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Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.

Omron NX-EC0132 — front face of the Omron retail carton showing the NX-EC0132 label, the Incremental Encoder Input 1CH Line receiver markings, the screwless clamp terminal block diagram, and the blue Omron brand strip

Omron NX-EC0132 — NX 1-Ch Encoder Input, RS-422

SKU: NX-EC0132

USD 132.00

Omron NX-EC0132 NX-series 1-channel incremental encoder input with RS-422 line receiver, NPN, 4 MHz A/B phases. In stock, China shipping.

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Product Overview

The Omron NX-EC0132 is the NX-series 1-channel incremental encoder input unit with line receiver (RS-422) input, manufactured by Omron Corporation. Hengyixin Automation stocks this controller option board in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's NX-series Position Interface Unit datasheet.

It sits on the NX I/O bus behind an NX-ECC201 EtherCAT Coupler, NX102, or NX1P2 CPU and reads one incremental encoder. Phases A and B accept single-phase pulses at 4 MHz, or 1 MHz in 4x phase-difference mode; phase Z accepts 1 MHz. The 32-bit counter covers +/-2,147,483,647 pulses in linear or ring mode, with two external and one internal latch inputs.

Three external 24 VDC NPN inputs (1 microsecond ON/OFF response) handle gate, reset, and presets. The slice supplies 5 VDC at 500 mA to the encoder from a built-in isolated supply. It is 24 mm wide, 100 x 71 mm, 130 g, with two 12-terminal screwless push-in connectors. For a PNP line-receiver version pick NX-EC0142. SIL None.

Key Features

  • NX-series 1-channel incremental encoder input with RS-422 line receiver (RS-422) input, NPN internal I/O common
  • Phases A and B 4 MHz single-phase / 1 MHz x4 phase-difference, phase Z 1 MHz, 32-bit counter range plus ring/linear mode
  • 3 external 24 VDC NPN gate/reset inputs with 1 microsecond response, 5 VDC +/-5% 500 mA max encoder supply (non-isolated supply; A/B/Z signals digitally isolated)
  • Screwless push-in 12-terminal x 2 connector, 12 x 100 x 71 mm, 130 g, Free-Run / Synchronous / Task Period Prioritized refreshing
  • SKU: NX-EC0132
  • Series: NX-series Position Interface Unit (NX-EC family) on NX I/O Bus and EtherCAT Coupler

Best-Fit Applications

  • Spindle-position feedback on a five-axis CNC where an NX102-1200 polls the 4 MHz A/B signal over EtherCAT at the primary task period
  • Cut-to-length registration on a packaging machine where the NX-EC0132 reads a 600 P/R encoder on the draw roll and gates on a prox sensor
  • Spare replacement on a labeling line where the original NX-EC0132 was lost and the Sysmac Studio tag database points at the same I/O map

Buying Checklist

  • Pick the NX-EC0132 when the project needs one RS-422 line-receiver encoder channel with NPN external inputs on a 24 mm wide NX slice.
  • Pick the NX-EC0142 instead when the external inputs need PNP (sourcing) instead of NPN (sinking) on the same 1-channel line receiver.
  • Pick the NX-EC0112 instead when the encoder outputs 24 VDC voltage instead of RS-422 differential and the inputs are NPN.

Technical Specifications

Manufacturer Omron Corporation (Japan)
Series NX-series Position Interface Unit (NX-EC family) on NX I/O Bus and EtherCAT Coupler
Model / SKU NX-EC0132
Number of Channels 1 encoder channel
Input Signal Line receiver (RS-422); phases A and B 4 MHz single-phase / 1 MHz x4 phase-difference; phase Z 1 MHz
Counter Range -2,147,483,648 to +2,147,483,647 pulses (32-bit); ring or linear counter
External Inputs 3 points NPN, 24 VDC +20%/-15%, 1 microsecond ON/OFF response, 3.5 mA typical at 24 VDC
Encoder Supply 5 VDC +/-5%, 500 mA max output from a non-isolated supply; A/B/Z signals use a digital isolator
Input Modes Phase difference x2 / x4, pulse + direction, up/down pulse
Refreshing Free-Run, Synchronous, or Task Period Prioritized refreshing
Connection / Power Screwless push-in 12-terminal x 2; NX unit power 1.25 W max on CPU, 0.95 W max on Communications Coupler; 24 VDC supply via NX bus
Dimensions / Approvals 12 (W) x 100 (H) x 71 (D) mm; 130 g; IP20; SIL None (not for safety); CE, cULus, RCM, KC, EAC

Manufacturer documentation

Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.

FAQ for NX-EC0132

What is the Omron NX-EC0132 used for?
It is the NX-series 1-channel incremental encoder input unit for RS-422 line-receiver signals. Typical uses are spindle-position feedback on a five-axis CNC, cut-to-length registration on a packaging machine, and replacement of an NX-EC0132 on a labeling line where the Sysmac Studio tag database points at the same I/O map.
NX-EC0132 vs NX-EC0142 - what is the difference?
Both are NX-series 1-channel incremental encoder inputs with RS-422 line-receiver input. The NX-EC0132 has 3 NPN external inputs; the NX-EC0142 has 3 PNP external inputs. Maximum encoder input frequency (4 MHz on A/B, 1 MHz on Z), 5 VDC 500 mA encoder supply, and 24 x 100 x 71 mm body are the same on both. Pick the NX-EC0132 for NPN field devices; pick the NX-EC0142 for PNP field devices.
What is the maximum encoder frequency for the NX-EC0132?
4 MHz on phases A and B in single-phase mode, 1 MHz in 4x phase-difference mode, and 1 MHz on phase Z. The 32-bit counter covers +/-2,147,483,647 pulses in ring or linear mode with two external latch inputs plus one internal latch. Refresh mode can be Free-Run, Synchronous, or Task Period Prioritized in Sysmac Studio.
Can the NX-EC0132 supply power to the encoder?
Yes. The slice supplies 5 VDC at 500 mA from an isolated output. This covers most 5 VDC line-driver encoders on the market. For a 24 VDC encoder or a heavy-load encoder, power the encoder from a separate 24 VDC supply and wire only the A, B, Z signals to the NX-EC0132 screwless terminal.
Is the NX-EC0132 suitable for safety functions?
No. The NX-EC0132 is marked SIL None and is not for safety functions. For an encoder on a safety-controlled axis (SIL 2 / PL d), use the NX-EC0132 only for the standard (non-safety) position loop, and put the safety encoder on an NX-SL3300 or NX-SL3500 safety controller.

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