YASKAWA PROFINET 1000 Series Technical Manual page 17

Network Topology and Connections
The dual RJ45 network ports on the option board act as a switch to allow for flexibility in cabling topology. For example,
a traditional star network topology may be employed by using a single port on the option board. Alternatively,
a daisy-chained approach may be employed by using both RJ45 ports. This second approach reduces the requirements of
central switch ports.
Figure 8
Communication Cable Specifications
Only use cables recommended for PROFINET. Using a cable not specifically recommended may cause the option or
drive to malfunction.
The use of CAT5e or equivalent Shielded Twisted Pair (STP) cable is recommended.
7.
Use the second communication cable port to daisy chain a series of drives where applicable. Refer to
Connection Diagram
PROFINET Master
<1> The ground wire provided in the option shipping package must be connected during installation.
YASKAWA SIEP YEACOM 07A 1000-Series Option PROFINET SI-EP3 Technical Manual
Cable Topology A
Traditional Star Network
STOP
V1000
V1000 V1000
(Hz)
(Hz)
(A)
(V)
A1000 A1000 A1000
Figure 8 Topology Options
Power
PROFINET Cable
PROFINET Cable
Figure 9 Wiring Diagram
Cable Topology B
Daisy Chain Network
V1000 V1000
A1000 A1000
R/L1 U/T1
S/L2 V/T2
T/L3 W/T3
A1000
<1>
SI-EP3
PROFINET
Option
5 Installation Procedure
V1000
A1000
M Motor
FE
Figure 8.
17