PVI 1800/PVI 2500
Installation and Operation Manual
31
External faults
External faults are primarily faults caused by the utility company but can also be associated with
mounting of the inverter and length of the AC lines; they concern the frequency and voltage. Such faults
can also occur temporarily. The PVI 1800/PVI 2500 will, however, resume full automatic power feed
after a short interruption. If the grid frequency or voltage is more or less that values prescribed by
UL1741, the inverter will not re-start for 5 minutes and will display: “wait for restart” on the LCD display
during this 5 minute period.
Code
Designation
Condition
Solution
203
Grid frequency too high
The inverter switches over to
normal power/feed mode as soon
as the grid frequency returns to its
nominal value.
Check the grid frequency
The installer/service technician
should be informed if this
problem arises on a regular
basis
204
Grid frequency too low
The inverter switches over to
normal power/feed mode as soon
as the grid frequency returns to its
nominal value
Check the grid frequency
The service technician should
be informed if this problem
arises on a regular basis
205
Extreme grid over-voltage
The inverter switches over to
normal power/feed mode as soon
as the power grid voltage returns
to its nominal value
Check the grid voltage
The installer/service technician
should be informed if this
problem arises on a regular
basis
206
Grid over-voltage
The inverter switches over to
normal power/feed mode as soon
as the grid voltage returns to its
nominal value
Check the grid voltage
The installer/service technician
should be informed if this
problem arises on a regular
basis
207
Grid under -voltage
The inverter switches over to
normal power/feed mode as soon
as the grid voltage returns to its
nominal value
Check the grid voltage
The installer/service technician
should be informed if this
problem arises on a regular
basis
208
Extreme grid under-voltage
The inverter switches over to
normal power/feed mode as soon
as the grid voltage returns to its
nominal value
Check the grid voltage
The installer/service technician
should be informed if this
problem arises on a regular
basis