Product Overview
The Allen-Bradley 1768-L43S Compact GuardLogix controller delivers powerful and scalable control for demanding industrial applications. As part of the Compact GuardLogix product line, this controller integrates standard and safety control in a single, rackless platform, simplifying installation and reducing panel space. With 2 MB standard memory and 0.5 MB safety memory, the 1768-L43S provides ample capacity for complex programs and safety routines.
Technical Specifications
Key parameters of the Allen-Bradley 1768-L43S are detailed below:
| Specification |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number |
1768-L43S |
| Product Line |
Compact GuardLogix |
| Module Type |
Controller |
| Memory |
2 MB |
| Weight |
15.9 ounces |
| Dimensions (HxWxD) |
5.18 x 3.55 x 4.8 inches |
| Series |
A and B |
| Isolation Voltage |
30 Volts Continuous |
| Backplane Current |
1.4 Amps at 24 Volts |
| Power Consumption |
33.6 Watts |
| Power Dissipation |
7.5 Watts |
| UPC |
10612598672186 |
The 1768-L43S operates within a temperature range of 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) and can be stored at temperatures from -4 to 85 degrees Celsius. It withstands relative humidity of 5 to 95% non-condensing, vibration of 5 g at 10 to 500 Hz, and shock of 30 g operating / 50 g non-operating. Its radiated RF immunity is 10 V/m with 1 kHz sine-wave 80% AM from 80 to 2000 MHz.
Key Features & Benefits
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Integrated safety: Combines standard and safety control in one controller, reducing hardware complexity.
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Rackless design: Eliminates the need for a backplane, simplifying installation and reducing cost.
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High memory capacity: 2 MB standard memory plus 0.5 MB safety memory supports complex applications.
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Network readiness: Ideal for systems on EtherNet/IP or ControlNet, enabling flexible communication.
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Security and motion: Built-in security controls and fully-integrated motion capabilities.
Industry Applications
The Allen-Bradley 1768-L43S is well-suited for a wide range of industrial automation tasks, including:
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Packaging machinery: Manage high-speed packaging lines with integrated safety and motion control.
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Material handling: Coordinate conveyors and sortation systems with reliable logic and safety functions.
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Process control: Monitor and control batch processes, ensuring both productivity and operator safety.
Installation & Setup Guidance
When installing the 1768-L43S, follow these guidelines:
- Mount the controller in a suitable enclosure that allows proper airflow and maintains the operating temperature range.
- Ensure the backplane current does not exceed 1.4 Amps at 24 Volts.
- Before connecting or disconnecting serial cables, remove power to avoid electric arcs.
- Use appropriate wiring practices and follow all local electrical codes.
Maintenance & Reliability
To ensure long-term reliability, periodically inspect the controller for dust buildup and verify that ambient conditions stay within specified limits. Check all connections for tightness and signs of wear. The 1768-L43S is designed for continuous operation, and with proper care, it will provide dependable service.
Selection Guide & Purchasing Advice
Before purchasing, verify that the 1768-L43S meets your application requirements, including memory capacity, network protocols, and safety certifications. Confirm compatibility with your existing control system. For genuine Allen-Bradley parts and expert support, consider PLC Source PRO as your trusted supplier.