.41.
.40.
7. Operation
7.6 Arc fault (AFCI version)
Solis inverters have the built-in AFCI function which can detect the arc fault on the DC circuit
and shut down the inverter to prevent a fire disaster.
7.6.1 Enable the AFCI function
7.6.2 Arc Fault
During the normal operation, if an DC arc is detected, the inverter will shut down
and give out the following alarm:
Figure 7.27 Arc Fault
ARC-FAULT
Restart Press ESC 3s
Installer needs to thoroughly inspect the DC circuit to ensure all the cables are
correctly fastened.
Once the DC circuit issue has been fixed or it is confirmed to be OK, press “ESC” for
3s and wait for the inverter to restart.
The AFCI function can be enabled in the following.
Path: Advanced Setting -> Password: 0010 ->Special Settings -> AFCI Set ->
AFCI ON/OFF -> ON
Figure 7.26 Set AFCI
NOTE:
The setting corresponds to the current status as well which can be used to
inspect the ON/OFF state of the AFCI function.
AFCI ON/OFF
AFCI Level
ON
OFF
Warning:
The "AFCI Level" is reserved for Solis technicians ONLY. Do not change the
sensitivity otherwise it will lead to frequent false alarms or malfunctions.
Solis is not responsible for any further damages caused by unauthorized
modifications.
The fan and filter should be regularly cleaned so as to improve the heat dissipation efficiency.
Clean with a soft brush.
8.1 Fan Maintenance
If the fan does not work properly, the inverter will not be cooled effectively and it may affect
the effective operation of the inverter.
Therefore, it is necessary to clean or replace a broken fan as follows:
1. Disconnect the AC power.
2. Turn the DC switch to "OFF" position.
3. Wait for 10 minutes at least.
The other parts of Solis Inverter does not require any regular maintenance.
However, cleaning the dust on heat-sink will help the inverter to dissipate the heat and
increase its life time. The dust can be removed with a soft brush.
CAUTION:
Do not touch the inverter's surface when it is operating. Some parts of the inverter
may be hot and cause burns. Turn off the inverter (refer to Section 5.2) and wait for
a cool-down period before any maintenance or cleaning operation.
The LCD and the LED status indicator lights can be cleaned with a damp cloth if they are too
dirty to be read.
NOTE:
Never use any solvents, abrasives or corrosive materials to clean the inverter.
8. Maintenance
