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Omron CJ1W-CT021

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£310.97 (ex. VAT)

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Marvo Stock ID MV-PK7
HS Code 85371098
SKU CJ1W-CT021
Condition Used
Category PLC Systems
Warranty 12 months
Weight (kg) 2.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00

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Specification & Description

Specification Description
Part Number CJ1W-CT021
Alternative Part Number CJ1WCT021
Manufacturer Omron
Category PLC Systems
Axes 2 axes
Maximum Input Frequency 500 kHz
Input Type Incremental encoder, Line driver (RS-422), Open collector
Output Type NPN, PNP
Number of Input Channels 2
Number of Output Channels 0
I/O Connection Type Screw
Number of I/O Connectors 1
Detachable I/O Connector Yes
Suitable for Safety Functions No
Communication Ports None
Number of IOV (V+) Terminals 2
Number of IOG (V-) Terminals 2
Product Height 95.4 mm
Product Width 31 mm
Product Depth 83.6 mm
Product Weight 94 g
Commodity Code 853710

The Omron CJ1W-CT021 is a high-speed counter module designed to offer precise and rapid counting capabilities for a wide range of industrial applications. This module is adept at handling input from incremental encoders, with support for both RS422 line drivers and open collector inputs. It boasts a remarkable counting speed of up to 500 kHz, making it suitable for high-frequency operations.

Engineered for integration into PLC systems, the CJ1W-CT021 features two independent counting channels, allowing for simultaneous monitoring and processing of different inputs. Its robust construction and solid-state design ensure reliability and longevity in demanding environments.

The module's compact dimensions allow for efficient use of space within control panels, and its screw terminals provide secure and straightforward connections. The Omron CJ1W-CT021 is an ideal solution for applications requiring high-speed event counting, precise position control, and rapid production line monitoring, enhancing the efficiency and accuracy of automated processes.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Frequently Asked Questions

What type of inputs does the High-speed Counter Module support?

The High-speed Counter Module supports incremental encoder inputs, and it is compatible with both RS-422 line driver and open collector outputs.

Can this module be used for safety functions?

No, the High-speed Counter Module is not suitable for safety functions. It is designed for high-speed counting applications.

What is the maximum input frequency the module can handle?

The module can handle a maximum input frequency of 500 kHz, making it suitable for high-speed counting applications.

How many encoder input channels does the module have?

The module is equipped with 2 encoder input channels, allowing it to manage inputs from two separate encoders.

What type of output does the module provide?

The module provides both NPN and PNP digital outputs, offering flexibility for interfacing with various types of external equipment.

How is the module connected to the I/O system?

The module connects to the I/O system via a screw terminal, ensuring secure and reliable connections.

Is the I/O connector on the module detachable?

Yes, the module features a detachable I/O connector, which simplifies installation and maintenance.

What are the dimensions of the module?

The module measures 31 mm in width, 95.4 mm in height, and 83.6 mm in depth, making it compact and suitable for installation in tight spaces.

How many power supply terminals does the module have?

The module has 2 IOV (V+) terminals and 2 IOG (V-) terminals for power supply connections.

What should be considered when installing the module in terms of environmental conditions?

The module should be installed in an environment free from direct sunlight, extreme temperatures, humidity outside the specified range, corrosive or flammable gases, dust, and exposure to water, oil, or chemicals. It should also be protected from shock and vibration.

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Part conditions explained


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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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