Allen-Bradley 1762-L40BWAR MicroLogix 1200 PLC Controller

Product Overview

The Allen-Bradley 1762-L40BWAR is a MicroLogix 1200 Programmable Logic Controller from Rockwell Automation. This controller combines twenty standard 24VDC inputs, four fast 24VDC inputs, and sixteen relay outputs. It includes an embedded 8-pin mini-DIN communication port supporting DF1, DH-485, ASCII, and MODBUS protocols. A separate programming port on the left side allows simultaneous programming and communication. The 1762-L40BWAR operates on 120 to 240 Volts AC input power with an 82 VA power supply usage.

This controller provides 600 mA at 5VDC and 500 mA at 24VDC for internal logic and I/O. It also delivers up to 400 mA of sensor power at 24VDC. The input circuit type is 24 VDC sink/source, and the output circuit type is relay with contact ratings up to 125VDC or 240VAC. The heat dissipation is 22 Watts. The 1762-L40BWAR has agency certifications including UL 508 and CSA C22.2 No. 142, making it suitable for Class I, Division 2 hazardous locations.

Application Scenarios

This controller fits small to medium automation tasks such as packaging machinery, material handling, conveyor systems, and process control. The fast inputs handle high-speed counting or encoder feedback. The relay outputs switch AC or DC loads up to 10A. The embedded communication ports connect to HMIs, SCADA systems, or other controllers. Typical applications include batch processing, pump control, and simple motion control in industrial environments.

Technical Specifications

• Inputs: 20 standard 24VDC (sink/source) + 4 fast 24VDC (channels 0-3)
• Outputs: 16 relay, contact rating 24-125VDC / 120-240VAC, 10A max, 20 million mechanical cycles
• Power Supply: 120-240VAC, 47-63 Hz, 82 VA, inrush 25A @120VAC (8ms) / 40A @240VAC (4ms)
• Communication: 1x 8-pin mini-DIN serial port (primary) + 1x programming port (8-pin mini-DIN)
• Protocols: DF1, DH-485, ASCII, MODBUS
• Ambient Temp: 0 to 55°C operating; -40 to 85°C storage
• Dimensions: 90mm H (104mm with latch), 160mm W, 87mm D
• Weight: 2.4 lbs

Installation & Maintenance Guide

Mount the 1762-L40BWAR on a DIN rail or panel. Ensure adequate ventilation and ambient temperature between 0 and 55°C. Connect 120-240VAC power to the dedicated terminals. Wire inputs as sink or source per the user manual. For relay outputs, observe maximum voltage and current limits. Use the 8-pin mini-DIN cable for programming or communication. The COM of the sensor supply is internally connected to chassis ground; do not use the 24VDC sensor power for output circuits. Regularly inspect connections and replace damaged wiring. Refer to the official Rockwell Automation manual for detailed installation and troubleshooting.

Packing List

• 1 x Allen-Bradley 1762-L40BWAR MicroLogix 1200 PLC
• 1 x User Manual (documentation CD or printed)
• 1 x 8-pin mini-DIN communication cable
• 1 x Terminal blocks (pre-installed)
• 1 x Mounting brackets and hardware

Shipping is handled via FedEx, UPS, or DHL.