Installation Instructions User guide

Publication 1756-IN571B-EN-P - April 2001

Installing or Removing the Module Under Power

You can install or remove the module while chassis power is applied

if you observe the following precautions.

WARNING

When you insert or remove a module while

backplane power is on, an electrical arc may

occur. An electrical arc can cause personal injury

or property damage by:

• sending an erroneous signal to your system's

actuators causing unintended machine

motion or loss of process control.

• causing an explosion in a hazardous

environment.

Repeated electrical arcing causes excessive wear

to contacts on both the module and its mating

connector. Worn contacts may create electrical

resistance that can affect module operation.