Omron NX-EC0122 NX Series Encoder Input Module

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Manufacturer: Omron
Product No.: NX-EC0122
Country of origin:Japan
Product Type: Encoder Input Modules
Payment: T/T, Western Union
Weight: 1000g
Dimensions: 104.5 mm x 12 mm x 80.1 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for high-speed motion tracking within the Sysmac automation platform, the Omron NX-EC0122 provides high-speed incremental encoder input processing over the high-speed NX I/O Bus. It supports high-resolution PNP incremental encoders, offering real-time synchronization with machine controllers for applications demanding exact positioning. This module allows multi-mode signal processing, adapting to varying scan cycle demands to maintain system performance.

Features

Single-channel incremental encoder input supporting PNP interface types.
High-speed response capability with a maximum input frequency of 500 kHz.
Flexible processing architectures, featuring Free running, Synchronous, and Task period prioritized modes.
Direct integration with the Sysmac Studio software platform for simplified configuration and diagnostics.
Detachable, toolless push-in connection system to minimize wiring time and physical footprint.
Four IOV and four IOG power supply terminals, allowing integrated encoder distribution.

Applications

High-speed packaging and continuous rotary sealing lines.
Synchronized conveyor belt material tracking and sorting.
Web handling, unwinding, and tension control processes.
Dynamic positioning systems coupled with servo and variable speed drives.

Technical Specifications

Parameter	Specification
Manufacturer	Omron
Model Number	NX-EC0122
Module Type	Encoder Input (Incremental)
I/O System Connection	NX I/O Bus
Digital Input Type	Incremental encoder, PNP
Number of Channels	1 Channel
Max. Encoder Input Frequency	500 kHz
Signal Processing Modes	Free running, Synchronous, Task period prioritized
I/O Connection Type	Push-in Terminal Block (12 terminals)
Detachable Terminal Block	Yes
Power Terminals	4x IOV (V+), 4x IOG (V-)
IP Rating	IP20
Dimensions (H x W x D)	104.5 mm x 12 mm x 80.1 mm
Net Weight	70 g
Shipping Weight (Calculated)	1.0 kg (packaged)

Connections and Interfaces

Terminal Label	Function Assignment
A / B / Z	Incremental Encoder Phases A, B, and Z inputs (PNP level)
IOV	Power supply positive terminals for connected encoders (4 terminals total)
IOG	Power supply common/ground terminals for connected encoders (4 terminals total)
NC	No connection / Reserved

Alternative Models & Compatibility

The NX-EC0122 is designed for PNP interface configurations. If your hardware architecture requires NPN open-collector or differential line driver signal handling, you must source the NX-EC0112 (NPN) or NX-EC0142 (Line Driver) respectively. It integrates directly with NX-series bus couplers (EtherCAT or EtherNet/IP) and Sysmac NX102 or NX1P2 series controllers.

Application Pitfalls & Engineering Notes

Verify the aggregate current load drawn from the IOV/IOG distribution terminals. While the 4 terminals simplify wiring, they draw from the internal NX-bus power supply; if the encoder's power consumption exceeds the NX bus limits, an external auxiliary power supply must be integrated to prevent bus voltage dropouts. At high pulse frequencies close to the 500 kHz threshold, signal distortion can occur if routing cabling over distances greater than 10 meters without high-quality low-capacitance shielded wire.

Commissioning & Wiring Tips

Ensure encoder cables are separated from high-voltage AC power lines by at least 100 mm to suppress electromagnetic interference. Terminate the cable shield only at the designated industrial grounding bar or communication coupler clamp. To prevent damage to the push-in spring clamps, use only recommended wire ferrules with solid cores, keeping the insulation stripping length precise to avoid short circuits between adjacent active terminals.

Installation Guidelines

CRITICAL WARNING: Ensure all power supplies to the NX rack assembly, auxiliary distribution networks, and field sensors are physically isolated and locked out before attempting installation, wiring, or maintenance of this unit.

Align the guide rail on the side of the NX-EC0122 with the adjacent NX unit on the DIN rail.

Slide the module down until it firmly clicks onto the 35mm DIN rail and is locked with its neighbor unit.

Wire the encoder connections (Phases A/B/Z and IOV/IOG supply paths) using ferruled control lines inserted into the push-in block.

Power up the system and verify standard operational LED status via the primary industrial communication coupler.

Key Features:

#Encoder Input Modules #NX Series

What is the maximum input frequency supported by the NX-EC0122?

This module supports high-speed incremental encoder inputs with a maximum input frequency of up to 500 kHz.

Does this module support NPN or differential line driver encoders?

No, the NX-EC0122 is designed specifically for PNP type inputs. For NPN configurations, you should specify the NX-EC0112, and for line driver connections, use the NX-EC0142.

What options are available for signal processing modes?

The module allows configurable signal processing in Free running, Synchronous, or Task period prioritized modes to align precisely with your controller cycle times.

Are separate terminal blocks required to distribute power to the encoder?

No, the module features four IOV (V+) and four IOG (V-) terminals on its push-in block, enabling direct connection and distribution of power to the encoder.

Global Express Shipping

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Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
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Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin

Omron NX-EC0122 NX Series Encoder Input Module