Datasheet

NX series I/O 35


Current limiter
Inter-
nal
cir-
cuits
Isola-
tion
cir-
cuit
Power
supply
I/O power supply +
I/O power supply
I/O power supply +
I/O power supply
Left-side
NX bus
connector
Right-side
NX bus
connector
A, B, Z
I0 to I2
IOG
IOV
Terminal block
NX-EC0132/EC0142
Encoder 1
Encoder 2
A1
Z1
IOV
IOG
A2
Z2
B1
NC
IOV
IOG
B2
NC
I0
IOV
IOG
I1 A+
A-
Z+
Z-
B+
B-
5V
0V
IOV
IOG
I2
IOV
IOG
NC
NC
NC
NC
NC
NC
NC
Sensor 1
Sensor 2
Sensor 3
Encoder
Terminal wiring
NX-EC0212
Circuit layout
NX-EC0212
NX-EC0132/EC0142
Encoder Input (NX-EC0132/EC0142)
External Inputs (NX-EC0132)
120

A-, B-, Z-
A+, B+, Z+
No isolation: 5 V GND
No isolation: 5 V
No isolation: 5 V GND
Terminal block
No isolation: 5 V
I/O power supply +
I/O power supply

I/O power supply +
I/O power supply

Encoder power supply output, 5V
Encoder power supply output, 0V
Terminal
block
Inter-
nal
cir-
cuits
Isola-
tion
cir-
cuit
Left-side
NX bus
connector
Right-side
NX bus
connector
Non-
isolated
power
supply
Encoder 1
Encoder 2
A1
Z1
IOV
IOG
A2
Z2
B1
NC
IOV
IOG
B2
NC
NX-EC0222
Current limiter
IOV
A1, B1, Z1
A2, B2, Z2
IOG
I/O power supply +
I/O power supply

I/O power supply +
I/O power supply

Terminal block
Inter-
nal
cir-
cuits
Right-side
NX bus
connector


Right-side
NX bus
connector
Left-side
NX bus
connector
I/O power supply +
I/O power supply
I/O power supply +
I/O power supply
Current limiter
Inter-
nal
cir-
cuits
IOV
A1, B1, Z1
A2, B2, Z2
IOG
Terminal block
Left-side
NX bus
connector
NX-EC0222
External Inputs (NX-EC0142)
A, B, Z
I0 to I2
Power
IOG
IOV
I/O power supply +
I/O power supply

I/O power supply +
I/O power supply

Terminal block
Current limiter
Inter-
nal
cir-
cuits
Isola-
tion
cir-
cuit
Left-side
NX bus
connector
Right-side
NX bus
connector
Power
supply