22
There are two LEDS on the panel. Different LED status means inverter different working statutes.
Table 5 LED status
Information List
WaitState
ICheckState
NormalState
FaultState
PermanentState
GREEN LED
FLASH
FLASH
ON
OFF
OFF
RED LED
X
X
X
ON
ON
Figure 15 HMI Interface
WaitState:
Inverter is waiting to CheckState until the end of reconnection time. In this state,
the PV voltage is more than 250V and grid voltage value is between the max and min limit;
Otherwise, Inverter will go to FaultState or PermernentState.
CheckState:
Inverter will check isolation resistor, relays, and other safety requirements. It will
also do self-test to ensure inverter software and hardware are functional. Inverter will go to
FaultState or PermernentState if any error or fault occurs.
NormalState:
Inverter feeds to grid energy from PV panel as much as possible according MPP
trackers. Inverter will go to FaultState or PermernentState if any error or fault occurs.
FaultState:
Inverter has occurred some recoverable error. It can recover if the errors disappear.
If FaultState exist continually, you should check the inverter according error code in table 6,7,8.
PermenentState:
Inverter has occurred some unrecoverable error. It will stay in PermenentState.
You should take some measure according the error code.
Operation
