Datasheet

44 Remote I/O
System unit
Shield connection unit (grounding terminal)
Item Specifications
Model NX-TBX01
Name Shield connection unit
Dielectric strength 510 VAC between isolated circuits for 1 minute at a leakage current of 5 mA max.
Insulation resistance 20 M min. between isolated circuits (at 100 VDC)
Isolation method Isolation between the SHLD functional ground terminal and internal circuit: no-isolation
Unit power consumption 0.45 W max.
I/O current consumption No consumption
Terminal block type Screwless push-in terminal
16 terminals (A + B with FG)
Number of
shield terminals
14 terminals (the following two terminals are Functional Ground terminals)
Dimensions (W x H x D) 12 × 100 × 71 mm
Weight 65 g max.
Terminal wiring
NX-TBX01
A1 B1
A8 B8
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
SHLD
A
Z
B
NC
IOV
IOG
IOV
IOG
I0
I2
I1
NC
IOV
IOG
IOV
IOG
A1
A8
B1
B8
Shield
Rotary encorder
Internal circuits
NX unit power supply 
NX unit power supply 
I/O power supply 
I/O power supply 
NX unit power supply 
NX unit power supply 
I/O power supply 
I/O power supply 
…
SHLD terminal
SHLD terminal
SHLD terminal
Circuit layout
NX-TBX01
Terminal
block
NX bus
connector
(left)
NX bus
connector
(right)
(Functional ground
terminal)
(Functional ground
terminal)
DIN track contact plate
(unit back surface)
Ground of 100 
or less
Shield
connection unit
NX-TBX01
Incremental encorder
input unit
(open collector input)