Omron NX-EC0222 NX Series 2-Channel Incremental Encoder Input Unit

Omron NX-EC0222 is an incremental encoder input unit for the NX series I/O system. 2 PNP input channels for Phases A, B, and Z signals. Supports single‑phase input up to 500 kHz and phase difference pulse (x4 multiplication) input up to 125 kHz. Screwless push‑in terminal block for tool‑free wiring. 12 mm width for high‑density mounting.

Applications:

• Precise position and speed feedback in motion control

• Servo motor and linear drive positioning

• Conveyor material tracking and length measurement

• CNC machine tool axis feedback

Technical Specifications:

• Number of encoder input channels: 2

• Input type: Incremental encoder, PNP (voltage input)

• Signal inputs: Phases A, B, Z

• Max. input frequency:

  • Single-phase input: 500 kHz

  • Phase difference pulse (x4 multiplication): 125 kHz

  • Phase Z (reference pulse): 125 kHz

• Signal processing: Free‑run, synchronous, task period prioritized

• Counter range: ±2,147,483,647

• I/O connection: Screwless push‑in terminal block (removable)

• Number of IOV (V+) terminals: 2

• Number of IOG (V‑) terminals: 2

• Supply voltage: 24 V DC

• Power consumption: 0.95 W (at 5 V DC)

• NX bus power consumption: 0.95 W max.

• Protection rating: IP20

• Dimensions (H × W × D): 104.5 mm × 12 mm × 80.1 mm

• Weight: approx. 100 g

• Operating temperature: 0 °C … 55 °C

• Storage temperature: –25 °C … 70 °C

• Certifications: CE, cULus (Class I Division 2), NK, Lloyd, KC, RCM, RoHS

System Integration:

• This encoder input unit belongs to the Omron NX series I/O system.

• Requires an NX series communication coupler unit (e.g., EtherCAT coupler NX‑ECC203 or EtherNet/IP coupler NX‑EIC202) for operation.

• Supports free‑run, synchronous, and task period prioritized signal processing modes.

• Mounts on 35 mm DIN rail; connects to the NX bus via the communication coupler.

Related Products:

• NX‑ECC203 – EtherCAT coupler unit for NX I/O system

• NX‑EIC202 – EtherNet/IP coupler unit for NX I/O system

• NX‑PF0630 – Additional I/O power supply unit (4 A, 5‑24 V DC)

• NX‑EC0212 – Incremental encoder input unit (2 channels, NPN version)

• NX‑PG0112 – Pulse output unit for NX I/O system