OVERVIEW

Official designation: Allen-Bradley 1775-WA (PLC-3, Terminal Swing Arm)

Role/Application: The 1775-WA is a terminal swing arm connector for I/O scanner modules (1775-S4A or 1775-S4B) in the PLC-3 system, providing connectivity for I/O and peer-to-peer communication channels.

KEY SPECS SUMMARY

Power: Not directly applicable; passive device

Interfaces / Ports: Twinaxial cable, I/O scanner module connector

Indicators: None (passive terminal)

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: PLC-3 system, 1775-S4A, 1775-S4B scanners

Limit: Max twinaxial cable length 10,000 feet

Lifecycle: Discontinued/Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the confirmed voltage and maximum current rating of the 1775-WA swing arm terminal?

A: The terminal's maximum voltage and current ratings are not published; refer to the latest manufacturer manual.

Wiring & Installation:

Q: Which wire gauge range is compatible with the screw terminals on the 1775-WA swing arm?

A: Refer to the latest manufacturer manual.

Troubleshooting & Compatibility:

Q: Is the 1775-WA terminal compatible with all PLC-3 I/O scanner modules for peer-to-peer connection?

A: For peer-to-peer connection, the 1775-WA is only compatible with the 1775-S4A I/O scanner module.

Replacement & Upgrades:

Q: What is the recommended upgrade path for the obsolete Allen-Bradley PLC-3 platform components like the 1775-WA?

A: The standard migration path for the legacy PLC-3 platform is conversion to the ControlLogix automation platform.