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6
2. Open the maintenance compartment door
and install the support bar.
Installing the Ground Cable
4.2
•
The ground point on the enclosure is preferred to connect to the PE cable for the SUN2000.
•
The ground point in the maintenance compartment is mainly used for connecting to the
ground cable included in the multi-core AC power cable. For details, see section " 4.4
Installing AC Output Power Cables."
•
The ground cable must be secured.
•
It is recommended that PGND cable of the SUN2000 be connected to the nearest ground
point. For a system with multiple SUN2000s connected in parallel, connect the ground points
of all SUN2000s to ensure equipotential connections to ground cables.
•
To enhance the corrosion resistance of the PE terminal, apply silica gel or paint on it after
connecting the PGND cable.
Opening the Maintenance Compartment Door
4.3
1. Never open the host panel of the SUN2000.
2. Before opening the maintenance compartment door, turn off the downstream AC output
switch and the two DC switches at the bottom.
3. If you need to open the maintenance compartment door on rainy or snowy days, take
protective measures to prevent rain and snow entering the maintenance compartment. If it is
impossible to take protective measures, do not open the maintenance compartment door on
rainy or snowy days.
4. Do not leave unused screws in the maintenance compartment.
1. Loosen the two screws on the maintenance
compartment door using a security torx
wrench.
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