Maintenance/Troubleshooting
Page Operating Instructions for Powador -_EN
Authorised electrician
. Messages on the display and the "Fault" LED
Many fault signals indicate a fault in the grid. They are not operational faults of the inverter. The triggering levels are
de ned in standards, e.g. VDE--. The inverter shuts down if the values exceed or fall below the approved levels.
.. Display of status and fault messages
Display Fault LED (red)
FS (fault status)
!
ON
• Fault signal relay has switched.
• Feed-in was ended due to a fault.
OS (operating status)
!
OFF
• The fault signal relay releases again.
• The inverter feeds back into the grid again after a
country-speci c time period.
Details regarding the fault or operating status can be found either on the display or in the data that was recorded
through the RS interface.
.. Status and fault signals
The following table lists the possible status and fault signals that the inverter shows on the LCD and the LEDs. For
the status, consult the data that is logged via the RS interface.
BS = operating status, FS = fault status;
B = Action of the operator
E = The indicated work may only be carried out by an authorised electrician.
K = The indicated work may only be carried out by a service employee of KACO new energy GmbH.
Status Display
!
Explanation Action By
OS 1 Start from ### V
Measurem. ### V
Self-test: The grid parameters and gen-
erator voltage are being checked.
--
OS 2 Voltage too low!
Generator voltage and power are too
low; situation before transition into
night shutdown
--
OS 8 Self-test
Checks the shutdown of the power
electronics as well as the grid relay
before feed-in mode
--
FS 10 Temperature in
unit too high
In case of overheating, the inverter
switches o . Possible causes:
• ambient temperature too high,
fan covered,
inverter defective.
Clean the fans.
Notify your
authorised elec-
trician.
B
B
E
FS 18 Resid. current
shutdown
Residual current was detected. The
feed-in was interrupted.
Notify your
authorised elec-
trician.
E
FS 19 Generator
insulation fault
There is an insulation fault on the PV
generator. The feed-in was interrupted.
Notify your
authorised elec-
trician if the fault
occurs several
times.
E
Table 7: Operating statuses and fault messages on the display
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