SMA Solar Technology FLX Pro 17 Guide D'installation page 35

Service
ID Status
message
34–37
40 AC grid not
OK
41–43
4 4
47 PLA below
threshold
48–53 Grid
frequency
too low or
too high
54–56
246
Table 4.2 Grid-related Events
PV-related Events
ID Status
message
100-102 PV negative
103-105 PV current is
too high/
waiting.
112-114
115 PV ISO too low
116-118
121-123,
125
258 PV voltage too
high/waiting
Table 4.3 PV-related Events
34
Description
Residual Current Monitoring Unit
(RCMU) has measured an
excessive current.
The AC grid has been out of
range for more than 10 minutes
(frequency and/or voltage).
The inverter has detected that
grid voltage was below a certain
level.
The inverter disconnects from
grid if PLA is below 3% of
nominal power.
DC grid current too high (stage
2).
A grid event was detected and
inverter was stopped by the
redundant safety circuit.
Description
Input current is negative, polarity
incorrect.
Too many PV modules connected in
parallel. Should only appear on newly
installed systems.
PV config fault
The resistance between ground and
PV is too low for the inverter to start
up. This will force the inverter to make
a new measurement after 10 minutes
have passed.
PV wrong polarity
PV ISO low PV1, PV2, PV3, multiple
(related to 115)
PV voltage is too high.
L00410568-03_2q / Rev. date: 2014-06-20
Action
Turn both DC and AC off and wait until the display turns
off. Then turn on DC and AC and observe if the event
reoccurs. If the event reoccurs, call the installer.
Installer: Visual inspection of all PV cables and modules.
Call the installer and inform about Frequency, SW version
and Grid code setting
Installer: Check the AC installation.
If this event is reported several times each day, contact the
installer.
Installer: Perform on-site grid analysis.
Contact the DNO and obtain status on active power
reduction (PLA).
Call the installer and inform about the grid frequency.
Check the AC installation.
For occurrence several times daily, contact installer.
Installer: Perform on-site grid analysis.
A grid event was detected and inverter was stopped by the
redundant safety circuit. Check the event log. If the majority
of entries are of type 246, call the service department.
Otherwise wait 24 hours and check again.
Action
Call the installer.
Installer: Check polarity, if correct, call service.
Call the installer.
Installer: Check no. of strings in parallel and
current ratings. Has the current limit been
exceeded? Has the inverter derated on PV
current? Reconnect strings in parallel, possibly
install a second inverter.
Call the installer.
Installer: Call service.
Make a visual inspection of all PV cables and
modules for correct installation according to
the installation guide. The event could indicate
that the PE connection is missing.
Call the installer.
Installer: Call service.
Call the installer.
Installer: Call service.
Check that installation and layout correspond
to recommendations in the manuals.
DNO Hotline PV
- x -
x - -
x - -
x - -
x - -
- x -
DNO Hotline PV
- - x
- x x
- - x
- x x
- x x
- x x
- x x