OVERVIEW

Official designation: Allen-Bradley 1747-L30A (SLC 500, Controller Module)

The 1747-L30A is a fixed style SLC 5/01 controller that integrates a CPU with 1000 instruction capacity, 18 120V AC inputs, and 12 relay outputs. It is self-powered via 120V or 240V AC and includes a DH-485 communication port.

KEY SPECS SUMMARY

Power: 120/240V AC, 60 VA max

Interfaces / Ports: 8-pin mini DIN (DH-485)

Indicators: Run, Fault, Force, BATT, Comm

Operating Temp: 0 to 60 degrees C

Platform / Compatibility: SLC 500 fixed style chassis

Limit: 1K instruction memory

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the rated switching capacity for each of the 12 AC/DC relay outputs on the 1747-L30A?

A: Each relay output is rated to switch a maximum continuous current of 2.0 A.

Wiring & Installation:

Q: What power source voltage is required to operate the Allen-Bradley 1747-L30A controller module?

A: The controller requires 120V AC or 240V AC input power to operate the CPU and I/O.

Troubleshooting & Compatibility:

Q: How can system faults be diagnosed if the Fault indicator is active on the 1747-L30A controller?

A: System faults are diagnosed by viewing the processor error codes through the programming software via DH-485.

Replacement & Upgrades:

Q: Is the 1747-L30A fixed controller compatible with the standard modular 1746 I/O expansion rack?

A: No, the 1747-L30A is a fixed controller and does not support external 1746 modular I/O chassis expansion.