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Delta RPI H3A

Delta RPI H3A
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Terminal resistor switch
圖5-5 : 通訊模組
表5-5 : RS-485腳位定義
5.4.1 RS-485 通訊連接
RS-485的pin腳定義如表 5-5所列,通訊協定設定則列於表5-6,安裝單一台逆變器時
終端電阻應該設成ON, 安裝多台逆變器串聯時需將第一台和最後一台終端電阻設為ON,
其餘的終端電阻則設成OFF, 串聯配線圖如圖5-6
PIN
FUNCTION
1
VCC
2
GND
3
4
5
6
DATA+
DATA
-
DATA+
DATA
-
129
配 線

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