.24.
N
O
.
Port definition
Description
1
2
3
4
Connection
of
Terminal
board.
a. Strip the insulation and shield to a suitable length. Use diagram below as a guide.
(in Figure 5.26).
5.3.6.1 RS485 Communication connection
8mm
30mm
Figure 5
.
27
Table 5.3 Port definition
Monitoring system for multiple inverters
Multiple inverters can be monitored by RS-485 daisy chain configuration. (See figure 5.23).
多台逆变器与电脑或数据采集器通讯时时，必须通过液晶设置通讯参数。
≈
Inverter 1
Inverter 2
Inverter n
RS485 IN | OUT
RS485 IN | OUT
RS485 IN | OUT
RS485
terminal
RS485
RS232
RS232
Ethernet
Wi-Fi box
RS485-232converter
PC
Router
RS485
terminal
GPRS box
Internet
Internet
Figure . Multiple inverter monitoring system
5 23
RS-485 connection through terminal block.
RS-485 communication supports two connections on the terminal board.(See figure 5.23).
The cross sectional area of the cable wire for terminal board connection should be 0.2-1.5mm.
The outer diameter of the cable may be 5mm-10mm.
RJ45 port connection (See figure 5.29).
CAT 5E outdoor rated (cable outer diameter<9mm, internal resistanc
≤
1.5
Ω/
10m) and
shielded RJ45 connectors are recommended.
Figure 5.24 RJ45 port and Terminal board
5.
Installation
5.
Installation
Steps for connecting the RS-485 cable.
RS485A
1
,RS485 differential
RS485B
1
,RS485 differential signal-
RS485A
2
,RS485 differential
RS485B
2
,RS485 differential signal-
RS485A
1
IN
RS485B
1
IN
RS485A
2
OUT
RS485B
2
OUT
b.
Remove the cap nut from the waterproof cable glands labeled COM2 and COM3
at the bottom of the inverter. Remove the plug from the fitting. (in Figure 5.27).
.25.
485
-
IN
485
-
O
UT
1
2
3
4
Figure 5
.
25
Figure 5
.
26
c. Pass the cable through the cap nut for each port. COM2(RS485 IN) COM3(RS485 OUT).
d. Pull down the terminal block on user interface board(See Figure 5.25).
e. Firstly insert cable into terminal board, then tighten the screws (dotted area) clockwise
with slotted screwdriver; if user need to pull out cable, screws rotates anticlockwise with
slotted screwdriver(See Figure 5.28).
1
2
3
4
Figure5.28 Strip the insulation and connect to RS485
RS485A
1
IN (RS485+)
RS485B
1
IN (RS485-)
RS485A
2
OUT (RS485+)
RS485B
2
OUT (RS485-)
1 2 3
4
f. Please insert terminal board into terminal block,then will be clamped automatically.
