Sungrow UMCG, Руководство пользователя

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step 3 Connect cables outing from NO, NC and COMs to the corresponding ports of the UMCG.
-- -- E En nd d
3.5 PT100 Port Wiring
IIn nttrro od du uc cttiio on n
The UMCG has two PT100 sampling ports, which are used for transformer oil
temperature sampling and copper busbar temperature sampling respectively.
W Wiirriin ng g R Re eq qu uiirre em me en nttss
Recommended cable specifications:0.75mm
2
~1.5mm
2
.
W Wiirriin ng g M Me etth ho od d
step 1 Lead the sampling signal line to the wiring area of the UMCG.
step 2 When connecting a two-wire cable, connect the PT + cable to the "PT +" port; connect
the PT- cable to the "PT-" port. (N
No otte e: "PT-" port and "GND" port are short-circuited)
When connecting a three-wire cable, PT + cable connects to "PT +" port; PT- cable
connects to "PT-" port; ground cable Connect to the "GND" port.
User Manual 3 Introduction to Ports