CJ1W-CT021

Name: CJ1W-CT021
Brand: OMRON
SKU: CJ1W-CT021

The OMRON CJ1W-CT021 is a high-speed counter unit ideal for precise control in industrial applications. It supports up to 500 kHz input frequencies, 32-bit counting range, and offers flexible configuration options.

Product ModelCJ1W-CT021

Product ID64329

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High-Speed PerformanceThe CJ1W-CT021 supports input frequencies of up to 500 kHz, ensuring precise control of fast motions in industrial applications.
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2. Flexible ConfigurationThe unit is freely configurable, allowing users to adjust its behavior according to specific application requirements. It supports three counter types: Simple, Circular, and Linear.
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3. Dual Digital InputsEquipped with two digital inputs (I0 and I1) that can be freely assigned to any counter, each input can be configured with one of 17 available functions, including gate, preset, reset, and capture functionalities.
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4. Advanced Output ControlThe unit can be configured in Range Mode or Comparison Mode for output control. In Range Mode, up to 32 ranges can control individual counters, while in Comparison Mode, up to 32 comparison values can be applied to individual counters.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

High-speed counter

Yes

Encoder Input Type

Line driver or NPN/PNP

Maximum Input Frequency

500kHz

Digital Input

Digital Input Type

PNP/NPN

Digital Outputs

5. Integrated Noise FilterThe CJ1W-CT021 features a digital variable noise filter, ensuring reliable operation even in noisy environments. This filter helps maintain the accuracy of the counter readings.

6. Versatile Output OptionsThe unit supports two external outputs and 30 internal outputs with counter value zone comparisons, target comparisons, delays, holds, programmable outputs, and hysteresis settings. This versatility makes it suitable for a wide range of industrial automation tasks.

7. Data Logging and Interrupt TasksThe CJ1W-CT021 supports pulse rate measurement and data logging functions. Additionally, counter outputs and external control inputs can trigger interrupt tasks in the CPU, enhancing its integration capabilities with PLC systems.

8. Compact DesignWith dimensions of 31 × 90 × 65 mm (W × H × D) and a weight of 100 g, the CJ1W-CT021 is designed for easy integration into CJ-series CPU racks or expansion racks, making it a compact yet powerful solution for high-speed counting applications.

9. Reliable OperationThe CJ1W-CT021 operates within an ambient temperature range of 0 to 55 °C and an ambient storage temperature range of -20 to 75 °C. It also supports an operating humidity range of 10% to 90% without condensation, ensuring reliable operation in various environmental conditions.

10. Compatibility with CJ/NJ SeriesThe CJ1W-CT021 is compatible with CJ/NJ-series PLC systems, allowing seamless integration into existing automation setups. It supports up to 24 units per basic CJ/NJ system, making it scalable for large-scale industrial applications.

Maximum Output Frequency

32 bit

Connector type

1 x Fujitsu

Manufacturer ID