Prepare The Chassis; Remove The Controller From The Chassis, If Required - AB Quality 1756-ENBT ControlLogix Installation Instructions Manual

12 ControlLogix® Controller and Memory Board

Prepare the Chassis

Before you install a controller, do these preliminary steps:
Install a ControlLogix chassis.
✓
Install a ControlLogix power supply.
✓

Remove the Controller from the Chassis, If Required

You can install or remove a controller while chassis power is on and
the system is operating. If you remove the controller, all the devices
owned by the controller go to their configured fault state.
When you insert or remove the module while backplane
WARNING
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 module and its mating connector. Worn contacts may create
electrical resistance that can affect module operation.
1. On the top and bottom of the controller, press the locking
tabs.
2. Slide the controller out of the chassis.
Publication
1756-IN101J-EN-P - November 2004
20880