SolarEdge Solar Inverter Installation Manual page 55

Appendix A: Errors and Troubleshooting
Error # Error #
Single Three
Phase Phase
10, 37, 76, 77, 90
38
14 58/59/60
SolarEdge Installation Guide – MAN-01-00057-2.2
LCD Message Description
Ground Current - Ground current surge.
RCD The internal hardware
that measures ground
fault has measured
substantially high
ground currents.
AC Voltage Too AC voltage surge. The
High internal hardware that
measures AC voltage
(Line 1/2/3)
has measured
substantially high
sudden output voltage.
Troubleshooting
Ground faults may occur due to insufficient
insulation to the ground.
WARNING!
ELECTRICAL SHOCK HAZARD.
Do not touch uninsulated wires when the
inverter cover is removed.
Extreme care must be taken when
troubleshooting this error.
Only a qualified technician should handle
this problem, and only after taking proper
precautions.
1
Turn the inverter ON/OFF switch to
OFF.
2
Wait five minutes for the input
capacitors to discharge.
3
Disconnect the AC breaker.
4
Disconnect the DC inputs.
5
Connect each DC string separately,
turn the AC and the inverter ON/OFF
switch to ON, until the error appears
for the faulty string.

Do not connect strings with a grounding
fault to the inverter.

For further documentation about
possible ground current error sources
and solutions contact SolarEdge
support.

A certified installer must fix the faulty
string before connecting it to the
inverter.
If the fault persists:

Check the AC connection to inverter.

Verify that the inverter is set to the
correct country.

Check with the grid operator if a large
surge source or irregular load exists
near the site.

Verify that the output wire size matches
the distance between the inverter and
the location of the grid connection.

Use a larger gauge wire for the AC
output.

Refer to the AC Wiring Application
Note, available on the SolarEdge
website at
http://www.solaredge.com/files/pdfs/app
lication-note-recommended-wiring.pdf
53