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(In the field, the first step is to scan for potential fault causes that could be picked up by
the solar inverter and result in tripping.)
Various key parameters can be scanned via the display, thereby enabling conclusions
to be drawn about potential fault causes.
Current values in the N menu
AC Voltage ->
Display of current output voltage -> Voltage limiting values
AC Frequency -> Display of current grid frequency -> Frequency limiting values
Solar Voltage -> Display of current PV cell voltage -> Switch-in threshold
9.2
Display messages
DISPLAY
LED STATuS
MESSAGE
green: <on>
red: <on>
yellow: <on>
green: <off>
AC frequency
red: <off>
failure
yellow: <on>
green: <off>
AC voltage
red: <off>
failure
yellow: <on>
green: <off>
AC relay
red: <off>
failure
yellow: <on>
green: <flashes>
Calibration
red: <off>
ongoing
yellow: <off>
green: <off>
DC injection
red: <off>
failure
yellow: <on>
green: <off>
red: <off>
Error # 301
yellow: <on>
green: <off>
red: <off>
Error # 302
yellow: <on>
green: <off>
Error # 506
red: <on>
Error # 508
yellow: <off>
Isolation
green: <on>
start-up
red: <on>
warning
yellow: <off>
Isolation run-
ning warning
32
CAuSE
Display communication
faulty.
Grid frequency overshoo-
ting or undershooting
specified limit range.
Grid voltage overshooting
or undershooting specified
limit range.
One of the anti-islanding
protection output relays is
faulty / defective.
Check internal settings.
DC component of input-
side alternating current is
too high.
Internal communication
error or hardware fault.
The device trips and
reverts to grid input mode
once the temperature has
dropped.
Isolation resistance fault
on the DC side during
start-up phase (# 508) or
running phase (# 506).
Isolation resistance fault
on the DC side during
start-up phase or running
phase.
Operation and installation manual SOLIVIA 2.5 AP G3 TR
ELIMInATIOn
If the fault persists after the device
has been reset, please inform your
service technician.
Check the grid frequency via the
display in the N menu.
Check the grid voltage via the
display in the N menu.
If no voltage present, check grid
automatic circuit breaker.
The solar inverter is defective.
Return the device.
Normal function before input mode.
If the fault persists after the device
has been reset, please inform your
service technician.
If the fault persists after the device
has been reset, please inform your
service technician.
Check the installation site (no
direct sunlight, air circulation).
Check the isolation resistance on
the DC side of the PV modules.
You must check the isolation
resistance on the DC side of the
PV modules. Solar inverter is still
feeding!
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