Goodrive270 series VFD for fan and pump Expansion card
-296-
A.5 Communication cards
A.5.1 PROFIBUS-DP communication card (EC-TX503)
CN1 is a 9-pin D-type connector, as shown in the following figure.
Connector pin Description
1 - Unused
2 - Unused
3 B-Line Data+ (twisted pair 1)
4 RTS Request sending
5 GND_BUS Isolation ground
6 +5V BUS Isolated power supply of 5 V DC
7 - Unused
8 A-Line Data- (twisted pair 2)
9 - Unused
Housing SHLD PROFIBUS cable shielding line
+5V and GND_BUS are bus terminators. Some devices, such as the optical transceiver (RS485),
may need to obtain power through these pins.
Some devices use RTS to determine the sending and receiving directions. In normal applications,
only A-Line, B-Line, and the shield layer need to be used.
Indicator definition:
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