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NX-EC0[][][]

NX-series Incremental Encoder Input Unit

NX-EC0[][][]

Read position information from incremental encoders, synchronised with the control cycle and EtherCAT Distributed Clock.

General Specification

Item Specification
Enclosure Mounted in a panel
Grounding method Ground to less than 100 Ω
Operating
environment
Ambient operating temperature 0 to 55°C
Ambient operating humidity 10% to 95% (with no condensation or icing)
Atmosphere Must be free from corrosive gases.
Ambient storage temperature -25 to 70°C (with no condensation or icing)
Altitude 2,000 m max.
Pollution degree Pollution degree 2 or less: Conforms to JIS B3502 and IEC 61131-2.
Noise immunity Conforms to IEC61000-4-4, 2 kV (power supply line)
Overvoltage category Category II: Conforms to JIS B3502 and IEC 61131-2.
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of
9.8 m/s2, 100 min each in X, Y, and Z directions (10 sweeps of 10
min each = 100 min total)
Shock resistance Conforms to IEC 60068-2-27. 147 m/s2, 3 times each in X, Y, and
Z directions
Applicable standards * cULus: Listed (UL508) or Listed (UL 61010-2-201),ANSI/ISA
12.12.01,
EU: EN 61131-2, C-Tick or RCM, KC Registration, NK, LR

*Ask your OMRON representative for the most recent applicable standards for each model.

Specification

Incremental Encoder Input Units

NX-EC0112

Unit name Incremental Encoder Input Units Model NX-EC0112
Number of channels 1 channel Type of external
connections
Screwless clamping terminal block
(16 terminals)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_2_1 Input signals Counter: Phases A, B, and Z
External Inputs: 3
Input form Voltage input (24 V)
Counting unit Pulses
Pulse input method Phase differential pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Two external input latches and one internal latch
Voltage input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/-15%)
ON voltage 19.6 VDC min./3 mA min.
Input current 4.2 mA typical (24 VDC) OFF voltage 4.0 VDC max./1 mA max.
Maximum response
frequency
Phases A and B: Single-phase 500 kHz (phase differential pulse input x4: 125 kHz),
Phase Z: 125 kHz
Internal I/O common
processing
NPN
External input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%, -15%)
ON voltage/
ON current
15 VDC min./3 mA min.
Input current 4.6 mA typical (24 VDC) OFF voltage/
OFF current
4.0 VDC max./1 mA max.
ON/OFF response
time
1 μs max./2 μs max.
Internal I/O common
processing
NPN
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
method
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%, -15%)
Current capacity
of I/O power
supply terminals
IOV: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other
sections
IOG: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other
sections
NX Unit power
consumption
• Connected to a CPU Unit
1.15 W max.
• Connected to a Commu-
nications Coupler Unit
0.85 W max.
Current
consumption from
I/O power supply
None
Weight 70 g max.
Circuit layout 3190_sp_2_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_2_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

NX-EC0122

Unit name Incremental Encoder Input Units Model NX-EC0122
Number of channels 1 channel Type of external
connections
Screwless push-in terminal block
(16 terminals)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_3_1 Input signals Counter: Phases A, B, and Z
External Inputs: 3
Input form Voltage input (24 V)
Counting unit Pulses
Pulse input method Phase difference pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Two external input latches and one internal latch
Voltage input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/-15%)
ON voltage 19.6 VDC min./3 mA min.
Input current 4.2 mA typical (24 VDC) OFF voltage 4.0 VDC max./1 mA max.
Maximum response
frequency
Phases A and B: Single-phase 500 kHz (phase difference pulse input x4: 125 kHz),
Phase Z: 125 kHz
Internal I/O common
processing
PNP
External input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/-15%)
ON voltage/
ON current
15 VDC min./3 mA min.
Input current 4.6 mA typical (24 VDC) OFF voltage/
OFF current
4.0 VDC max./1 mA max.
ON/OFF response
time
1 μs max./2 μs max.
Internal I/O common
processing
PNP
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
source
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%/-15%)
Current capacity
of I/O power
supply terminals
IOV: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other
sections
IOG: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other
sections
NX Unit power
consumption
• Connected to a CPU Unit
1.30 W max.
• Connected to a Commu-
nications Coupler Unit
0.95 W max.
Current
consumption from
I/O power supply
None
Weight 70 g max.
Circuit layout 3190_sp_3_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_3_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

