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SUN600-(5KTL, 6KTL)-L0
User Manual
5.3 Connecting PE Cables
Precautions
● Ensure that the PE cable is securely connected. Otherwise, electric shocks may
● Do not connect the neutral wire to the enclosure as a PE cable. Otherwise,
Additional Information
The inverter provides the grounding detection function. This function is used to
check whether the inverter is properly grounded before the inverter starts, or
check whether the ground cable is disconnected when the inverter is running. This
function is only available under limited conditions. To ensure the safe operation of
the inverter, properly ground the inverter according to the connection
requirements of the ground cable. For some power grid types, if the output side of
the inverter is connected to an isolation transformer, ensure that the inverter is
properly grounded and set Grounding inspection to Disable to enable the
inverter to run properly. If you are not sure whether the inverter is connected to
such a type of power grid, contact your dealer.
●
●
Issue 04 (2023-02-17)
NO TE
● The minimum cable diameter must comply with local cable standards.
● The factors that affect cable selection include the rated current, cable type, routing
mode, ambient temperature, and maximum expected line loss.
D ANGER
occur.
electric shocks may occur.
NO TE
● The PE point at the AC output port is used only as a PE equipotential point, and cannot
substitute for the PE point on the enclosure.
● It is recommended that silica gel or paint be used around the ground terminal after the
PE cable is connected.
According to IEC 62109, to ensure the safe operation of the inverter in the
case of ground cable damage or disconnection, properly connect the ground
cable of the inverter and ensure that it meets at least one of the following
requirements before the grounding detection function becomes invalid:
–
If the PE terminal is not connected to the AC connector, use a single-core
outdoor copper cable with a conductor cross-sectional area of at least 10
2
mm
as the PE cable on the chassis.
–
Use cables with the same diameter as the AC output power cable and
ground the PE terminal on the AC connector and the ground screws on
the chassis.
In some countries and regions, the inverter must have additional ground
cables. Use cables with the same diameter as the AC output power cable and
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5 Electrical Connection
40
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