SolaX Power X1-Fit-3.7C User Manual

6.3 Battery Connection
Charging & discharging system of X1-Retro Fit series inverter is designed for
high-voltage lithium battery.
Before choosing battery, please note the maximum voltage of battery can not
exceed 400V and the rated voltage of battery can not exceed 350V, and the
battery communication should be compatible with X1-Retro Fit inverter.
Before connecting to battey, please install a nonpolarized breaker to make sure DC
inverter can be securely disconnected during maintanance.
Battery breakerØ
Voltage
Current[A]
32A
Model
Nominal voltage of DC breaker should be larger than maximum
voltage of battery.
Battery connection diagramØ
Power Connection Steps:
Ø
Step2. Insert the stripped cable up to the stop ( negative cable for DC plug(-) and
positive cable for DC socket(+) are live). Hold the housing on the screw
connection.
Step3. Press down spring until it clicks audibly into place.(it must be possible to
see the fine wire strands in the chamber)
Step1. Choose the 9 AWG wire and strip the cable to 15mm.
high-voltage lithium battery.
+
-
CAN/ RS485
Nonpolarized
DC breaker
Power connection
Communication connection
Communication interface bewteen inverter and battery is RS485 or CAN with a
RJ45 connector.
BMS PIN DefinitionØ
Note！
The battery communication can only work when the battery BMS is
compatible with the inverter.
DC plug housing(-)
DC socket housing(+)
screw connection
screw connection
spring
chamber
wire strands
Step4. Tighten the screw connection(tighten torque:2.0Nm)
Note: BAT port, not PV port!
Note: The positive line and negative line are not allowed to access anti-Line.
Electrical ConnectionElectrical Connection
Step5. Plug the PV conntector into the corresponding PV connector on inverter.
Step2.
Step3. Step 4.
Step5.
28
29
X1-Fit-3.7E
X1-Fit-3.7I
X1-Fit-3.7C
X1-Fit-4.6E
X1-Fit-4.6I
X1-Fit-4.6C
X1-Fit-5.0E
X1-Fit-5.0I
X1-Fit-5.0C
1
8
BMS_CANH
GNDX X
BMS_CANL
Definition
2
3 4
5
6 7 81
PIN
BMS_485A BMS_485B
GNDX X
Definition
CAN
Rs485
X X X
X X X
When using RS485 protocol, please note that PIN2 must be disconnected.
EPS
CAN/G EN
LAN/D RM
Grid
WiFi
RF
BMS/Meter
Upgra de
+
PV1 PV2 B AT
+ +
- - -
ON
OFF
EPS
CAN/G EN
LAN/D RM
Grid
BMS/Meter
Upgra de
PV1 PV2 BAT
+
- - -
ON
OFF
++
Note: When working with Pylontech batteries, It is recommended the number of battery module
(H48050-15S) is 2-7 and the number of battery manager system (SC0500A-100S) is 1.

SolaX Power X1-Fit-3.7C Specifications

General

Brand	SolaX Power
Model	X1-Fit-3.7C
Category	Inverter
Language	English