.20.
5. Installation5. Installation
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 21
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 5.22.
Recommended cable cross sectional area is 0.2 - 1.5mm², the cable outer diameter is
5mm -10mm.
Figure 5.22 RS485 Terminal Definition
NO.
Port definition
Description
1
2
3
4
RS485A1,RS485 differential signal+
RS485B1,RS485 differential signal-
RS485A2,RS485 differential signal+
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 5.23.
b. Screw off the covers of "COM2" and "COM3" on the inverter as shown in Figure 5.24.
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 5.23
.21.
Figure 5.24
After cable installation, please remember to fasten the screws of the AC terminal cover in
case of water damage.
5.3.5 Max. over current protection device (OCPD)
To protect the inverter's AC grid connection conductors, Solis recommends installing
breakers that will protect against overcurrent. The following table defines OCPD
ratings for the Solis Three phase inverters.
Table 5.3 Rating of grid OCPD
Inverter
Rated
voltage(V)
Rated output
current (Amps)
Current for protection
device (A)
S5-GC25K
220/380,230/400
38.0/36.1
45.6/43.3
50
50.1/47.6
S5-GC33K
S5-GC30K
63
63
54.7/52.0
57.0/54.1
60.8/57.7
48.1
60.1
39.4
52.5
60.4
S5-GC36K
S5-GC37.5K
S5-GC40K
S5-GC40K-HV
S5-GC50K-HV
S5-GC15K-LV
S5-GC20K-LV
S5-GC23K-LV
80
80
80
63
80
63
80
80
480
480
220
220
220
220/380,230/400
220/380,230/400
220/380,230/400
220/380,230/400
220/380,230/400
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