Rs485 Communication - Huawei SUN2000-90KTL Series User Manual

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
No. Cable
● Note [1]: When the MBUS is used for communication, it is recommended that the multi-wire
cable be used. The maximum communication distance is 1000 m. If other types of AC power
cables are used, contact Huawei technical support.
● Note [2]: Do not connect aluminum or aluminum alloy DC power cables directly to the DC
terminals of the inverter.
● Note [3]: The 1500 V PV cables must comply with IEC 62930 or EN 50618.
Table 5-3 PE cable specifications
Conductor Cross-Sectional Area S of the AC
2
Power Cable (mm
16 < S ≤ 35
35 < S
● The specifications are valid only if the conductors of the PE cable and AC power cable use the
same material. If the materials are different, ensure that the conductor cross-sectional area of
the PE cable produces a conductance equivalent to that of the cable specified in the table.
● The specifications of the PE cable are subject to this table or calculated according to IEC
60364-5-54.

5.2.2 RS485 Communication

If RS485 is selected, connect an RS485 communications cable to the SUN2000, but
the AC power cable does not need to connect to a SmartLogger that supports
MBUS.
Issue 16 (2023-12-20)
Type
)
Copyright © Huawei Technologies Co., Ltd.
Conductor
Cross-
Sectional
Area Range
Conductor Cross-Sectional Area S
2
Cable (mm )
S ≥ 16
P
S ≥ S/2
P
5 Electrical Connections
Outer Source
Diameter
of the PE
P
49