KACO Powador 10.0 - 20.0 TL3 - Manual (Page 48)

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Maintenance/Troubleshooting
Page 48 Operating Instructions Powador 12.0 TL3-20.0 TL3
9.5 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
defined in standards, e.g. VDE0126-1-1. The inverter shuts down if the values exceed or fall below the approved levels.
9.5.1 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-specific 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 RS485 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
generator voltage are being checked.
- -
OS 2 Generator voltage
too low
Insufficient 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 off. Possible causes:
• Ambient temperature too high.
• Fans covered.
• Inverter defective.
" Cool off the area
around the inverter.
" Uncover the fans.
" Notify your
authorised
electrician.
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 capacity
is too large).
Table 3: Operating status and fault messages on the display