.20.
5.
Installation
5.
Installation
5.3.4 Inverter monitoring connection
The inverter can be monitored via Wi-Fi or GPRS. All Canadian Solar communication devices
are optional (Figure 5.25). For connection instructions, please refer to the Canadian Solar
Monitoring Device installation manuals.
GPRS monitoring
Wi-Fi monitoring
Wi-Fi monitoring
Router
Wi-Fi box
Internet
Smart phone monitoring
PC monitoring
Web server
Figure 5.25 Wireless communication function
Monitoring system for multiple inverters
Multiple inverters can be monitored by RS-485 daisy chain configuration. (See figure 5.26).
≈
Inverter 1
Inverter 2
Inverter n
RS485 IN | OUT
RS485 IN | OUT
RS485 IN | OUT
RS485terminal
RS485
RS232
RS232
Ethernet
Wi-Fi box
RS485-232converter
PC
Router
RS485terminal
GPRS box
Internet
Internet
Figure .
Multiple inverter monitoring system
5 26
5.3.4.1 RS485 Connection
1
2
3
4
8mm
30mm
Install the RS485 communication cables through the terminal block as shown in Figure 5.27.
Recommended cable cross sectional area is 0.2 - 1.5mm
²
, the cable outer diameter is
5mm -10mm, the cable length shall not exceed 3m.
Figure 5.27 RS485 Terminal Definition
N
O
.
Port definition
Description
1
2
3
4
RS485A1,RS485 differential
RS485B1,RS485 differential signal-
RS485A2,RS485 differential
RS485B2,RS485 differential signal-
RS485A1 IN
RS485B1 IN
RS485A2 OUT
RS485B2 OUT
Table 5.2 Port definition
Terminal block connection
a. Use a wire stripper to peel off the insulation layer of the communication cables to a
certain length as shown in Figure 5.28.
b. Screw off the covers of "COM2" and "COM3" on the inverter as shown in Figure 5.29.
c. Insert the communication cables into the "COM2" and "COM3" ports.
d. Fasten the cables onto the pluggable terminals provided in the accessory package.
e. Match the pluggable terminals to the terminal block in the inverter and press to fasten it.
Figure 5.28
.21.
Figure 5.29
After cable installation, please remember to fasten the screws of the AC terminal cover in
case of water damage.
