INSTALLATION
7
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
*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.
Dsub9 pin type male
connector pin number
Signal
Application
1
SHIELD
Shield
2
N/C
Unconnected
3
RxD/TxD+
Receive/tr data
4
RTS *1
Control signal (transmission request
from the inverter)
5
DGND *2
Data earth
6
+5VDC *2
Voltage output
7
N/C
Unconnected
8
RxD/TxD-
Receive/transmit - data
9
N/C
Unconnected
R1=390
Ω
±2% 1/4W
R2=220
Ω
±2% 1/4W
R3=390
Ω
±2% 1/4W
1 2 3 4 5
6 7 8 9
1 2 3 4 5
6 7 8 9
R1
R2
R3