Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 42)

42 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 2 Install the 1756-L6x Controller
Insert the Controller
into the Chassis When installing a ControlLogix controller, you can do the following:
• Place the controller in any slot.
• Use multiple controllers in the same chassis.
You can install a ControlLogix controller while chassis power is on and the
system is operating.
Complete these steps to insert the controller into the chassis.
1. Insert the key into the controller.
2. Turn the key to the PROG position.
3. Align the circuit board with the top and bottom guides in the chassis.
4. Slide the module into the chassis.
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 the controller
and its mating connector on the chassis. Worn contacts may create electrical
resistance that can affect controller operation.
ATTENTION: Prevent Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which can cause internal
damage and affect normal operation. Follow these guidelines when you handle
this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
ATTENTION: If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment can be impaired.