YASKAWA SI-P3/V Installation Manual page 17

5 Installation Procedure
Properly connect all pins and connectors.
Failure to comply may prevent proper operation and possibly damage equipment.
Check wiring to ensure that all connections are correct after installing the option
unit and connecting any other devices.
Failure to comply may result in damage to the option unit.
◆
Wiring Diagram
Figure 2.4
PROFIBUS Cable
To PROFIBUS-DP
Master
To the next slave
* The FE terminal on the PROFIBUS-DP Option is fitted with a ground cable that
should be connected to the ground terminal on the drive.
PROFIBUS-DP Termination
■
The PROFIBUS-DP Option PCB is not supplied with a built-in network terminating resistor.
Therefore, a 9-pin D-SUB connector with a built-in terminating resistor should be used.
Ensure that the terminating resistors are only closed at the two segment ends and nowhere
else. Any additional terminations can cause corruption of the PROFIBUS signals and
network malfunction.
In PROFIBUS 9-pin D-SUB connectors, the switch for the bus termination often has the
second function of isolating the outgoing cable from the connector to the next slave. It is
essential that only the incoming cable entry is used on connectors located at the ends of the
PROFIBUS segment. If an incorrect cable entry method is used, neither the PROFIBUS
device nor the termination network will be connected to the network segment. Most
connectors mark incoming and outgoing cable entries with arrows.
17
NOTICE
PROFIBUS Cable Connector
(Red)
1B
(Green) 1A
(Red)
2B
2A
(Green)
(Shell)
For the last node on the bus,
turn on the termination resistor switch.
Figure 4 Wiring Diagram
YASKAWA ELECTRIC TOBP C730600 23A V1000 Option PROFIBUS-DP Installation Manual
390 Ω 220 Ω 390 Ω
V1000
CN5
B-line
3
FE
A-line
8
RTS
4
SI-P3/V
VP
6
DGND 5
(Shell)
9-pin D-SUB Connector
*