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Allen Bradley 1769-IA16

Allen Bradley 1769-IA16

If you are currently looking for a small-sized module for your CompactLogix controller in the factory, which can provide 16 digital input points and also save rack space? Feimu Technology presents this Allen Bradley 1769-IA16 to you, and it is undoubtedly the perfect choice for you.

Feimu Technology, as a professional supplier, focuses on the supply of industrial automation components. For factory CompactLogix controllers, it has launched the Allen Bradley 1769-IA16 digital input module, which is specifically designed for scenarios that require 16 digital inputs and save rack space. It is an ideal adapter component for small and medium-sized control devices. This product is an original Allen Bradley module. Its core function is to convert the signals from on-site switches and sensors into a language that the PLC controller can understand, meeting the needs of most small and medium-sized control devices.

Compact structure design


The internal structure design of Allen Bradley 1769-IA16 is reasonable. The circuit board layout is neat, the electronic components are arranged orderly, the solder joints are thick and shiny, and the stability is obvious. It is more reassuring to use. The equipment is equipped with the classic 1761 bus interface at the bottom, with a thickened gold pin design, which can effectively ensure good contact with the back panel, avoid contact failure caused by oxidation, and reduce potential faults.

Allen Bradley is small in size, only the width of a single slot. Installing it in the control cabinet can significantly save space, making wiring more convenient, and making the internal layout of the control cabinet more tidy, avoiding congestion and disorder. Our supplied products are all of brand new quality, strictly controlling Quality, eliminating various problems of refurbished items from the source, and ensuring long-term stable operation.


Anti-interference without delay


The Allen Bradley 1769-IA16 supports 120V AC input signals and has extremely strong anti-interference capabilities. It can adapt to the strong electrical interference environment around factory site wires, accurately distinguish between real signals and interference signals, and will not falsely report signals to the controller, ensuring the precision of equipment control. At the same time, the module response speed is extremely fast. After the on/off switch is closed on-site, the controller can receive the signal instantly, with almost no delay.

This rapid response ensures that the equipment can react promptly, effectively avoiding safety accidents caused by signal delay. It is suitable for various small and medium-sized industrial scenarios with high sensitivity requirements for signals, and is also compatible with Factory industrial control cabinets. Installation is convenient, no additional modification is required, and it can reduce construction costs.


Easy disassembly and assembly, easy troubleshooting


The most attractive feature of Allen Bradley 1769-IA16 is the detachable terminal blocks. When replacing the module, simply pull out the terminal block, remove the old module, insert the new module, and re-fix the terminal block. The replacement can be completed in just a few seconds, significantly reducing equipment downtime and improving maintenance efficiency.

In addition, the modules are equipped with LED indicator lights. Each input point corresponds to an indicator light. When there is a signal input, the indicator light will turn on. During troubleshooting, no complex operations are required. Just by looking at the indicator lights, the problem can be quickly located, significantly reducing the difficulty of troubleshooting and saving labor costs.


FAQ


On which system is the module used?

The Allen-Bradley 1769 Compact I/O™ series is mainly used in the CompactLogix™ control system and can be used in conjunction with the MicroLogix 1500 system.


How are the 16 input points of the module grouped?

The 16 input points are configured as a separate group and share an internal connected common, all input points are connected to the same common terminal (COM).


Can it work independently?

No. It has no CPU and must be installed on the backplane of CompactLogix (such as 1769-L30ER, etc.) or MicroLogix 1500 system and communicates with the controller through the backplane bus.


Can the terminal block (RTB) be plugged in or unplugged while powered on?

Hot swapping of the module is supported. It is recommended to disconnect the system power and the on-site power before removing the terminal block or the module. The terminal block (RTB) is fixed by two screws on the top and bottom. When replacing the module, simply loosen the screws and pull it out, no rewiring is required.



Purchase with Double Convenience


The Allen Bradley is of sturdy construction and requires no complex maintenance on a daily basis. Just be careful to prevent iron filings from falling into the terminal blocks and causing a short circuit. Regularly blow out the dust to keep it clean. In case of a malfunction, it is mostly due to the terminal block burning out or the optocoupler being damaged. You can purchase the terminal block separately for replacement, without discarding the entire module, effectively reducing maintenance costs. Be careful not to bend the bottom pins when plugging or unplugging, and never touch the conductive parts directly with your hands to prevent oxidation of the gold pins by sweat on your hands.

Feimu Technology, as a powerful supplier, has a complete inventory management system. The Allen Bradley 1769-IA16 is in Stock and available for immediate supply, responding quickly to customers' urgent purchasing needs. The product offers a favorable Price and high Cost-effectiveness. We adhere to reasonable pricing, eliminate middle links, and provide high-quality products at highly competitive prices.


