A-B 1756-A4

A-B  1756-A4   ControlLogix 4 Slots Chassis

Product Overview
The ControlLogix* system is a modular system that requires a1756ControlLogix chassis.The chassis are designed for only horizontal back-panel mounting.Place any module into any slot. The backplane provides a high-speed communication path between modules.
Install the Chassis

ATTENTION:Chassis are shipped with a paper debris label attached to the top side. Leave the debris label in place during chassis installation.After installation,remove the debris label from the top of the chassis. Failure to remove this label will affect thermal performance, cause components to overheat, and result in damage to the system.
Chassis are intended to be mounted only horizontally. Do not mount vertically.
1. Drill holes in the back panel of the enclosure for the chassis mounting tabs.
2. Scrape paint off the back panel for an electrical connection between the chassis and back panel.
3.Hold the chassis in place against the holes.
ATTENTION: If the chassis mounting tabs do not lay flat before the screws are tightened, use additional washers as shims so the chassis isn't warped by tightening the screws.
Warping a chassis can damage the backplane and cause intermittent operation.
4. Install the hardware for the top mounting tabs and tighten.See Parts Required on page 5 for more information.
5. Install the remaining tab screws, but leave the leftmost bottom tab open for the functional ground.

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