
Allen-Bradley 1762-L40AWA MicroLogix 1200 Controller
Product Summary
The Allen-Bradley 1762-L40AWA MicroLogix 1200 provides a robust 40-point I/O solution. This controller handles 120VAC inputs and relay outputs for demanding applications. Its integrated communication port supports DF1, DH-485, ASCII, and Modbus protocols.
Product Procurement & User Guide
The 1762-L40AWA offers a powerful blend of digital inputs and relay outputs. It includes exactly 24 input channels rated at 120 Volts AC. These inputs offer a flexible on-state voltage range from 14 to 24 Volts DC.
The controller also provides sixteen relay outputs for load control. Each relay contact easily handles up to 10 Amps of load current. This module controls a maximum load of 1440 VA.

A single 8-pin mini-DIN serial port sits on the front panel. This port supports DF1, DH-485, ASCII, and MODBUS protocols. Engineers use this port to connect to HMI and SCADA systems.
Two trim potentiometers allow for local process variable adjustment. You can simulate internal registers using these front-panel controls. A precision screwdriver adjusts the potentiometers for fine tuning.
The controller requires an external 100-240VAC power supply. The power supply usage is rated at 82 VA for normal operation. It handles an inrush current of 25 A for 8 ms at 120VAC.
Step-by-Step Installation Guide

Mount the 1762-L40AWA on a standard DIN rail for secure installation. The dimensions allow for easy placement in tight control panels. The depth is 87 mm with a width of 160 mm.
Wire the 24 AC inputs using the appropriate terminal connections. Ensure the off-state voltage stays between 0 and 5 Volts DC. The on-state voltage must remain between 14 and 24 Volts DC for inputs 0-3.
Connect the sixteen relay outputs to control your field devices. The relay contact rating covers 24-125VDC and 120-240VAC. Make sure the output load does not exceed 8 Amps per group common.
Use the mini-DIN port to download your user program. This controller also supports DH-485 and Modbus for network communication. The operating frequency ranges from 47 to 63 Hertz.

The unit operates in ambient temperatures from 0 to 55 degrees Celsius. The shipping weight for this controller is 2.4 pounds. The mechanical cycles rating for the relays is 20,000,000 operations.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley MicroLogix 1200 controller
- One (1) 8-pin mini-DIN communication port connector
- One (1) product documentation quick start guide
- Express delivery shipping is available via FedEx, UPS, and DHL.