Sungrow UMCG, Руководство пользователя

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4
CAT-5e or aboove cable is recommended.
W Wiirriin ng g M Me etth ho od d
Use CAT-5e or aboove cable with one end connected to external device and the other
end connected to the UMCG's“NET2”port.
3.2 RS485 Port Wiring
IIn nttrro od du uc cttiio on n
The UMCG supports 8-way RS485 terminal connection to equipment such as box
transformer measurement and control equipment, electricity meter, PV combiner box
and environmental monitor.
P Po orrtt m ma arrkk F Fu un nc cttiio on n
An RS485A, RS485 differential
Bn RS485B, RS485 differential signal-
* n=1~3 or 5~9。
C Ca ab blle e R Re eq qu uiirre em me en nttss
•
0.75mm 2 ~1.5mm 2 twisted pair shielded wire is recommended for connection.
•
The RS485 communication distance is less than 1200m.
•
A single RS485 communication port can support the access of 32 devices.
•
A single RS485 communication port does not allow different types of equipment to
be connected.
W Wiirriin ng g M Me etth ho od d
step 1 Lead the RS485 cable outgoing from external equipment to the wiring area of the
UMCG.
step 2 Use wire strippers to strip the protective layer and shielded layer of the cable to expose
the copper core of the wire.
step 3 Connect the cable of which the insulation layer has been stripped to the either the
UMCG's“A1B1~A3B3”or“A5B5~A9B9”port as shown in the following figure.
3 Introduction to Ports User Manual