The Allen‑Bradley 1762‑L40AWA is a versatile MicroLogix 1200 series programmable logic controller designed for small to medium‑sized automation tasks. This controller offers a total of 40 embedded I/O channels, combining 24 AC inputs and 16 relay outputs in a single compact unit. Its 120/240V AC power supply makes it suitable for global applications. The 1762‑L40AWA supports multiple communication protocols, enabling seamless integration with HMIs, SCADA systems, and other network devices. Manufacturing plants, packaging lines, and material handling systems commonly use this reliable controller.
The 1762‑L40AWA delivers robust performance across various industrial environments. Its input circuit operates at 120 Volts AC , while the output circuit uses relay contacts rated for 24‑125VDC and 120‑240VAC . The relay outputs can handle a load current of 10A minimum and endure up to 20 million mechanical cycles .
Input Details
For inputs 0 through 3, the on‑state voltage ranges from 14 to 24 Volts DC , while inputs 4 and above require 10 to 24 Volts DC . The off‑state voltage stays between 0 and 5 Volts DC , and the minimum off‑state leakage current is 1.5 mA . This design ensures reliable signal detection from sensors and switches.
Power Supply
The controller draws 82 VA of power and accepts an input frequency of 47 to 63 Hertz . Inrush current reaches 25A for 8 ms at 120V AC and 40A for 4 ms at 240V AC . Therefore, users should size circuit breakers accordingly to avoid nuisance tripping.
The 1762‑L40AWA includes one 8‑pin mini‑DIN serial port for programming and communication. This port supports DF1 , DH‑485 , ASCII , and Modbus protocols, both master and slave modes. Consequently, you can connect this PLC to a wide range of devices, including operator panels, variable frequency drives, and remote I/O racks. Uploading and downloading user programs occurs quickly through this interface.
Additionally, two trim potentiometers are located on the front panel. These allow simulation of internal registers or local adjustment of process variables using a precision screwdriver. This feature proves particularly useful during commissioning and troubleshooting.
The 1762‑L40AWA measures 90 mm in height (104 mm with DIN latch open), 160 mm in width , and 87 mm in depth . It operates within an ambient temperature range of 0 to 55 degrees Celsius . The controller mounts easily on a standard DIN rail or panel. Shipping weight is 2.4 pounds , making handling and installation straightforward.
Proper installation ensures reliable operation and long service life. First, mount the controller on a DIN rail or panel in a clean, dry location. Next, connect the AC power supply to the designated terminals, observing proper polarity and grounding. Then, wire input devices such as push buttons, limit switches, and proximity sensors to the input terminals. Connect output loads such as contactors, solenoids, and indicator lights to the relay output terminals.
Furthermore, pay close attention to the current per group common rating of 8 Amps . Exceeding this limit may damage the 1762‑L40AWA or connected equipment. Therefore, distribute loads evenly across output groups. Additionally, use proper fusing or circuit protection for each output circuit. Finally, connect the communication cable to the 8‑pin mini‑DIN port and configure the protocol settings in your programming software.
The shipment includes the following items:
One Allen‑Bradley 1762‑L40AWA MicroLogix 1200 controller
One 8‑pin mini‑DIN communication cable (length may vary)
Removable terminal blocks for I/O connections
DIN rail mounting clips
Product documentation and quick start guide
All components ship in original factory packaging. The controller arrives ready for installation and configuration.
We ship all orders via FedEx , UPS , or DHL with tracking numbers provided. Domestic deliveries typically take 2 to 5 business days. International shipments usually arrive within 5 to 10 business days depending on customs clearance. Every package includes proper anti‑static and shock‑absorbent protection. Please inspect the box upon arrival and report any damage immediately.
Q1: What software is required to program the 1762‑L40AWA?
Rockwell Automation's RSLogix 500 or CCW (Connected Components Workbench) software is used to program the 1762‑L40AWA . Both support ladder logic programming and online monitoring.
Q2: Can the 1762‑L40AWA communicate with a third‑party HMI?
Yes, the 1762‑L40AWA supports Modbus protocol over its serial port. Therefore, it can communicate with most HMIs that support Modbus RTU.
Q3: What is the maximum output load current per point?
Each relay output can handle up to 10A minimum at 24‑125VDC or 120‑240VAC. However, the total current per group common must not exceed 8 Amps .
Q4: Does the controller retain its program during a power loss?
Yes, the 1762‑L40AWA uses non‑volatile EEPROM memory to retain the user program. No battery backup is required for program retention.
Q5: Is this controller suitable for high‑vibration environments?
The 1762‑L40AWA is rated for typical industrial vibration levels. For extreme vibration, we recommend using additional shock mounts or panel mounting instead of DIN rail.
| Brand Name | |
| Model No. | 1762-L40AWA |
| Product Type | Programmable Controller |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
