Diagnostics And Data Evaluation; Malfunction Rectification; Display Messages - Delta SOLIVIA 5.0 Operation And Installation Manual

8

Diagnostics and data evaluation

8.1

Malfunction rectification

The solar inverter is provided with an automatic diagnostics system which independently identifies
certain faults and which can make them visible on the display.
Troubleshooting in the field
In principle, it is always worth attempting a reset by reinitializing the solar inverter whenever an error
message appears on the display.
To reset the device, proceed as follows:
1. Isolate the solar inverter from the grid (open automatic circuit breaker).
2. Switch off the DC disconnector.
3. Wait: approx. 1 minute.
4. Switch DC disconnector back on.
5. Switch in grid (close automatic circuit breaker).
(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 ->
AC Frequency -> Display of current grid frequency ->
Solar Voltage -> Display of current PV cell voltage -> Switch-in threshold
8.2

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>
Autotest failed
red: <off>
(only for Italy)
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>
Operation and installation manual SOLIVIA 5.0 EU G3
CAUSE
Display communication
faulty.
Grid frequency overshoo-
ting or undershooting
specified limit range.
Grid voltage overshooting
or undershooting specified
limit range.
The autotest status is in
error.
Check internal settings.
DC component of input-
side alternating current is
too high.
Internal communication
error or hardware fault.
Voltage limiting values
Frequency limiting values
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 auto-
matic circuit breaker.
Repeat the autotest routine.
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.
29