User Manual

CT Connection:
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CT connection diagram
Electrical
grid
Home Electric meter
Load
L
N
L line
CT
Public Grid
RS485 port on the
bottom of inverter
The current sensor measures the current on the phase wire that runs between
the inverter and the grid.
Important: The arrows direction on the CT
must point to the public grid side.
CT
When connectingthe RJ45 connector with the wire of the CT, please follow the
below sequence :
CT PIN Definition

1
8
RS 485 is one standard communication interface which can transmit the real data
from inverter to PC or other monitoring equipments.
a. RS 485
RS 485/Meter/CT/DRM
b. Meter/CT(optional)
The PIN denitions of RS 485/Meter interface are as below.

1
8
With this single phase meter working together with the X1 series, you can:
(1) Monitor the energy to grid and from grid through the whole day.
(2) Achieve the export control function with a higher accuracy.
X1
PIN
Definition
1
X
4
Meter_A/
7
E_Stop
5
Meter_B/
8
RefGen
2
Com/DRM0
3
GND_COM
6
X
485_A
485_B
Electrical
grid
Electric meter
bidirectional
Load
X1 series inverter
X1
Single phase meter
Note！
It is necessary to connect meter to inverter otherwise inverter will
shutdown with a “Meter fault” alert.
The smart meter must be authorized by Solax, any third party or
non-authorized meter may not match with the inverter.
Solax will not take the responsibility if the meter is unavailable.
Installation Installation
24 25
RS485
PIN
Definition
1
CT+
4
X
7
X
5
X
8
CT-
2
X
3
X
6
X