1 CAN2 CAN1 Meter
Meter
CAT5
CAT7 CAT5
X3-Parallel
COM
Box
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