Rockwell Automation 1756-OF8I ControlLogix Eight-channel Isolated Analog I/O Modules - Manual (Page 118)

118 Rockwell Automation Publication 1756-UM540A-EN-P - May 2014
Chapter 6 Install ControlLogix Isolated Analog I/O Modules
2. Press quickly and evenly to seat the RTB on the module until the latches
snap into place.
3. Slide the locking tab down to lock the RTB onto the module.
Remove the Removable
Terminal Block If you need to remove the module from the chassis, you must first remove the
RTB from the module.
20854-M
WARNING: When you insert or remove the module 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.
Repeated electrical arcing causes excessive wear to contacts on both module and
its mating connector. Worn contacts can create electrical resistance that can affect
module operation.
ATTENTION: Shock hazard exists. If the RTB is removed from the module
while the field-side power is applied, the module will be electrically live. Do not
touch the RTB’s terminals. Failure to observe this caution may cause personal
injury.
The RTB is designed to support Removal and Insertion Under Power (RIUP).
However, when you remove or insert an RTB with field-side power applied,
unintended machine motion or loss of process control can occur. Exercise extreme
caution when using this feature. We recommend that field-side power be removed
before removing the module.