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Communication Connection
Serial Connection
Please use the supplied serial cable to connect between the inverter and your PC. Install the monitoring
software from the bundled CD and follow the on-screen instructions to complete your installation. For detailed
software operation, refer to the software user manual on the bundled CD.
Wi-Fi Connection
This unit is equipped with a Wi-Fi transmitter. Wi-Fi transmitter can enable wireless communication between
off-grid inverters and monitoring platform. Users can access and control the monitored inverter with
downloaded APP. You may find "WatchPower" app from the Apple
Play Store. All data loggers and parameters are saved in iCloud. For quick installation and operation, please
check Appendix III.
Dry Contact Signal
There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to external
device when battery voltage reaches warning level.
Unit Status
Power Off
Unit is off and no output is powered.
Output is
powered
from Battery
power or
Solar energy.
Power On
BMS Communication
It is recommended to purchase a special communication cable if you are connecting to Lithium-Ion battery
Appendix II- BMS Communication Installation
banks. Please refer to
Condition
Program 01
Battery voltage < Low DC
set as USB
warning voltage
(utility first)
Battery voltage > Setting
or SUB (solar
value in Program 13 or
first)
battery charging reaches
floating stage
Program 01
Battery voltage < Setting
is set as SBU
value in Program 12
(SBU priority)
Battery voltage > Setting
value in Program 13 or
battery charging reaches
floating stage
12
®
Store or "WatchPower Wi-Fi" in Google
Dry contact port:
NC & C
Close
Open
Close
Open
Close
for details.
®
NO & C
Open
Close
Open
Close
Open
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