Allen-Bradley 1745-LP157 SLC 150 Controller Module

The Allen-Bradley 1745-LP157 is an integrated SLC 150 programmable logic controller unit engineered for small-scale industrial automation and standalone machine control applications. Designed to operate on a 18-30 VDC power supply, this processor combines processing logic, fixed I/O points, and power distribution into a single compact housing weighing 1.35 kg.

I/O Configuration and Electrical Characteristics

The unit features a pre-configured, fixed hardware layout containing 32 total I/O channels to accommodate diverse field devices:

• DC Inputs: 20 digital inputs operating within a 10-50 VDC voltage range.
• DC Outputs: 10 digital outputs rated for 10-50 VDC switching.
• Relay Outputs: 2 hard contact relay outputs capable of switching loads rated at 10-250 VAC or 10-125 VDC.

This hybrid output setup allows high-speed electronic switching via standard DC outputs while providing isolated dry contacts for auxiliary AC or high-voltage DC control loops.

Technical Specifications

Frequently Asked Questions

Q: What power source is required to operate the Allen-Bradley 1745-LP157 controller? A: The controller requires a direct current power supply operating within the 18-30 VDC range.

Q: Can the 1745-LP157 switch both AC and DC load circuits directly? A: Yes. It includes 10 DC outputs (10-50 VDC) for standard DC loads alongside 2 hard contact relay outputs capable of handling up to 250 VAC or 125 VDC.