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Delta RPI H3A

Delta RPI H3A
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Terminal resistor switch
图5-5 : 通讯模块
表5-5 : RS-485脚位定义
5.4.1 RS-485 通讯连接
RS-485的pin脚定义如表 5-5所列,通讯协议设定则列于表5-6,安装单一台逆变器时
终端电阻应该设成ON, 安装多台逆变器串联时需将第一台和最后一台终端电阻设为ON,
其余的终端电阻则设成OFF, 串联配线图如图5-6
PIN
FUNCTION
1
VCC
2
GND
3
4
5
6
DATA+
DATA
-
DATA+
DATA
-
75
配 线

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