OVERVIEW

Official designation: Allen-Bradley 1745-E153 (SLC 150, I/O Expansion Unit)

Role/Application: An I/O expansion unit for the SLC 150 controller, adding 20 current sinking inputs and 12 hard contact relay outputs to extend system control capabilities.

KEY SPECS SUMMARY

Power: 10V DC to 30V DC input

Interfaces / Ports: 20 input, 12 output terminals

Indicators: 20 input status LEDs, one per point

Operating Temp: 0 degrees C to 60 degrees C

Platform / Compatibility: SLC 150, SLC 100 Controller

Limit: 175 milliseconds maximum power loss ride-through

Lifecycle: Discontinued, Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum AC output voltage rating for the hard contact relay circuits?

A: The hard contact relay output circuits are rated to handle up to 250V AC.

Wiring & Installation:

Q: Which communication cable is used to connect the 1745-E153 unit to the SLC 150 processor?

A: The 1745-C3 cable is typically required for the expansion unit connection.

Troubleshooting & Compatibility:

Q: What action should be taken if all input status LEDs fail to illuminate during power up?

A: Check the input voltage source and cable connections between the expansion unit and the processor.

Replacement & Upgrades:

Q: What are the specific dimensions of the 1745-E153 module for cabinet space planning?

A: The module dimensions are approximately 10.25 inches long, 2.75 inches wide, and 6.00 inches high.