7. Troubleshooting
7. Troubleshooting
Step3: Press DOWN to select Alarm Message, then press ENTER.
Settings
Advanced
Information
2015-02-23 19 35
Warning Message
Yield Profile
Running
Status
Communication Data
Alarm Message
Alarm Message
G-IMP
NO-GRID
OV-BUS
GRID-INTF01/02
INI-FAULT
Failure description
High grid impedance
No grid voltage
Over DC bus voltage
Grid interference
Initialization system fault
Solution
1. Check connections and grid switch.
2. Verify the grid voltage is correct on the
AC Terminals inside the inverter wiring box.
1. Check PV input connections.
2. Check DC input voltage
(single phase >120V, three phase >350V).
3. Check if PV+/
-
is reversed.
Inverter no power
on LCD
No power
LCD show initializing
all the time
NO-Battery
Can not start-up
Unconnected battery
1. Check if the connectors on the main board
or power board are secure.
2. Check if the DSP connection to the power
board is secure.
1. Ensure the battery is connected properly.
2. Verify the output battery voltage is correct.
1. Restart inverter or contact installer.
DC-INTF
IGFOL-F
Grid current tracking fail
IG-AD
Grid current sampling fail
DSP-B-FAULT
Comm. failure between main
and slave DSP
ILeak-PRO
01/02/03/04
DCinj-FAULT
leakage current protection
High DC injection current
AFCI Check FAULT
AFCI module self check fault
1. Check AC and DC connection.
2. Check inverter inside cable connection.
1. Restart inverter or contact installer.
1. Restart inverter or contact installer.
ARC-FAULT
ARC detected in DC circuit
1. Check if there is an arc in the PV
connection and restart inverter.
DC input overcurrent
1. Restart inverter.
2. Identify and remove the string related to the
faulty MPPT.
3. Change power board.
1. User design function allows the protection
limit to be adjusted if it is allowed by
electrical company.
1. Restart inverter or contact installer.
1. Restart inverter or contact installer.
1. Check inverter inductor connection.
2. Check driver connection.
1. Restart inverter.
2. Change power board.
IGBT-OV-I
Over IGBT current
.64.
.65.