CPS SCH275KTL-DO/US-800, Руководство пользователя, Страница: 62 / 79

Troubleshooting
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Protect0030
(Inverter
Over
Current)
1.
Restart inverter by recycle both AC and DC
switches.
2.
Wait for 1 minute between OFF and ON for
all energy to discharge.
3.
If inverter cannot clear fault, replace inverter.
GridV.OutLim
1.
Make sure the grid connection is good.
2.
Restart the inverter again.
GridF.OutLim
1.
Check the AC wires connection and AC
frequency is in range;
2.
Check the measurement value in LCD, if the
grid frequency is in limit, restart the inverter.
Protect0020
(Grid relay error)
1.
Restart inverter by recycle both AC and DC
switches.
2.
Wait for 1 minute between OFF and ON for
all energy to discharge.
3.
If inverter cannot clear fault, replace inverter.
TempOver
(Over-temperature
protection)
1.
Confirm that external ambient temperature
is within the specified range of operating
temperature;
2.
Check whether air inlet is blocked;
3.
Check whether fan is blocked;
4.
Check whether the location of installation is
appropriate or not;
5.
Observe for 30 minutes and see whether the
alarm will be eliminated automatically;
6.
Contact after-sales service personnel.
Protect0180
(The sampling offset
of DCI)
1.
If the inverter can start up, then recalibrate.
2.
If the inverter always report this alarm and
cannot start up, then replace inverter.
Protect0170
(DCI high)
1.
Raise limit of DCImax (for example, 400mA)
to allow inverter more room to adjust in
transient condition to cope with imbalance of
impedance and voltage between Grid
phases
2.
After raising limit, if inverter cannot clear
fault, replace inverter.
IsolationErr
(Insulation
resistance low)
Check wires of PV and ground:
1.
Turn OFF AC switch to disconnect inverter
from Grid.
2.
Open fuse drawers to de-couple PV strings
from each other. Test strings with string test
set.
3.
Add one PV string at a time, and start up
inverter to see if alarm occurs.