Purchase now: Allen-Bradley 1761-L16AWA MicroLogix 1000 PLC
Atlantechdrives provides you the 1761-L16AWA, a compact and reliable 16-point programmable logic controller from the MicroLogix 1000 family. This specific model is designed for 120/240V AC input power and features relay outputs, making it the ideal «all-in-one» solution for small machine control and basic automation tasks where simplicity and durability are paramount.
- Input Power: 120/240V AC
- Total I/O: 16 Points
- Inputs: 10 AC Inputs (120V AC)
- Outputs: 6 Relay Outputs (Individually isolated)
- Memory: 1K EEPROM (approx. 80-100 instructions)
Technical Performance: The MicroLogix 1000 Workhorse
The 1761-L16AWA is engineered for applications where space is limited but industrial reliability cannot be compromised. It features a robust multitasking operating system that handles discrete logic with millisecond precision. The AC-powered design eliminates the need for an external 24V DC power supply, simplifying cabinet wiring and reducing overall system cost. The 6 relay outputs are capable of switching both AC and DC loads, providing maximum flexibility for controlling motor starters, solenoids, and indicators. Despite its small size, the 1761-L16AWA supports a dedicated RS-232 serial port for communication with HMIs and SCADA systems via the DF1 or DH-485 protocols, ensuring your small-scale automation remains connected to the plant floor.
Installation Advice: Wiring for AC Power and Relay Safety
When installing the 1761-L16AWA, ensure that the AC input power is properly fused to protect the internal circuitry. Use at least 14 AWG wire for the power terminals. Since this module uses relay outputs, it is critical to use surge suppression (RC snubbers for AC loads or flyback diodes for DC loads) when switching inductive devices. This prevents electrical arcing from damaging the relay contacts over time. For the 120V AC inputs, ensure that the neutral and hot wires are correctly identified to prevent ground-loop noise that could cause false input triggers. The 1761-L16AWA is a non-expandable unit, so ensure that your I/O count will not need to grow beyond the 16 points provided before finalizing your cabinet design.
Maintenance and Legacy Support
The 1761-L16AWA is a «maintenance-free» controller as it uses non-volatile EEPROM memory that does not require a battery for program retention. However, regular inspection of the relay contacts and terminal block screws is recommended. If you notice a «Fault» LED, use the 1761-CBL-PM02 cable to connect with RSLogix 500 and check the error codes. As this product line is in the legacy phase, sourcing authentic, tested units from Atlantechdrives is the best way to keep your older machinery running without the high risk and downtime of a modern system migration. Keeping a spare 1761-L16AWA is a strategic move for any facility with a large installed base of MicroLogix 1000 hardware.
FAQs
Q: Does the 1761-L16AWA require a battery?
A: No, the program is stored in permanent EEPROM memory, ensuring logic retention even during long-term power loss.
Q: Can I add more I/O to this controller?
A: No, the MicroLogix 1000 series (including the L16AWA) has a fixed I/O count and does not support expansion modules.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
This compact 16-point controller is an ideal standalone solution; for network expansion, consider adding the 1761-NET-AIC Advanced Interface Converter.
