YASKAWA 1000 Series Installation Manual page 23

Figure 9
Figure 9 PROFIBUS Cable Connection with Termination Resistors
Termination resistors without inductors as shown in
baud rates below 1.5 Mbps. Baud rates 1.5 Mbps and higher require termination
with resistors and inductors as shown in
Figure 10
Figure 10 Cable Termination of the Option Cable to EN50170
YASKAWA ELECTRIC TOBP C730600 42D 1000-Series Option SI-P3 Installation Manual
Switch
Incoming cable
Bus termination ON = incoming and outgoing cables not connected.
Bus termination OFF = incoming and outgoing cables connected.
VP (pin 6)
B - Data line
RxD/TxD-P (pin 3)
A - Data line
RxD/TxD-N (pin 8)
DGND (pin 5)
(Pin Numbers for a 9-pin D-sub Connector)
9-pin D-sub connector
Bus termination
ON
O
O O
OFF
Outgoing cable
Figure
390 Ω
220 Ω
390 Ω
5 Installation Procedure
Figure 10 can only be used for
8.
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