1772-LP3 | Allen-Bradley PLC-2/30 Processor Module

The 1772-LP3 is an Allen-Bradley PLC-2/30 central processing unit designed for legacy industrial automation and machine control architectures. Operating on a 120/240 VAC power supply at 50/60 Hz with a 2/1 A current rating, this chassis-mounted processor module manages complex logic sequencing, memory tasks, and system data handling for established manufacturing environments.

Processing Performance and Memory Architecture

The 1772-LP3 processor supports up to 16,256 words of memory capacity, enabling reliable handling of extensive ladder logic programs. It delivers robust execution speeds for relay-type functions, timers, counters, and arithmetic instructions while maintaining compatibility with local and remote 1771 I/O configurations.

Electrical Requirements and Chassis Mounting

Engineered for standard industrial control cabinets, the module requires a 120/240 VAC input source operating at 50/60 Hz. It features an integrated chassis-mount design that secures directly into compatible Allen-Bradley enclosure racks, ensuring mechanical stability and proper grounding in heavy-duty factory settings.

Diagnostics and System Integration

Built-in self-monitoring and diagnostic capabilities provide continuous operational status tracking through front-panel indicators. The module interfaces seamlessly with Data Highway networks and programming terminals, supporting on-line data changes and efficient system diagnostics for maintenance personnel.

Frequently Asked Questions

Q: Is the Allen-Bradley 1772-LP3 processor still actively produced by the manufacturer? A: No, this model has been discontinued by the manufacturer, but tested replacement units remain available through specialized industrial suppliers.

Q: What power supply requirements does this processor module demand? A: The module operates on a 120/240 VAC power source at 50/60 Hz with a 2/1 A current rating within a compatible chassis-mount setup.

Q: Which I/O systems are compatible with the 1772-LP3 unit?A: It is designed to work with Allen-Bradley 1771 local and remote I/O chassis configurations supporting the PLC-2/30 architecture.