Table of Contents
Advertisement
7.2 Grounding the Network
This section explains how to ground the network.
7.2.1 Grounding Methods
260IF Communications
To avoid creating a ground loop, ground the network at one point only for 260IF Module
communications. Position the ground as close to the center of the network as possible.
As shown in the following diagram, connect the cable shield wire to the ground terminal
(FG) on the power supply. Ground to a resistance of 100 Ω or less.
T-branch or Power Supply Tap
FG
Communications
power supply
Ground to a resistance
of 100 Ω or less
Cable Grounded at Power Supply (one place only)
Using Multiple Power Supplies
When using multiple power supplies for communications, connect the shield wire to the
power supply ground near the center of the network only. Do not connect the shield wire at
any other power supplies.
Use Power Supply Taps when connecting multiple communications power supplies to a net-
work.
Power supplies are not counted as nodes.
1 Always ground to a resistance of 100 Ω or less.
INFO
2 Ground the power supply separately from the servodrives and inverters.
3 Do not connect the shield wire to multiple points on the network. Connect it to one point only.
www.dadehpardazan.ir 88594014-15
V +
C AN H
Communication
Shield
cable
C AN L
V-
V+
V-
7-9
7.2 Grounding the Network
Power Supply Tap
V+
C AN H
Shield
C AN L
V-
FG
V+
V-
Communications
power supply
Ground to a resistance of 100 Ω or less.
Cable Not Grounded at Power Supply
Communication
cable
7
Advertisement
Table of Contents
