Omron

Omron CJ1W-CT021 CJ1 Series High-speed Counter Unit

SKU CJ1W-CT021

Disponibile
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Omron
  • Product No.: CJ1W-CT021
  • Origin Japan
  • Product Type: High-speed Counter Units
  • Payment: T/T, Western Union
  • Weight: 0.1 kg
  • Dimensions: 31 mm x 90 mm x 65 mm
  • Shipping port: Xiamen
  • Warranty: 12 months

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Product Description

Description

To address demanding industrial applications requiring precise position and speed tracking, the CJ1W-CT021 high-speed counter module offers high-performance pulse detection for Omron CJ-series and NJ-series PLC systems. This module is designed to interface directly with incremental rotary encoders or linear scales, processing fast input pulses independently of the PLC CPU cycle time.

The unit features dual independent counting channels capable of handling high-frequency signals. It processes count operations, frequency measurement, and rotational speed calculation directly on-board, ensuring deterministic control for motion tracking, packaging machinery, and positioning tasks.

Features

  • Dual independent high-speed counter channels.
  • Accepts input pulse frequencies up to 500 kHz for high-resolution encoder feedback.
  • Fast response time of 0.5 ms for rapid output activation based on counter comparison values.
  • Direct integration into Omron CJ1 and NJ series controller backplanes.
  • Low internal power consumption of 280 mA at 5 VDC.

Applications

  • Rotary encoder interface for servo and stepper positioning systems.
  • Web tensioning and material length measurement in packaging and printing lines.
  • Cut-to-length and flying shear control.
  • High-accuracy speed monitoring in material handling and conveyor networks.

Technical Specifications

Manufacturer Omron
Part Number / Model CJ1W-CT021
Module Type High-speed Counter Unit
Number of Counters 2
Maximum Input Frequency 500 kHz
Maximum Response Time 0.5 ms
Internal Current Consumption 280 mA (at 5 VDC)
Maximum Current Consumption 370 mA (at 5 VDC)
Ambient Operating Temperature 0 to 55 degC
Dimensions (W x H x D) 31 mm x 90 mm x 65 mm
Weight 0.1 kg

Installation Guidelines

When installing the counter unit, ensure it is locked securely onto the CJ1/NJ bus connector. To prevent electrical noise interference on high-frequency signals, always use shielded twisted-pair cabling for all encoder connections and ensure the shield is grounded at the PLC end. Route signal lines away from high-voltage AC power lines and variable frequency drives.

Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

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 technical warranty.
FAQ
What is the maximum input frequency of the Omron CJ1W-CT021?
The Omron CJ1W-CT021 supports a maximum input pulse frequency of up to 500 kHz.
How many counter channels does the CJ1W-CT021 module provide?
This high-speed counter module features 2 independent counter channels.
Is the CJ1W-CT021 compatible with Omron NJ controllers?
Yes, the CJ1W-CT021 is compatible with both CJ-series and NJ-series PLC and automation controllers.
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CJ1W-CT021

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Omron CJ1W-CT021 CJ1 Series High-speed Counter Unit

Only 2 item(s) left in stock
  • Manufacturer: Omron

  • Product No.: CJ1W-CT021

  • Country of origin:Japan

  • Product Type: High-speed Counter Units

  • Payment: T/T, Western Union

  • Weight: 100g

  • Dimensions: 31 mm x 90 mm x 65 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantità
Visualizza dettagli completi

Product Description

Description

To address demanding industrial applications requiring precise position and speed tracking, the CJ1W-CT021 high-speed counter module offers high-performance pulse detection for Omron CJ-series and NJ-series PLC systems. This module is designed to interface directly with incremental rotary encoders or linear scales, processing fast input pulses independently of the PLC CPU cycle time.

The unit features dual independent counting channels capable of handling high-frequency signals. It processes count operations, frequency measurement, and rotational speed calculation directly on-board, ensuring deterministic control for motion tracking, packaging machinery, and positioning tasks.

Features

  • Dual independent high-speed counter channels.
  • Accepts input pulse frequencies up to 500 kHz for high-resolution encoder feedback.
  • Fast response time of 0.5 ms for rapid output activation based on counter comparison values.
  • Direct integration into Omron CJ1 and NJ series controller backplanes.
  • Low internal power consumption of 280 mA at 5 VDC.

Applications

  • Rotary encoder interface for servo and stepper positioning systems.
  • Web tensioning and material length measurement in packaging and printing lines.
  • Cut-to-length and flying shear control.
  • High-accuracy speed monitoring in material handling and conveyor networks.

Technical Specifications

Manufacturer Omron
Part Number / Model CJ1W-CT021
Module Type High-speed Counter Unit
Number of Counters 2
Maximum Input Frequency 500 kHz
Maximum Response Time 0.5 ms
Internal Current Consumption 280 mA (at 5 VDC)
Maximum Current Consumption 370 mA (at 5 VDC)
Ambient Operating Temperature 0 to 55 degC
Dimensions (W x H x D) 31 mm x 90 mm x 65 mm
Weight 0.1 kg

Installation Guidelines

When installing the counter unit, ensure it is locked securely onto the CJ1/NJ bus connector. To prevent electrical noise interference on high-frequency signals, always use shielded twisted-pair cabling for all encoder connections and ensure the shield is grounded at the PLC end. Route signal lines away from high-voltage AC power lines and variable frequency drives.

What is the maximum input frequency of the Omron CJ1W-CT021?

The Omron CJ1W-CT021 supports a maximum input pulse frequency of up to 500 kHz.

How many counter channels does the CJ1W-CT021 module provide?

This high-speed counter module features 2 independent counter channels.

Is the CJ1W-CT021 compatible with Omron NJ controllers?

Yes, the CJ1W-CT021 is compatible with both CJ-series and NJ-series PLC and automation controllers.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

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
Japan

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