NX-EC0132

Unit name Incremental Encoder Input Units Model NX-EC0132
Number of channels 1 channel Type of external
connections
Screwless clamping terminal block
(12 terminals × 2)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_4_1 Input signals Counter: Phases A, B, and Z
External Inputs: 3
Input form Line receiver input
Counting unit Pulses
Pulse input method Phase differential pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Pulse rate measurement and pulse period measurement
Line driver specifications
Input voltage EIA standard RS-422-A line
driver levels
High level input
voltage
VIT+: 0.1 V min.
Input impedance 120 Ω ± 5% Low level input
voltage
VIT-: -0.1 V min.
Hysteresis voltage Vhys (VIT+ - VIT-): 60 mV
Maximum response
frequency
Phases A and B: Single-phase 4 MHz (phase differential pulse input x4: 1 MHz),
Phase Z: 1 MHz
5-V power supply for
encoder
Output voltage: 5 VDC ±5%
Output current: 500 mA max.
External input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%, -15%)
ON voltage/
ON current
15 VDC min./3 mA min.
Input current 3.5 mA typical (24 VDC) OFF voltage/
OFF current
5.0 VDC max./1 mA max.
ON/OFF response
time
1 μs max./1 μs max.
Internal I/O common
processing
NPN
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Digital isolator
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
method
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%, -15%)
Current capacity
of I/O power
supply terminals
IOV: 0.1 A max. per terminal
IOG: 0.1 A max. per terminal
NX Unit power
consumption
• Connected to a CPU Unit
1.25 W max.
• Connected to a Commu-
nications Coupler Unit
0.95 W max.
Current
consumption from
I/O power supply
Unit current consumption: 30 mA max.
Consumption from encoder
5-V power supply:
Encoder current consumption
*0.28 mA
Weight 130 g max.
Circuit layout 3190_sp_4_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_4_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

NX-EC0142

Unit name Incremental Encoder Input Units Model NX-EC0142
Number of channels 1 channel Type of external
connections
Screwless push-in terminal block
(12 terminals × 2)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_5_1 Input signals Counter: Phases A, B, and Z
External Inputs: 3
Input form Line receiver input
Counting unit Pulses
Pulse input method Phase difference pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Pulse rate measurement and pulse period measurement
Line driver specifications
Input voltage EIA standard RS-422-A line
driver levels
High level input
voltage
VIT+: 0.1 V min.
Input impedance 120 Ω ± 5% Low level input
voltage
VIT-: -0.1 V min.
Hysteresis voltage Vhys (VIT+ - VIT-): 60 Mv
Maximum response
frequency
Phases A and B: Single-phase 4 MHz (phase difference pulse input x4: 1 MHz),
Phase Z: 1 MHz
5-V power supply for
encoder
Output voltage: 5 VDC
Output current: 500 mA max.
External input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/.15%)
ON voltage/
ON current
15 VDC min./3 mA min.
Input current 3.5 mA typical (24 VDC) OFF voltage/
OFF current
4.0 VDC max./1 mA max.
ON/OFF response
time
1 μs max./2 μs max.
Internal I/O common
processing
PNP
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
source
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%/-15%)
Current capacity
of I/O power
supply terminals
IOV: 0.1 A max. per terminal
IOG: 0.1 A max. per terminal
NX Unit power
consumption
• Connected to a CPU Unit
1.50 W max.
• Connected to a Commu-
nications Coupler Unit
1.05 W max.
Current
consumption from
I/O power supply
Unit current consumption: 30 mA max.
Consumption from encoder
5-V power supply:
Encoder current consumption
*0.28 mA
Weight 130 g max.
Circuit layout 3190_sp_5_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_5_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

NX-EC0212

Unit name Incremental Encoder Input Units Model NX-EC0212
Number of channels 2 channels Type of external
connections
Screwless clamping terminal block
(12 terminals)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_6_1 Input signals Counter: Phases A, B, and Z
External Inputs: None
Input form Voltage input (24 V)
Counting unit Pulses
Pulse input method Phase differential pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Two external input latches and one internal latch
Voltage input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%, -15%)
ON voltage 19.6 VDC min./3 mA min.
Input current 4.2 mA typical (24 VDC) OFF voltage 4.0 VDC max./1 mA max.
Maximum response
frequency
Phases A and B: Single-phase 500 kHz (phase differential pulse input x4: 125 kHz),
Phase Z: 125 kHz
Internal I/O common
processing
NPN
External input specifications
Input voltage - ON voltage/
ON current
-
Input current - OFF voltage/
OFF current
-
ON/OFF response time -
Internal I/O common
processing
-
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
method
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%, -15%)
Current capacity
of I/O power
supply terminals
IOV: 0.3 A max. per terminal
IOG: 0.3 A max. per terminal
NX Unit power
consumption
• Connected to a CPU Unit
1.15 W max.
• Connected to a Commu-
nications Coupler Unit
0.85 W max.
Current
consumption from
I/O power supply
None
Weight 70 g max.
Circuit layout 3190_sp_6_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_6_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

