Photovoltaic Direct-driven Inverter VRF
37
(1)Select communication wire between IDU and wired controller
Material type
Total length of
communication line
between IDU unit and
wired controller L m(ft.)
Wire size
Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
L
≤
250(820-1/5)
2×AWG18~
2×AWG16
1. Total length of communication line can't exceed
250m(820-1/5ft.).
2. The cord shall be Circular cord (the cores shall
be twisted together).
3. If unit is installed in places with intense magnetic
field or strong interference, it is necessary to use
shielded wire.
Graphic of connection between IDU and wired controller
Fig.4.6.1
(2)Select communication wire between ODU and IDU
Material Type
Total Length L(m) of
Communication Cable
between IDU Unit and
IDU (ODU ) Unit m(ft.)
Wire size
Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
L
≤
1000(3280-5/6)
≥
2×AWG18
1. If the wire diameter is enlarged to 2×AWG16,
the total communication length can reach
1500m(4921-1/4ft.).
2. The cord shall be Circular cord (the cores shall
be twisted together).
3. If unit is installed in places with intense
magnetic field or strong interference, it is
necessary to use shielded wire.
Fig.4.6.2
NOTICE!
All of the selected communication wire must be consistent with local laws and
regulations.
Содержание GMV-Y120WM/C-F
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