Allen-Bradley 1794-IE8H, User Manual, Page: 48 / 146

Publication 1794-UM063A-EN-P - March 2006
3-2 Install Your FLEX I/O Analog Modules
Removal and Insertion
Under Power
Install the Module
Installation of the analog module consists of the following.
•
Mounting the terminal base unit.
•
Installing the analog I/O module into the terminal base unit.
•
Installing the connecting wiring to the terminal base unit.
If you are installing your module into a terminal base unit that is already
installed, proceed to “Mount the Analog Modules on the Terminal Base” on
3-7.
WARNING
These module are designed so you can remove and insert them
under power. However, take special care when removing or
inserting these modules in an active process. I/O attached to
any module being removed or inserted can change states due to
its input/output signal changing conditions.
If you insert or remove the terminal base while backplane
power is on, an electrical arc can occur. This could cause an
explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous
before proceeding.
WARNING
When used in a class I, division 2, hazardous location, this
equipment must be mounted in a suitable enclosure with proper
wiring method that complies with the governing electrical
codes.
ATTENTION ATTENTION
Do not use the unused terminals on the terminal base unit.
Using the terminals as supporting terminals can result in
damage to modules and/or unintended operation of your
system.