Afore On-Grid - Page 46

Trouble-Shooting List
GFCI Fault
Ground Fault
Circuit Interrupter
fault
Ground Fault Circuit
Interrupter fault
restart the inverter
Bus High
Fault/Bus
Fault
Bus Voltage High
/Bus Fault
· PV Input voltage high
· AC side poor connection
· check PV input voltage within
450Vdc(up to 3.0kw model),
500Vdc(up to 5.0kw model)
· check AC connector, circuit breaker
well connection
No Utility Utility loss
· utility loss
· AC side circuit breaker
turn off
· AC side poor connection
· inverter fault
· grid back to the normal, the inverter
will restart automatically
· replace the AC circuit breaker
· check AC connector well
connection
· after seceral retart the fault remains,
replace inverter
Ground
Current
Fault
Leakage current
high
1. poor earthing, leakage
current high
2. PV(+) or PV(-) earthed
1. check the AC output wring and
restart the inverter
2. check PV array wiring
Over
Temperatu
re Fault
Inverter too hot
· inverter enclosure too hot
· temperatrue sensor fault
· turn off the inverter still the
temperature down to the normal. Or
install the inverter at a well ventilated
site.
· replace the temperature sensor
PV Over
Fault
PV input voltage
high
· PV array's Voc high
· re-design the PV array
configuration
· measure the PV array voltage is the
same as inverter displayed.
M Grid
Volt Fault
Grid voltage out of
range
· grid voltage out of the
setting range
· grid back to the normal, the inverter
will restart automatically
· check Country standard setting is
correct
Isolation
Fault
Insulation
Resistance high
· PV(+) or PV(-
Code
Error
Display
Error Message Possible Fault Correctie Measure
E0
E6/E11
E9
E10
E13
E15
E17
E18 ) earthed
check the resistance between PV(+)
and ground, PV(-) and ground bigger
than 2MΩ.
E19
E12
E24
E29
Current
DC Offset
DC bias high · AC side DC bias high restart the inverter
Over
Current
Over current fault
· grid fluctuate
· AC side poor connection
· the inverter will restart automatically
· check the AC output wring and
restart the inverter
Relay 1/2
Fault
Relay fault · inverter fault restart the inverter
MGrid
FreqFault
Grid frequency out
of range
· grid fluctuate
· grid frequency out of
setting
range
· grid back to the normal, the inverter
will restart automatically
· check inverter frequency setting
range correct
Maintenance&Trouble Shooting
44