NX-EC0222

Unit name Incremental Encoder Input Units Model NX-EC0222
Number of channels 2 channels Type of external
connections
Screwless push-in terminal block
(12 terminals)
I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *
Indicators 3190_sp_7_1 Input signals Counter: Phases A, B, and Z
External Inputs: None
Input form Voltage input (24 V)
Counting unit Pulses
Pulse input method Phase difference pulse (multiplication x2/4), pulse + direction inputs,
or up and down pulse 3inputs
Counter range -2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type Ring counter or linear counter
Counter controls Gate control, counter reset, and counter preset
Latch function Two external input latches and one internal latch
Measurements Two external input latches and one internal latch
Voltage input specifications
Input voltage 20.4 to 28.8 VDC
(24 VDC +20%/-15%)
ON voltage 19.6 VDC min./3 mA min.
Input current 4.2 mA typical (24 VDC) OFF voltage 4.0 VDC max./1 mA max.
Maximum response
frequency
Phases A and B: Single-phase 500 kHz (phase difference pulse input x4: 125 kHz),
Phase Z: 125 kHz
Internal I/O common
processing
PNP
External input specifications
Input voltage - ON voltage/
ON current
-
Input current - OFF voltage/
OFF current
-
ON/OFF response
time
-
Internal I/O common
processing
-
Dimensions 12 × 100 × 71 mm
(W × H × D)
Isolation method Photocoupler isolation
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC)
Dielectric
strength
510 VAC between isolated circuits
for 1 minute with leakage current
of 5 mA max.
I/O power supply
source
Supplied from the NX bus.
20.4 to 28.8 VDC
(24 VDC +20%/-15%)
Current capacity
of I/O power
supply terminals
IOV: 0.3 A max. per terminal
IOG: 0.3 A max. per terminal
NX Unit power
consumption
• Connected to a CPU Unit
1.30 W max.
• Connected to a Commu-
nications Coupler Unit
0.95 W max.
Current
consumption from
I/O power supply
None
Weight 70 g max.
Circuit layout 3190_sp_7_2
Installation orientation
and restrictions
Installation orientation:
• Connected to a CPU Unit: Possible in upright installation.
• Connected to a Communications Coupler Unit: Possible in 6 orientations.
Restrictions: There are no restrictions.
Terminal connection
diagram
3190_sp_7_3
Failure detection None Protection None

* The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit.

Version Information

Connecting with CPU Units

Refer to the user’s manuals for the CPU Unit for details on the CPU Units to which NX Units can be connected.

NX Unit Corresponding versions *
Model Unit version CPU Unit Sysmac Studio
NX-EC0112 Ver.1.1 or later Ver.1.13 or later Ver.1.17 or higher
Ver.1.2 or later
NX-EC0122 Ver.1.0 or later
Ver.1.1 or later
Ver.1.2 or later
NX-EC0132 Ver.1.1 or later
Ver.1.2 or later
NX-EC0142 Ver.1.0 or later
Ver.1.1 or later
Ver.1.2 or later
NX-EC0212 Ver.1.1 or later
Ver.1.2 or later
NX-EC0222 Ver.1.0 or later
Ver.1.1 or later
Ver.1.2 or later

* Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
    support is provided by the oldest available version after the specified version. Refer to the user's manuals for the
    specific Units for the relation between models and versions.

Connecting with Coupler Units

NX Unit Corresponding versions *1
Model Unit version EtherCAT
Communications
Coupler Unit
NJ/NX-series CPU
Units or NY-series
Industrial PCs
Sysmac Studio
NX-EC0112 Ver.1.1 Ver.1.1 or later *2 Ver.1.06 or later *2 Ver.1.10 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher
NX-EC0122 Ver.1.0 Ver.1.1 or later *2 Ver.1.07 or higher
Ver.1.1 Ver.1.08 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher
NX-EC0132 Ver.1.1 Ver.1.1 or later *2 Ver.1.10 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher
NX-EC0142 Ver.1.0 Ver.1.1 or later *2 Ver.1.07 or higher
Ver.1.1 Ver.1.08 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher
NX-EC0212 Ver.1.1 Ver.1.1 or later *2 Ver.1.10 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher
NX-EC0222 Ver.1.0 Ver.1.1 or later *2 Ver.1.07 or higher
Ver.1.1 Ver.1.08 or higher
Ver.1.2 Ver.1.3 or later *3*4 Ver.1.13 or higher

NX Unit Corresponding versions *1
Model Unit version EtherNet/IP
Communications
Coupler Unit
Sysmac Studio
NX-EC0112 Ver.1.1 Ver.1.0 or later Ver.1.10 or higher
Ver.1.2 Ver.1.13 or higher
NX-EC0122 Ver.1.0 Ver.1.10 or higher
Ver.1.1
Ver.1.2 Ver.1.13 or higher
NX-EC0132 Ver.1.1 Ver.1.10 or higher
Ver.1.2 Ver.1.13 or higher
NX-EC0142 Ver.1.0 Ver.1.10 or higher
Ver.1.1
Ver.1.2 Ver.1.13 or higher
NX-EC0212 Ver.1.1 Ver.1.10 or higher
Ver.1.2 Ver.1.13 or higher
NX-EC0222 Ver.1.0 Ver.1.10 or higher
Ver.1.1
Ver.1.2 Ver.1.13 or higher

*1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
      support is provided by the oldest available version after the specified version. Refer to the user's manuals for the
      specific Units for the relation between models and versions.
*2. You can use the following versions if time stamp refreshing is not used.
      EtherCAT Coupler Unit: Version 1.0
      NJ-series CPU Unit: Version 1.05
*3. To use task period prioritized refreshing, you must use the NX-ECC203.
*4. If you do not use task period prioritized refreshing, you can use EtherCAT Coupler Units which support Position
      Interface Units with unit version 1.1 or earlier.