1756-L72K Allen-Bradley ControlLogix Logix5572 Processor Stock
Manufacturer: Allen-Bradley
Product No.: 1756-L72K
Condition： In stock
Product Type: Processor Module
Product Origin: USA
Payment: T/T, Western Union
Weight: 340g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The Allen-Bradley / Rockwell Automation 1756-L72K is a Logix5572 series programmable automation controller. It features high-capacity processing power for demanding industrial applications. Factory conformal coating protects internal electronic components from airborne contaminants and harsh environments. The module provides 4MB user memory and 0.98MB dedicated I/O memory.
Technical Specifications
| Parameter Category | Technical Specification Details |
|---|---|
| Brand | Allen-Bradley / Rockwell Automation |
| Product Series | ControlLogix System |
| Part Number | 1756-L72K |
| Module Type | Logix5572 Programmable Controller (Conformally Coated) |
| User Memory | 4 MB |
| Dedicated I/O Memory | 0.98 MB |
| Max Digital I/O Points | 128,000 points |
| Max Analog I/O Points | 4,000 points |
| Integrated Motion Axes | Supports up to 100 motion axes |
| Local Programming Port | 1 USB 2.0 Full-Speed Port (12 Mbps) |
| Non-Volatile Storage | Secure Digital (SD) Card Option |
| Backplane Current Draw | 5 mA @ +1.2 VDC, 800 mA @ +5.1 VDC |
| Power & Thermal Dissipation | 2.5 Watts power dissipation, 8.5 BTU/hr thermal load |
| Isolation Voltage Rating | 30 Volts continuous isolation |
| Energy Storage Module | 1756-ESMCAP Capacitor Pack (No lithium battery needed) |
| Enclosure Type | Open-style chassis mounting |
System Compatibility and Integration
The 1756-L72K mounts into any slot of a standard ControlLogix chassis. It coordinates communications across EtherNet/IP, ControlNet, DeviceNet, DH+, and Remote I/O networks using bridge modules. The CPU supports Studio 5000 Logix Designer software for multi-discipline control configuration.
Installation and Mounting Guidelines
Turn off backplane power before inserting the module. Seat the 1756-L72K firmly into the chassis backplane until locking tabs snap shut. Connect the front USB port for temporary programming connections. Ensure proper chassis grounding to maintain noise immunity in industrial environments.
Diagnostic Capabilities and Operational Status
Front-panel status displays offer detailed real-time diagnostic information. The 4-character scrolling display shows fault codes, controller modes, and firmware status. Technicians can analyze system health remotely using Studio 5000 diagnostic tables without halting process execution.
Suitable Equipment and Application Scenarios
- High-speed multi-axis motion control in automated packaging facilities.
- Continuous process control in chemical plants with corrosive atmospheric conditions.
- Large-scale material handling systems utilizing complex EtherNet/IP topologies.
- Centralized supervisory control in automotive body welding skids.
Global PLC Spare HUB's Insight
In a tire manufacturing facility, high humidity and chemical vapors caused frequent failures on standard control boards. Retrofitting the line with the conformally coated 1756-L72K eliminated board corrosion completely. During installation, remember to transfer the Secure Digital card from your old CPU to restore system logic rapidly without a computer connection. Always replace the capacitor energy module (1756-ESMCAP) if status LEDs indicate energy storage fault.
Selection and Purchasing Guide
Choose the 1756-L72K when your application requires 4MB user memory and conformal coating protection. If your equipment operates in clean room environments without corrosive gases, standard non-coated processor models may be evaluated. Always confirm required motion axis counts prior to selecting your CPU model.
Certifications, Package Contents, and 12-Month Warranty
Each order includes one factory-sealed Allen-Bradley 1756-L72K CPU module with installed capacitor module and SD card. Units comply with CE, UL, and cULus safety directives. Purchases are backed by a comprehensive 12-month replacement warranty covering technical defects.
Shipping and Express Delivery Terms
Orders process rapidly and dispatch within 24 to 48 hours following payment confirmation. Global express delivery is managed via FedEx, UPS, or DHL. Air express tracking details dispatch automatically upon carrier pickup.
Frequently Asked Questions (FAQ)
Q: What does the "K" suffix indicate in the 1756-L72K part number?
A: The "K" suffix specifies factory conformal coating to protect internal circuitry against harsh gases and moisture.
Q: Does the 1756-L72K controller require a lithium battery for memory backup?
A: No, it utilizes a 1756-ESMCAP energy storage capacitor module and SD memory card to preserve data.
Q: How many motion axes can the 1756-L72K processor coordinate simultaneously?
A: The controller supports up to 100 integrated motion axes over industrial networks.
Q: What local interface port is available for direct programming connections?
A: The module features one USB 2.0 full-speed port (12 Mbps) on the front panel for programming access.
Q: Can field technicians swap memory cards without re-downloading project files?
A: Yes, loading the project from an SD card restores user logic automatically upon power-up.
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Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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