Rockwell Automation 1756-DMF30 ControlLogix Drive Module - Manual (Page 28)

Publication 1756-UM522B-EN-P - February 2003
3-2 Drive Module Features
Removal and Insertion Under Power (RIUP)
All ControlLogix Drive modules may be removed and inserted from
the chassis while power is applied. This feature allows greater
availability of the overall control system because, while the module is
being removed or inserted, there is no additional disruption to the rest
of the controlled process.
Module Fault Reporting
ControlLogix Drive modules provide both hardware and software
indication when a module fault has occurred. Each module’s LED fault
indicator as well as DriveExecutive and RSLogix 5000 will graphically
display this fault and include a fault message describing the nature of
the fault.
This feature allows you to determine how your module has been
affected and what action should be taken to resume normal
operation.
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.
ATTENTION
!
The removal of a Drive Module while under power
may cause personal injury or property damage. Make
sure that removal of the module does not adversely
impact other parts of the system.
IMPORTANT
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.