Allen-Bradley 1747-L30A SLC 500 Fixed Controller Module

Product Overview

The Allen-Bradley 1747-L30A is a powerful fixed controller module designed for the SLC 500 Modular Hardware System. It integrates a processor, power supply, and I/O interface in a single compact unit, ideal for small to mid-sized industrial control applications.

Operating between 85–265V AC at 47–63 Hz, the 1747-L30A provides reliable performance in demanding environments. With 18 integrated 120V AC inputs and 12 AC/DC relay outputs, it supports a total of 30 I/O points, allowing flexible automation configurations. The built-in DH485 communication port ensures seamless connectivity with other SLC 500 components and HMI systems.

The module’s capacitor-backed RAM and optional EEPROM or UVPROM memory offer flexible data retention options, safeguarding critical control programs during power interruptions. Its 1K instruction capacity supports efficient program execution, making it an excellent choice for manufacturing, material handling, and utility automation.

Technical Specifications

Key Features

• All-in-One Controller: Combines processor, power supply, and I/O in one unit for space efficiency.

• Flexible I/O Design: Supports 18 AC inputs and 12 relay outputs for versatile applications.

• Reliable Power Range: Operates across 120–240V AC, accommodating various industrial systems.

• High Signal Integrity: Offers 1500V AC isolation for stable and safe operation.

• Expandable Configuration: Supports expansion chassis for up to 64 I/O points.

• Durable Construction: Functions reliably within 0–60°C ambient temperature range.

• Programmable Memory: 1K instruction capacity with capacitor-backed RAM and memory backup options.

Performance and Design

The Allen-Bradley 1747-L30A excels in performance consistency and operational safety. It delivers an on-state voltage range of 85–132V AC, ensuring strong input signal reliability. The module features a maximum turn-on time of 35 milliseconds and turn-off time of 45 milliseconds, maintaining precise control timing.

With a typical scan rate of 8 ms per 1K instructions, the 1747-L30A executes logic swiftly for real-time process control. Its built-in program scan hold-up time of up to 700 milliseconds ensures stable operations during transient power conditions.

Applications

The 1747-L30A Fixed Controller is ideal for:

• Automated manufacturing lines requiring fast, reliable control.

• Material handling systems with mixed AC/DC output demands.

• Utilities and HVAC systems needing stable operation under varied loads.

• Educational and training environments for PLC programming.

FAQs

Q1: Can the Allen-Bradley 1747-L30A support expansion I/O modules?
Yes, it supports expansion chassis, allowing up to 64 I/O points when additional modules are added.

Q2: What communication protocol does the 1747-L30A use?
The controller uses the DH485 protocol for stable communication with other Allen-Bradley devices.

Q3: How long does it take to ship the 1747-L30A?
We ship within 3 days to 2 weeks, depending on order size and shipping method (DHL, FedEx, etc.).

Q4: Are these modules brand new and original?
Yes, every Allen-Bradley 1747-L30A we sell is 100% new, original, and factory-sealed.

Q5: What is the return policy for quality issues?
If there is any quality issue, we provide a 30-day return window for full support and replacement.