Danfoss FLX 17 Pro Installation Manual page 34

Service
ID Status Description
message
34–37 Residual Current Monitoring Unit
(RCMU) has measured an
excessive current.
40 AC grid not The AC grid has been out of
OK range for more than 10 minutes
(frequency and/or voltage).
41–43 The inverter has detected that
grid voltage was below a certain
level.
47 PLA below The inverter disconnects from
threshold grid if PLA is below 3% of
nominal power.
48–53 Grid
frequency
too low or
too high
54–56 DC grid current too high (stage
2).
246 A grid event was detected and
inverter was stopped by the
redundant safety circuit.
Table 4.2 Grid-related Events
PV-related Events
ID Status Description
message
100-102 PV negative Input current is negative, polarity
incorrect.
103-105 PV current is Too many PV modules connected in
too high/ parallel. Should only appear on newly
waiting. installed systems.
112-114 PV config fault
115 PV ISO too low 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.
116-118 PV wrong polarity
121-123, PV ISO low PV1, PV2, PV3, multiple
125 (related to 115)
258 PV voltage too PV voltage is too high.
high/waiting
Table 4.3 PV-related Events
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.
L00410568-02_02 / Rev. date: 2013-12-10
DNO Hotline PV
- x -
x - -
4
x - -
x - -
x - -
- x -
DNO Hotline PV
- - x
- x x
- - x
- x x
- x x
- x x
- x x
31
4