Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules - Manual (Page 122)

122 Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
Chapter 6 Install ControlLogix I/O Modules
Install the Removable
Terminal Block This section shows how to install the RTB onto the module to connect the
wiring.
Before installing the RTB, make certain of the following:
• Field-side wiring of the RTB has been completed
• RTB housing is snapped into place on the RTB
• RTB housing door is closed
• The locking tab at the top of the module is unlocked
1. Align the top, bottom and left side guides of the RTB with the guides on
the module.
2. Press quickly and evenly to seat the RTB on the module until the latches
snap into place.
WARNING: When you connect or disconnect the Removable Terminal Block
(RTB) with field side power applied, 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: Shock hazard exists. If the RTB is installed onto the module
while the field-side power is applied, the RTB 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. It is recommended that field-side power be
removed before installing the RTB onto the module.
Top Guide
Bottom Guide
20853-M