Why Choose the 1762-L24BWA for Your Compact Automation Needs?
Struggling to fit a powerful yet space-saving controller into your small-scale automation setup? The Allen-Bradley 1762-L24BWA MicroLogix 1200 controller delivers robust performance in a compact form, integrating power supply, I/O, and communication ports into one unit. This module simplifies wiring and reduces panel space, making it ideal for applications where every inch counts.
Product Overview
The 1762-L24BWA is a 24-point controller module from Allen-Bradley, part of the MicroLogix 1200 series. It features fourteen (14) digital inputs compatible with 24 Volts DC, supporting both sinking and sourcing wiring configurations, and ten (10) relay outputs. This controller is powered by an integrated supply accepting 120 to 240 Volts AC. It supports DIN Rail or Panel Mounting, offering flexibility for various enclosure designs.
Technical Specifications Breakdown
Key parameters for the 1762-L24BWA are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Input Power | 120 to 240 Volts AC |
| Part Number | 1762-L24BWA |
| Inputs | 10 rated at 24 Volts DC and 4 Fast rated at 24 Volts DC |
| Outputs | 10 Relay |
| No. of Inputs | Fourteen (14) |
| Input Circuit Type | 24 Volts DC Sink/Source |
| No. of Outputs | Ten (10) |
| Output Circuit Type | Relay |
| Relay Contact Rating | 24-125VDC; 120-240VAC |
| Mechanical Cycles | 20,000,000 |
| Dimensions | Height: 90 mm, 104 mm (with DIN latch open) Width: 110 mm Depth: 87 mm |
| Load Current | 10A, minimum |
| Shipping Weight | 2 pounds |
| Ambient Operating Temp | 0 to 55 degrees Celsius |
| Heat Dissipation | 15.7 W |
| Power supply inrush current | 120V ac: 25A for 8 ms; 240V ac: 40A for 4 ms |
Industry Applications
This controller excels in small to medium-sized automation tasks. For example, in packaging lines, its 14 digital inputs can monitor sensors and limit switches, while the 10 relay outputs control actuators or conveyors. In HVAC systems, the module manages temperature and pressure signals, with relay outputs driving fans or dampers. The compact design reduces panel space, lowering overall installation costs.
Installation & Setup Guidance
Mount the controller using DIN Rail or direct panel mounting via provided slots. Ensure the ambient operating temperature stays between 0 and 55 degrees Celsius to maintain reliability. Before wiring, disconnect all power to avoid electrical arcs that can damage contacts. The integrated RS232 communication port supports protocols like DH485 and Modbus, enabling connection to HMIs or SCADA systems.
Maintenance & Reliability
With a mechanical relay lifespan of 20,000,000 cycles, the output relays offer long-term durability. The heat dissipation of 15.7 W requires adequate ventilation in the enclosure. Inspect wiring periodically for wear, especially in high-vibration environments. The controller's compact form and robust design minimize maintenance needs.
Compatibility & Integration
The 1762-L24BWA supports expansion I/O modules to enhance its native features. The integrated RS232 port communicates via DH485, DF1, Modbus Master/Slave, and ASCII protocols. For networked setups, use an external interface converter like the 1761-NET-AIC. This flexibility allows integration into existing control architectures.
Selection Guide & Purchasing Advice
When selecting this controller, verify the input power matches your facility's supply (120 to 240 Volts AC). The 24 Volts DC sink/source inputs suit a wide range of sensors. For relay outputs, ensure the load current does not exceed 10A minimum. Contact SpareTechPLC to confirm current lifecycle status and availability before ordering.
Troubleshooting & Common Issues
If the controller fails to power up, check the input power supply and inrush current limits (25A for 8 ms at 120V AC; 40A for 4 ms at 240V AC). For relay output issues, verify the relay contact rating (24-125VDC; 120-240VAC) matches the load. If communication fails, confirm the RS232 port settings and protocol selection.
Please verify current lifecycle status and availability with SpareTechPLC before ordering.
