8
•
Before installing DC input power cables, label the cable polarities to ensure correct cable
connections.
•
If a DC input power cable is reversely connected and the DC switch is turned on, do not
operate on the DC switch or the positive/negative connectors immediately. Otherwise, the
device may be damaged. The caused device damage is not covered under any warranty. Wait
until the night when solar irradiance declines and the PV string current drops to below 0.5 A.
Then set the DC switch to the OFF position, remove the positive and negative connectors, and
correct the polarity of the DC input power cable.
1. Connect the DC power cables.
Positive connector
Negative
connector
Positive metal terminal
Negative metal terminal
Ensure that the cable
cannot be pulled out
after being crimped.
Click
Click
Ensure that the
cables are correctly
connected.
Use the wrench shown
in the figure to tighten
the locking nut. When
the wrench slips
during the
tightening,
the locking
nut has been
tightened.
(Optional) Installing the Smart Dongle
4.5
Smart Dongle port (4G/WLAN-FE)
•
The Smart Dongle is not provided in
standard configuration.
•
For details about how to install the
Smart Dongle, see the Smart Dongle
quick guide of the corresponding model.
The quick guide is delivered with the
Smart Dongle.
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