Wiring The Shield Connection Unit - Omron Sysmac NX-PD1000 User Manual

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Wiring the Shield Connection Unit

The Shield Connection Unit is used when there are not enough terminals to connect the shield for the
connection of external devices.
This section describes how to wire the Shield Connection Unit.
Wiring Terminals
• SHLD terminal
• Functional ground terminals
Wiring Examples
The following shows a wiring example in which the shield wire is used to connect an Incremental
Encoder Input Unit (NX-EC0122) and a rotary encoder to the Shield Connection Unit.
Additional NX Unit
Power Supply Unit
NX-PD1000
A1
UV UV
DIN Track
UG UG
NC NC
A8
Ground of 100 Ω
or less
Connect the shield of cable to the SHLD terminal.
And ground the functional ground terminal to 100 Ω or less.
Refer to the hardware user's manual for the connected CPU Unit for details on grounding the CPU
Rack.
Refer to the user's manual for the connected Communications Coupler Unit for details on grounding the
Slave Terminal.
NX-series System Units User's Manual (W523)
Shield
Connection Unit
NX-TBX01
B1 A1 B1
SHLD SHLD
SHLD
SHLD
SHLD SHLD
SHLD SHLD
SHLD SHLD
SHLD SHLD
SHLD SHLD
B8 A8 B8
4 Installation and Wiring
Incremental Encoder
Input Unit
Shield
(Open collector input)
NX-EC0122
A1 B1
A B
Z NC
IOV IOV
IOG IOG
I0 I1
I2 NC
IOV IOV
IOG
IOG
A8 B8
Rotary Encoder
Shield
Sensor
Shield
Sensor
Shield
Sensor
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