Rs485 Communication - Huawei SUN2000-90KTL Series User Manual

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
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.
Figure 5-3 Network Application
(A) PV string
(D) Step-up transformer
(G) Management system
Issue 11 (2020-08-30)
)
NO TE
indicates a power cable;
Copyright © Huawei Technologies Co., Ltd.
Conductor Cross-Sectional Area S
2
Cable (mm )
S ≥ 16
P
S ≥ S/2
P
indicates the power flow direction;
(B) SUN2000
(E) Power grid
-
5 Electrical Connections
of the PE
P
indicates a signal cable.
(C) AC combiner box
(F) SmartLogger
-
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