Comparison – 1769-IA16 vs 1769-IQ16

Feature 1769-IA16 1769-IQ16
Input type AC input DC input
Input voltage 120V AC 24V DC
Input current 12mA 4mA
Input delay 8ms 0.5ms to 10ms (configurable)
Best for AC sensors, limit switches DC sensors, high-speed inputs

How to choose:

  • Use 1769-IA16: For AC sensors, limit switches, and push buttons with 120V AC power.
  • Use 1769-IQ16: For DC sensors, photoelectric sensors, and high-speed counting applications.

Wiring Guide – AC Input Connections

The 1769-IA16 uses a removable terminal block. The 16 inputs share a common terminal.

Terminal assignment:

  • Terminals 0-15: Input channels 0-15.
  • Terminal 16: Common (AC COM) for all inputs.
  • Terminal 17: Not used.
  • Terminal 18: Not used.
  • Terminal 19: Not used.

Wiring rules:

  • Use 120V AC power supply. Do not connect DC power to inputs.
  • Connect the AC hot wire to the input terminal.
  • Connect the AC neutral to the common (AC COM) terminal.
  • Wire gauge: 0.5mm² to 1.5mm² (22 to 16 AWG).
  • Strip length: 8mm.
  • Torque: 0.5Nm.

Common wiring mistake: Connecting 24V DC to the input. The 1769-IA16 requires 120V AC. 24V DC will not be recognized and will appear as OFF in the PLC program.

Status LEDs and Troubleshooting

The 1769-IA16 has one diagnostic LED for each of the 16 input channels. The LEDs are visible on the front panel when the module is installed.

LED Status Meaning Action
Channel LED Green Input is ON (voltage above 85V AC). No action needed.
Channel LED Off Input is OFF (voltage below 20V AC). No action needed. Signal absent.

Troubleshooting checklist:

  • If the LED is ON but the PLC program shows OFF: Check that the module is correctly added to the I/O configuration. Check that the controller is reading the correct slot.
  • If the LED is OFF but the field device appears to be on: Check the field device voltage. It must be between 85V and 132V AC. Check the wiring from the device to the input terminal.
  • If all 16 inputs show no response: Check that the module is properly inserted into the backplane. Check that the CompactLogix power supply is working.

Product Authenticity Verification

Allen Bradley 1769-IA16 modules are commonly counterfeited. Use these checks to verify authenticity.

  • Front panel color: Genuine modules use a specific beige-gray color consistent with the CompactLogix family. Counterfeits often have a different shade or glossy finish.
  • Label quality: Genuine labels have permanent printing with the model number 1769-IA16 clearly visible. Counterfeit labels often have blurry text or peel at edges.
  • Terminal block: Genuine terminal blocks are green and removable. Screws turn smoothly. Counterfeits often use cheap plastic with screws that stick or strip.
  • Bus connector: All pins on the 1769 bus connector must be gold-plated and straight. Counterfeits often use tin pins or have bent pins.
  • Module weight: Genuine 1769-IA16 weighs approximately 0.1 kg. Counterfeits often feel lighter.

If the module shows incorrect readings or the LEDs behave abnormally, suspect a counterfeit. Contact Feimu Technology with photos for verification.

Testing Before Shipment

Feimu Technology does not ship untested modules. Each 1769-IA16 goes through the following verification process before leaving our warehouse.

  • Visual inspection: Panel color checked. Labels verified. Terminal block screws inspected. Bus connector checked for bent pins.
  • Backplane test: Module inserted into CompactLogix test chassis. Module recognized by the controller.
  • Input test: All 16 inputs tested with a 120V AC signal source. Each input confirmed to turn ON and OFF correctly.
  • LED test: All 16 channel LEDs checked for correct operation.
  • Packaging: Module placed in anti-static bag. Sealed in foam-lined carton. Labeled with module number and test date.

Test reports are available upon request. Email sales@feimutech.com for a copy of your module's test report.

About Feimu Technology

Feimu Technology started in Jiangmen, Guangdong in 2005. We supply original Allen Bradley, Siemens, GE, and Schneider components to customers in over 30 countries.

  • CompactLogix module expertise: We have supplied 1769 series modules for over a decade. We know the platform.
  • Functional testing: Every module is tested in a running CompactLogix system before shipment.
  • Stock reliability: We keep common 1769 modules in stock. Emergency replacements ship the same day.
  • Practical support: Our team can help with wiring, addressing, and troubleshooting.

Contact us:
Email: sales@feimutech.com
WhatsApp: +86 13358323579
Website: www.feimuplc.com
Response time: Within 24 hours. Technical questions typically answered within 12 hours.

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