No. Grid
LED
LED
Display
Status description
Action
Pers
.
7
Self test in progress
During the self-test, the following sequence is
run through: 1. S7 (start-up) 2. S75 (load DC
link) 3. S8 (relay and buffer test) Inverter ob-
jective is to switch to S4
The progress of the
self-test procedure
can be followed on
the display.
a) if the self-test re-
peats itself without
switching to status
4, this suggests that
there is a system er-
ror.
b) if a message per-
sists even after a re-
start, this suggests
that there is a
device error.
c) if an error mes-
sage appears after
the self-test has
been completed,
look at the checklist
to see what the er-
ror is.
B
8
Self test in progress
Self test of relays, testing of line relays prior to
beginning grid feed
-
-
10
Temperature in unit too high If the device overheats due to a lack of air cir-
culation, the device switches off. Cause: ambi-
ent temperature too high, device error.
Possible causes: am-
bient temperature
too high, fan
covered, device
fault.
B E
17
"Powador-protect discon-
nection" or "External grid
protection shutdown"
The activated grid and system protection has
been tripped.
If the Powador-pro-
tect is not required,
please check in the
menu to see if "Ac-
tivate Powador-pro-
tect" is set to "OFF".
E
18
Resid. current shutdown
AFI shutdown as a result of a sudden residual
current in the system
Check PE cabling;
the cause is gener-
ally faulty cabling to
earth. Often occurs
during rainfall in the
case of faulty
cabling. Measure
the insulation resist-
ance of the system.
E
19
Generator insulation fault
There is an insulation fault on the PV gener-
ator. The feed-in was interrupted.
There is an insula-
tion fault on the PV
generator. The
feed-in was inter-
rupted.
E
20
Active ramp limitation
Internal ramp limiting, e.g.: "Ramp Up" 10 %/
Min • After an overvoltage has been detected,
for example, the device limits its output and
slowly ramps up again (RampUp).
The "Feed-in" LED
flashes for the dura-
tion of the device
start-up.
-
Manual
Maintenance and troubleshooting | 11
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