2080-LC20-20QBB | Allen-Bradley | Micro820 Programmable Controller

Configured for discrete control in Micro820 platforms, the Allen-Bradley 2080-LC20-20QBB (2080-LC20-20QBB Programmable Controller) provides direct physical and electrical execution of logic tasks utilizing 12 inputs and 8 outputs.

Hardware Specifications

Industrial Control and Deterministic Networks

The 2080-LC20-20QBB utilizes high-speed backplane bus communication to process digital signals with deterministic timing. The controller firmware flash compatibility allows for field updates to the operating system, ensuring that scan cycle performance and I/O density scaling requirements remain aligned with current application logic. The architecture supports internal integration of standard and high-speed outputs, facilitating precise control over machine movements within the specified 20.4-26.4 VDC input range.

Frequently Asked Questions

Q: Does the 2080-LC20-20QBB support expansion modules?

A: Yes. The Micro820 controller architecture permits the addition of plug-in modules to expand local I/O capacity. Users must verify the power budget of the base unit before adding expansion hardware.

Q: Is the controller capable of hot-swapping under power?

A: No. The 2080-LC20-20QBB must be disconnected from the power supply and all field wiring before removal from the DIN rail to prevent electrical damage to the controller circuitry or communication ports.

Field Installation Guidelines

• Mounting: Secure the controller on a 35 mm DIN rail within an IP20-rated enclosure. Maintain required clearances to allow for proper thermal dissipation, as the unit is rated for T4 temperature code operations.
• Wiring: Utilize Category 2 shielded cables or stranded copper conductors for signal, power, and communication ports. Ensure terminal connections are tightened to prevent high-resistance paths that could lead to voltage drops.
• Grounding: Bond the controller chassis to the cabinet earth ground. A low-impedance ground connection is required to provide electromagnetic compatibility and to ensure the signal integrity of the 24 VDC inputs.
• Cabling Constraints: Keep signal wiring separated from high-voltage AC lines to prevent induced electrical noise from impacting the controller inputs. Use designated wireways to maintain physical isolation.