Usb - Growatt MAC 30KTL3-X LV Installation & Operation Manual

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:

6.3.2 USB

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.
2 GND communication port, connected to
3 RS485A2
4 / 7 RS485B1
RS485A1 / B1： The customer uses
5 / 8 GND the communication port to connect to
the third-party monitoring equipment.
6 / 9 RS485A1
Install
smart meter
Disassembly
21 / 57
编号：GR-UM-C -00