Delta SOLIVIA 5.0 AP G3, Operation And Installation Manual

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26 Operation and installation manual SOLIVIA 5.0 AP G3
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 -> Voltage limiting values
AC Frequency -> Display of current grid frequency -> Frequency limiting values
Solar Voltage -> Display of current PV cell voltage -> Switch-in threshold
8.2 Display messages
LED STATUS
DISPLAY
MESSAGE
CAUSE ELIMINATION
green: <on>
red: <on>
yellow: <on>
-
Display communication
faulty.
- If the fault persists after the device has
been reset, please inform your service
technician.
green: <off>
red: <off>
yellow: <on>
AC frequency
failure
Grid frequency overshoo-
ting or undershooting
specified limit range.
- Check the grid frequency via the
display in the N menu.
green: <off>
red: <off>
yellow: <on>
AC voltage
failure
Grid voltage overshooting
or undershooting specified
limit range.
- Check the grid voltage via the display in
the N menu.
- If no voltage present, check grid auto-
matic circuit breaker.
green: <off>
red: <off>
yellow: <on>
AC relay
failure
One of the anti-islanding
protection output relays is
faulty / defective.
- The solar inverter is defective.
- Return the device.
green: <flashes>
red: <off>
yellow: <off>
Calibration
ongoing
Check internal settings. Normal function before input mode.
green: <off>
red: <off>
yellow: <on>
DC injection
failure
DC component of input-
side alternating current is
too high.
- If the fault persists after the device has
been reset, please inform your service
technician.
green: <off>
red: <off>
yellow: <on>
Error # 301
Internal communication
error or hardware fault.
- If the fault persists after the device has
been reset, please inform your service
technician.