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Chapter 2 Installation and Connection of the System
GIE 4820/3A/3.45KW Power Supply System User Manual
Fixing board
Fig.2-3 Illustration of Fixing Board
2.5.2 System Communication Signal Connections
The interfaces of power supply system communication signal are all located on the
monitoring panel of the system, the positions of signal interfaces are shown in Fig.
2-4.
PSM-B9
COM
MS
Communication Port COM
Communication Port MS
Communication Port DB37
ALM RUN
Fig.2-4 Communication Signal Interface
Functions of connection terminal:
1. Communication port (COM)
Connection may be according to RS232 or RS422 mode.
RS422 mode: use pin1
—
TX+, 2
—
TX-, 4
—
RX+, 5
—
RX-.
RS232 mode: use pin 3
—
RX, 7
—
TX, 6
—
GND.
2. Communication port (MS): connection according to RS232 mode.
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