Huawei SUN2000 Series User Manual page 35

SUN2000-(12KTL-25KTL)-M5 Series
User Manual
ground the inverter according to the connection requirements of the PE 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 then
disable Grounding abnormal shutdown so that the inverter can run properly.
●
●
Procedure
Step 1 Crimp an OT terminal.
● Avoid scratching the core wire when stripping a cable.
● The cavity formed after the conductor crimp strip of the OT terminal is crimped
● Wrap the wire crimping area with heat-shrink tubing or insulation tape. The
● Use a heat gun carefully to avoid heat damage to the equipment.
Issue 01 (2022-06-15)
According to IEC 62109, to ensure the safe operation of the inverter in the
case of PE cable damage or disconnection, properly connect the PE 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 of the AC connector is not connected, the PE cable on
the enclosure must be a single-core outdoor copper cable with a cross-
sectional area of at least 10 mm
– 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 enclosure.
In some countries and regions, the inverter must have additional ground
cables. In this case, 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 enclosure.
NO TICE
must wrap the core wires completely. The core wires must contact the OT
terminal closely.
heat-shrink tubing is used as an example.
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