36
Electrical Connection Electrical Connection
37
CT Connection:
Ø
CT connection diagram
The current sensor measures the current on the phase wire that runs between
the inverter and the grid.
Electrical
grid
Home Electric meter
Load
L
N
L line
CT
Public Grid
Meter port on the
bottom of inverter
Important: The arrows direction on the CT
must point to the public grid side.
CT
EPS
Grid
+
PV1 PV2 BAT
+ +
- - -
ON
OFF
WiFi
RF
Upgr ade
DRM/Meter
LAN
BMS
CAN/ GEN
Note！
CT function can only be worked with the X1-Hybrid E version or I version
Inverter. The C version inverter can not work with CT connected.
CT PIN DefinitionØ
The CT PIN definition is pin5 and pin6 shown as below.
pin5
pin6
CT Connection Steps:
• Do not place the CT on the N Wire or the earth wire.
• Do not place the CT on the N and L wire simultaneously.
• Do not place the CT with the arrow pointing to the inverter side.
• Do not place the CT on the non-insulated wires.
• Do not use the wire over 25m.
NOTE!
two comm cables
Screw cap
CT clamp
CT structural decomposition
communication line
Step1. Insert the side with two comm cables of CT into the Meter port on the
inverter, and screw down the screw cap tightly.
Step2. Trip the insulation from the communication wires, then insert one side
of wires into pin5 and pin 6 holes of the 8 pin positive terminal which can be
found in accessories package. And then screw them tightly.
Step1
10.0mm
conductor
Step4
Step3. Insert the positive terminal into the corresponding negative terminal block
inside of the inverter. And then screw it tightly.
Step4. Clip the CT clamp on L line from the home main meter box side. Make sure
the current sensor is installed in the right direction: The arrow on the current
sensor must point to the public grid.
+
-
WiFi/LAN/GPRS
485
BMS
Upgrade
AC
BAT
DRM
Meter
Screw cap
Meter port on the inverter
CT clamp
L line from the home main meter box side.
arrow point to the public grid
public grid side
inverter side
Step2 Step3
Torque:0.2±0.1Nm
Torque:0.4±0.1Nm
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