Omron CJ1W-NC113 Single-Axis Position Control Unit for CJ Series PLCs

Product Overview

The Omron CJ1W-NC113 is a position control unit (PCU) designed for the CJ series programmable logic controllers. It provides a single axis of motion control, generating high-speed pulse trains to drive servo amplifiers or stepper motor drives. This module is ideal for applications requiring precise positioning, such as pick-and-place machines, indexing tables, and single-axis slide positioning. The CJ1W-NC113 supports pulse output frequencies up to 500 kHz (line driver) or 200 kHz (open collector), enabling high-speed, high-resolution positioning. It is part of Omron's CJ series motion control family, offering easy integration with CJ CPUs via the backplane bus.

Key Features of CJ1W-NC113

The module provides two pulse output types: open collector (24 V DC, max 200 kHz) and line driver (5 V DC, max 500 kHz), selectable via wiring. It includes dedicated inputs for home proximity, limit switches (positive and negative), and external interrupt. The CJ1W-NC113 supports multiple operating modes: direct positioning, speed control, and interpolation with other axes (when used with multiple modules). It can store up to 500 positioning sequences in its internal memory, allowing complex motion profiles without burdening the CPU. The unit features programmable acceleration and deceleration (trapezoidal or S-curve).

Communication with the CJ CPU is via the backplane, using dedicated data registers for command and status. The module can be programmed using CX-One software with motion function blocks. It includes LED indicators for power, run, error, and axis status. The unit requires an external 24 V DC power supply for I/O circuits. It has a compact size, occupying one slot in a CJ series rack. The CJ1W-NC113 operates in temperatures from 0 to 55°C and is CE and UL certified.

Technical Specifications

• Manufacturer: Omron Corporation

• Part Number: CJ1W-NC113

• Series: CJ1W (CJ series)

• Product Type: Position Control Unit (1 axis)

• Output Type: Open collector (200 kHz) or line driver (500 kHz)

• Number of Axes: 1

• Positioning Data: Up to 500 sequences

• Acceleration/Deceleration: Trapezoidal, S-curve

• Dedicated Inputs: Home, limit +/-, external interrupt

• Control Modes: Direct positioning, speed, interpolation (multi-unit)

• Power Supply: 24 V DC external (for I/O), 5 V DC from backplane

• Current Consumption: 250 mA (5 V), 40 mA (24 V)

• Indicators: Power, run, error, axis LEDs

• Operating Temperature: 0 to +55 °C

• Degree of Protection: IP20

• Dimensions (W x H x D): 35 mm x 90 mm x 85 mm

• Certifications: CE, UL, CSA

Functional Description

The CJ1W-NC113 receives positioning commands (target position, speed, acceleration) from the CJ CPU. It then generates the corresponding pulse train on the output, which drives a servo drive or stepper drive. The module can execute homing sequences using the home and limit inputs. The internal memory stores pre-defined position data, allowing the CPU to simply trigger a sequence number to execute complex moves. The unit also supports direct operation, where the CPU writes a position and speed and the module moves immediately. Encoder feedback is not processed by the module; it is handled by the servo drive.

Applications

The CJ1W-NC113 is used in single-axis positioning applications such as linear slides, rotary tables, labeling machines, and pick-and-place units. It is a replacement module for existing CJ1W-NC113 units in Omron PLC systems.