09
10
RS-485 interfaces are used for EzConverter and EzMeter communication. The cable length should not exceed 800m. For
the
connection methods of RS-485 please refer to chapter 4.5, chapter 4.6.
Please follow below steps to implement RS-485 connection of inverter side:
●
Remove RS-485 waterproof assembly from inverter.
●
Disconnect screw cap from insulator.
●
Disconnect waterproof ring from insulator.
●
Put the cable through the components in this order: screw cap, waterproof ring, insulator, RS-485 cover. Refer to Figure 4.4-1.
●
Put cable cores insert into the corresponding slots and compress the crystal head by professional tool, then screw down screw cap
slight. Refer to Figure 4.4-1.
●
Put crystal head insert into the corresponding inner slots of inverter.
●
Fasten RS-485 waterproof assembly to inverter.
●
Screw down screw cap again.
4.4 RS-485 Connection
Figure
4
.
3
-
4
Figure
4
.
3
-
5
Cable
core
section
after
crimp
+
----
red
cable
-
----
black
cable
Positive
terminal
Negative
terminal
Figure
4
.
3
-
6
Figure
4
.
3
-
7
Hexagon
head
screw
Pan
head
screw
4.5 EzMeter Connection
EzMeter can detect the current magnitude and direction, to control the working condition of inverter. Inverter and EzMeter
communication via RS-485, The cable length should not exceed 800m.
For
the connection method of single phase EzMeter refer to Figure 4.5-1.
Cable
Waterproof
ring
RS-485
cover
Crystal
head
Screw
cap
Insulator
Figure
4
.
4
-
1
PIN
1
2
3
4
5
6
7
8
Color
Orange/white
Orange
Green white
/
Blue
Blue white
/
Green
Brown white
/
Brown
RS-485
waterproof
assembly
RESERVED
RX RS485B
_
RX_RS485A
TX RS485B
_
TX RS485A
_
Function
RESERVED
RESERVED
RESERVED
Load
PIN
1
2
3
4
5
6
7
8
RESERVED
RX RS485B
_
RX_RS485A
TX RS485B
_
TX RS485A
_
Function
Color
Orange white
/
Orange
Green white
/
Blue
Blue white
/
Green
Brown white
/
Brown
RESERVED
RESERVED
RESERVED
Breaker
Connection
Illustration
of
Single
Phase
System
T568B
Grid
Figure
4
.
5
-
1
EzMeter
If
the light is flashing, the connection is ok.
Breaker
RESERVED
Function
Color
Orange/white
Orange
Green white
/
Blue
Blue white
/
Green
Brown white
/
Brown
RESERVED
RESERVED
RESERVED
