Profibus Communication Cable - Mitsubishi Electric FR-A5NPA Instruction Manual

Profibus/dp communication option
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2.3.1 Profibus Communication Cable

Make a network communication cable using a Dsub9 pin male connector
and a cable supporting 12Mbps communication.
(1) Pin arrangement of a connector
Dsub9 pin type male
connector pin number
1
2
3
4
5
6
7
8
9
*1 It may not be necessary depending on the master module used.
*2 This signal is used to make the terminating resistor present.
(2) Terminating resistor
If the nodes at both ends of the network are the FR-A5NPA and
inverter, connect a connector with a built-in terminating resistor.
R1
R2
R3
1 2 3 4 5
6 7 8 9
1 2 3 4 5
6 7 8 9
Signal
SHIELD
Shield
N/C
Unconnected
RxD/TxD+
Receive/transmit + data
Control signal (transmission request
RTS *1
from the inverter)
DGND *2
Data earth
+5VDC *2
Voltage output
N/C
Unconnected
RxD/TxD-
Receive/transmit - data
N/C
Unconnected
R1=390Ω±2% 1/4W
R2=220Ω±2% 1/4W
R3=390Ω±2% 1/4W
7
INSTALLATION
Application

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