Sungrow UMCG, User Manual

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5
*for illustration only.
-- -- E En nd d
3.3 DI Input Dry Contact Wiring
IIn nttrro od du uc cttiio on n
The UMCG supports 21-way input dry contact connection to the transformer or
switchgear signal node.
P Po orrtt F Fu un nc cttiio on n
DI1~DI21 Input dry contact terminals 1~21
DI24V Total 11 input dry contact 24V terminal
W Wiirriin ng g R Re eq qu uiirre em me en nttss
0.75mm
2
~1.5mm
2
wire is recommended.
W Wiirriin ng g M Me etth ho od d
step 1 Connect the DI input dry contact cable and 24V cable outgoing from the transformer to
the wiring area of the UMCG.
step 2 Use a wire stripper to strip the protective layer and shielded layer of the cable to expose
the copper core of the wire.
step 3 Connect the DI cable to either the UMCG's“DI1~DI21”port: Connect 24V cable
to“DI24V”port.
User Manual 3 Introduction to Ports