Delta SOLIVIA 5.0 Installation Manual download pdf (Page 32)

32 Operation and installation manual SOLIVIA 5.0 AP G3 TR

9. Diagnostics and data evaluation

9.1 Malfunctionrectication

The solar inverter is provided with an automatic diagnostics system which indepen-

dently identies certain faults and which can make them visible on the display.

Troubleshooting in the eld

In principle, it is always worth attempting a reset by reinitializing the solar inverter when-

ever 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 eld, the rst 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

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

specied 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 specied

limit range.

Check the grid voltage via the

display in the N menu.

If no voltage present, check grid

automatic circuit breaker.

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Delta SOLIVIA 5.0 Installation Manual Page 32

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