6
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 the ground 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 ground cable.
Opening the Maintenance Compartment Door
4.3
• Never open the host panel of the SUN2000.
• Before opening the maintenance compartment door, turn off the downstream AC output switch
and the two DC switches at the bottom.
• Do not open the maintenance compartment door in rainy or snowy days. If unavoidable, take
protective measures to prevent rain or snow from entering the maintenance compartment.
• Do not leave unused screws in the maintenance compartment.
2. Open the maintenance compartment door and
install the support bar.
1. Loosen the two screws on the maintenance
compartment door using a security torx
wrench.
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