NX-EC0[][][] – NX-series Incremental Encoder Input Unit – Omron Position Interface Unit

$ 255.20 – $ 309.54

SKU: N/A

Position Interface: Incremental Encoder Input Units

Product
name		 Specification Model
Number
of
channels		 External
inputs		 Maximum
response
frequency		 I/O
refreshing
method
*		 Number
of I/O
entry
mappings		 Remarks
Incremental
Encoder
Input
Unit
3190_lu_1_1		 1
(NPN)		 3
(NPN)		 500 kHz • Free-Run
refreshing
• Synchro-
nous I/O
refreshing
• Task
period
prioritized
refreshing		 1/1 24-V
voltage
input		 NX-EC0112
1
(PNP)		 3
(PNP)		 NX-EC0122
1 3
(NPN)		 4 MHz Line
receiver
input		 NX-EC0132
3
(PNP)		 NX-EC0142
2
(NPN)		 None 500 kHz 2/2 24-V
voltage
input		 NX-EC0212
2
(PNP)		 NX-EC0222

 

* Refer to the I/O Refreshing Methods in the USER’S MANUAL (Cat. No. W524) for the communications cycles for each
model.

 

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: Meets IEC 61010-2-201.
Noise immunity Conforms to IEC61000-4-4, 2 kV (power supply line)
Overvoltage category Category II: Meets IEC 61010-2-201.
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.

 

Incremental Encoder Input Unit Specifications

Incremental Encoder Input Unit

Unit name Incremental Encoder Input Unit 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.

 

Unit name Incremental Encoder Input Unit 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.

 

Unit name Incremental Encoder Input Unit 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:
0.28 × Encoder current consumption 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.

 

Unit name Incremental Encoder Input Unit 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:
0.28 × Encoder current consumption 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.

 

 

Unit name Incremental Encoder Input Unit 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.

 

 

Unit name Incremental Encoder Input Unit 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.

Weight N/A
Dimensions N/A
Model

NX-EC0112, NX-EC0122, NX-EC0132, NX-EC0142, NX-EC0212, NX-EC0222

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