Maintenance/Troubleshooting
Page Operating Instructions for Powador .-. TL_EN
ENEN
. "Fault" messages on the display/LED
Many fault signals indicate a fault in the grid. They are not operational faults of the inverter. The triggering levels are
dened 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-specic 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.
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
OS 1 Waiting for feed-in Self-test: The grid parameters and gen-
erator voltage are being checked.
--
OS 2 Generator voltage
too low
Insucient generator voltage and
power,
status before the transition to 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:
• Excessively high ambient tempera-
ture,
• Fan covered,
• Inverter defective.
" Cool o the
area around the
inverter.
" Uncover the fans.
" Notify your
authorised electri-
cian.
B
B
E
OS 11 Measured values Power limitation: If the generator power is too high, the inverter limits
itself to the maximum power (e.g. around noon if the generator capac-
ity is too large).
FS 17 Shutting down
Powador-protect
The activated grid and system protec-
tion has been tripped.
" Wait for reactiva-
tion.
" Notify your
authorised elec-
trician if the fault
occurs several
times.
E
Table 7: Operating status and fault messages on the display
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