Allen-Bradley 1756-A7 7 Slot ControlLogix Chassis

Product Overview

The Allen-Bradley 1756-A7 is a 7-slot ControlLogix chassis. It connects modules to the backplane. This unit is small and compact. It has four mounting tabs for easy installation. The chassis supports slim and standard power supplies. It offers a functional earth ground terminal. The protective earth ground terminal is also included. Use an 8 AWG copper wire for functional ground. Use a 14 AWG wire for protective ground. The wire rating must be 90 °C or higher. This chassis works in harsh industrial environments.

Application Scenarios

Use the 1756-A7 in factory automation systems. It works well in process control applications. This chassis is ideal for discrete manufacturing. It supports complex machine control tasks. Use it in material handling systems. It fits into packaging machinery setups. The chassis is suitable for oil and gas operations. It also works in water treatment plants. This unit handles high-speed production lines.

Technical Specifications

The 1756-A7 has seven module slots. It provides backplane current at multiple voltages. At 1.2 VDC, it supplies 1.5 A. At 3.3 VDC, it supplies 4 A. At 5.1 VDC, it supplies 15 A for the chassis. The slot gets 6 A at 5.1 VDC. At 24 VDC, it supplies 2.8 A. The maximum power dissipation is 4.5 Watts. The operating temperature range is 0 to 60 °C. The storage temperature is -40 to 85 °C. The chassis weighs 2.4 pounds. Its dimensions are 20 x 24 x 8 inches. The enclosure type is open. The shock rating is 30 G when operating. The non-operating shock rating is 50 G.

Installation & Maintenance Guide

Mount the chassis on a flat subpanel. Use the four mounting tabs for secure attachment. Install the power supply on the left side. Connect the functional earth ground first. Use an 8 AWG copper wire for this. Then connect the protective earth ground. Use a 14 AWG copper wire for this. Ensure wires have a 90 °C rating. Slide modules into the slots carefully. Secure modules with SEM screws if needed. Keep the chassis area clean and dry. Check connections regularly for tightness. Monitor the operating temperature range. Replace any damaged parts immediately.

Packing List

One Allen-Bradley 1756-A7 chassis. This includes the backplane assembly. The unit has four mounting tabs. No power supply is included. No modules are included. The package weighs 2.4 pounds. Shipping dimensions are 20 x 24 x 8 inches. We ship via FedEx, UPS, or DHL. Choose your preferred carrier at checkout.