Grid fault (W/A)
GUI fault (W/A)
High voltage on input side
(A)
Low voltage on input side
(A)
Low PV isolation resistance
(A)
Failure on DC side (W/A)
Failure on AC side (W/A)
High inverter temperature
(W/A)
User Manual THEIA HE-t String Inverters
No detection of the grid,
not able to synchronize
with the grid or fault
within the country-
settings
Display is not responding
DC voltage threshold of
600 V
is exceeded
DC
DC voltage is too low to
operate the inverter
PV isolation resistance is
below permitted level
Inverter failure on the DC
side
Inverter failure on the AC
side
Maximum permissible
internal inverter
temperature is exceeded
,
357115.013
Issue 1.0, 2011 April
- Verify if the AC circuit breaker is
ON and operational
- Measure that the grid voltage is
present at the AC terminals
- Check that the DC switch(es) is
ON and that the DC power is > 7W
- Check that the country settings
have been successfully set in
Setup>Grid Setup
- If country is set to Italy, has the
Self-Test failed. Run test again
- Turn off the AC side. Wait for 3
seconds and then turn on again.
Wait 30 seconds for the GUI to turn
on
- If still fault, contact your
distributor
- Contact your distributor
- Fault is cleared automatically
when PV voltage exceeds 230 V
- If the inverter remains in this fault
during daylight, and the V
>230V, contact your distributor
- Check the position of the DC
jumper (See
Jumper Position for
the System
Setup)
- If the jumper is correctly
positioned, contact your distributor
- Failure on the DC side. Other
W/A will be displayed
- If the inverter is in Shutdown, turn
off the AC side and then the DC
side. Wait for 30 seconds, then turn
on the AC side and then the DC
side
- If the fault persists, contact your
distributor
- Failure on the AC side. Other
W/A will be displayed
- If the inverter is in Shutdown, turn
off the AC side and then the DC
side. Wait for 30 seconds, then turn
on the AC side and then the DC
side
- If the fault persists, contact your
distributor
- Check that the ambient
temperature is within the
specification (See
10. Technical
Data)
- Check if the ventilation is
sufficient, the minimum distances
are compliant with those stated in
is
DC
63
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