Maintenance/Troubleshooting
Page Operating Instructions Powador . TL, . TL, . TL_EN
. 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 minimum triggering
levels are determined by standards (e.g. VDE --). The inverter must switch o if the permitted values are
undershot or exceeded.
.. 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 deenergizes again.
• The inverter feeds back into the grid again
after a country-speci c time period.
On the display you can nd details regarding the fault or operating status or 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.
Status Display Explanation Action By
OS 1 Waiting for feed-in Self test: Grid parameters and genera-
tor voltage are being checked.
--
OS 2 Generator voltage
too low
Generator voltage and power are too
low; situation before transition into
night shutdown
--
OS 7Self-test Checks the shutdown of the power
electronics as well as the line relay
before feed-in mode. The self-test
consists of three successive individual
tests with the status 7, 75 and 8.
--
OS 75 Self-test
OS 8Self-test
FS 10 Temperature in
unit too high
In case of overheating, the inverter
switches o . Possible causes:
• Ambient temperature too high
• Fans covered
• Inverter defect
Cool o the vicinity
of the inverter.
Uncover the fans.
Notify your autho-
rised electrician.
B
B
E
Table 6: Operating states and fault messages on the display
OS = operating status, FS = fault status;
B = Action of the operator
E = The indicated work must only be carried out by an authorised electrician.
K = The indicated work must only be carried out by a service employee of KACO new energy GmbH.
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