Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 56)

Publication 1797-6.5.3 - March 2006
3-4 How to Install Your FLEX Ex Analog Modules
Removal and Insertion
Under Power
Install the Module Installation of the analog module consists of:
• 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 Mounting the Analog Modules on the Terminal Base on
3-9.
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.
ATTENTION
Make certain that you power this terminal base module
combination with an instrinsically safe power supply. Do not
exceed the values listed in the specifications for the terminal base
or module.
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.