6
.
3
Communication Connection
6.3.1 RS 485
6.3.2
USB
The MAC series comes standard with two RS485 interfaces, and you can monitor one or
more inverters via RS485. Another RS485 port is used to connect the smart meter (single
machine anti-backflow function). When connecting the RS485 communication line to a
single unit, please follow the instructions below.
1>Loosen the AC protective cover and remove the protective cover;
2>Pass the RS 485 communication cable through the waterproof rubber plug and
connect to the RS485 interface;
3)>The inverter is connected hand-in-hand through the RS 485 communication line. The
RS485A1 and RS485B1 (4/5/6 port or 7/8/9 port) at the end of the 485 cable are
connected to the ShineMaster for remote server monitoring
4>Lock the protective casing on the inverter frame to prevent water ingress.
Figure 6.5
Figure 6.6
●
The USB port is mainly used to connect to the monitoring module or firmware update:
●
External optional data collector
（
Shine GPRS-X
，
Shine WiFi-X
，
Shine4G-X
），
Can
be connected to the USB interface for monitoring.
●
Quickly update software with U disk.
●
Steps for installing the monitoring module: Make sure
△
is on the front side, then insert
the display and tighten the screws.
Figure 6.7
19
20
When multiple machines are connected in parallel, two customers use RS485 wiring
ports (4/5/6 and 7/8/9 ports) at the same time, and use multiple twisted pairs with
shielding layers to connect multiple inverters by hand. Parallel connection through the
RS485 communication line, an inverter (defined as the first) is connected to the
monitoring equipment to achieve multi-machine monitoring, the number of parallel
machines can reach 32 units. When multiple machines are connected in parallel or the
transmission distance is long, it is recommended to switch the DIP switch 2 of the last
inverter from the left side to the right side to introduce a matching resistor. Refer to the
following figure for wiring:
No.
Definition
Description
1
RS485B2
RS485A2 / B2
：
Anti-backflow
communication port, connected to smart
meter
2
GND
3
RS485A2
4 / 7
RS485B1
RS485A1 / B1
：
The customer uses the
communication port to connect to the
third-party monitoring equipment
5 / 8
GND
6 / 9
RS485A1
Disassembly
Install
The Inverter Side
The Inverter Side
The Inverter Side
The Inverter Side
GND
TR
+
TR
-
1
4
5
6 7
8
9
2
32
ShineMaster
cable
router
RS 485 twisted pair cable
Multiple
inverters
