6.4 Battery Connection
Charging & discharging system of X3-Retro Fit series inverter is designed for
high-voltage lithium battery
.
Before choosing battery, please note the maximum voltage of battery can not
exceed
800V
and the rated voltage of battery can not exceed
400V
, and the
battery communication should be compatible with X3-Retro Fit inverter.
Before connecting to battey, please install a nonpolarized DC breaker to make sure
inverter can be securely disconnected during maintanance.
Battery breaker
Ø
Voltage
Current[A]
50A
Model
Nominal voltage of DC breaker should be larger than maximum
voltage of battery.
Battery connection diagram
Ø
Power Connection Steps:
Ø
Step2
. Insert the stripped cable into the battery power connectors(negative cable
for DC plug(-) and positive cable for DC ) are live). Hold the housing
on the screw connection.(Tightening torque:3.0Nm)
Step3
. Press down the spring clamp until it clicks audibly into its place.(The wire
strands must be visible in the chamber)(Tightening torque: 3.0±0.1Nm)
Step1.
Choose the 9 AWG wire and strip the cable to 15mm.
Communication interface bewteen inverter and battery is CAN with a RJ45
connector.
BMS PIN Definition
Ø
Note
！
The battery communication can only work when the battery BMS is
compatible with the inverter.
Step4
. Tighten the screw connectors(Tightening torque:3.0Nm)
Note: The positive and negative lines must be connected correctly to the BAT+ and BAT- terminals.
Otherwise it may cause damage or fire to the inverter.
Electrical Connection
Electrical Connection
Step5
. Plug the BAT conntector into the corresponding BAT connector on inverter.
32
33
BMS_CANH
GND
BMS_485A
BMS_485B
GND
NTC
BMS_CANL
Definition
2
3
4
5
6
7
8
1
PIN
1
8
DC plug housing(-)
DC socket h)
screw connection
screw connection
spring
chamber
wire strands
Note: BAT port!
Step2
.
Step3
.
Step 4
.
Step5
.
X3-Fit-8.0E
X3-Fit-8.0C
X3-Fit-10.0E
X3-Fit-10.0C
Note:
When working with Pylontech batteries, It is recommended the number of battery module
(H48050-15S) is 4-15 and the number of battery manager system (SC0500A-100S) is 1.
When working with SOLAX batteries, It is recommended the number of battery module
(HV10045/HV10063) is 2-4 and the number of battery controller(MC0500) is 1.
For Triple Power 5.8 battery, the number of T-BAT H 5.8 is 1 and HV11550 is 1-3.
GND
high-voltage lithium battery
.
+
-
CAN
Nonpolarized
DC breaker
Power connection
Communication connection
COM
Tightening torque: 2.0Nm
