8 Work Modes
PC series inverters have the
following main work modes based on different conditions:
Mode1
：
Energy produced by the PV system priority for local load,
excess energy is used
to charge the battery, finally
remaining is delivered to the grid.
Mode2
：
If there is no PV, battery energy is used for local load
first, the grid also can supply when the battery capacity
is not enough.
Mode3
：
If the grid is fault or there is no grid, the system can still
work, PV and batteries supply energy for local load.
Mode4
：
The battery can be charged by the grid, time and power
of battery charging can be set up flexibly.
9 Trouble shooting
Q/A and Trouble Shooting on PC
(+/-)
not reversed
PLEASE CHECK THE FOLLOWING ITEMS AT THE FIRST INSTALLATION, MAKE SURE EVERYTHING IS FINE. OR PLEASE
STOP INVERTER SYSTEM TILL EVERY THING CONFIRMED FINE OR CONTACT .
Checking Items Checking Description
Check items before PC
start-up
Battery connection Confirm the connection between PC and battery : polarity ( +/-) not reversed
PV INPUT connection
Confirm the connection between PC and PV panels : polarity (+ /-) n ot
reversed
AC OUTPUT Connection
power
Back-up to loads : polarity
Confirm ON-GRID connected to
and
grid
(+/-)not reversed
PCmeter / CT connection
Make sure PCmeter & CT connected between house loads and grid. and follow
the House
→
Grid direction sign on CT.
Checking items when start up system
CT & PCmeter
connection direction
BMS Communication
Checking details
：
1. Check if the COM led on PCmeter triple blinking or not.
2. Or connect Solar-Wifi, check in Phonocube App (“Parameters”) if
PCmeter COM state is “OK” or not.
If COM led does not blink, or show “NG” on App, then please check
the connection between PCmeter and PC, like:
1. RJ45 port broken or not;
2. communication cable looses or broken?
3. PCmeter should connect to PC RS485 port.
If everything is Ok, but problem still there, please contact
after-sales services.
PCmeter
Communication
check
NOTE: do not need check if it is Lead-acid battery.
For lithium battery, please check following:
Connect Solar-Wifi, check on Phonocube APP (Parameter >>> Battery) if
BMS status shows “BMS Communication OK” or not.
If APP BMS Status on APP says“BMS Communication Failure”, please
reboot PC. if problem is still there, please check further:
a. check on Phonocube APP (Basic Setting) if Battery type is right what you
have or not, if not right, please set it right in “Basic Setting”
b. Connection between battery and PC is OK or not;
c. communication cable looses or broken?
d. RJ45 port/cables broken or not;
If everything is Ok, but problem still there, please contact after-
sales services.
1. Turn off PV and open Loads, check if R-P led is solid or not.
If “R-P” not solid, please check
a. if CT or PCmeter connected in a wrong direction (the arrow on
PCmeter & CT should point to grid);
b. if connection between PCmeter and CT (port 1 and 4 on PCmeter) is
OK or not.
If both are OK but problem still there, please contact after-sales
services.
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