37
CAUTION: The modules available for use in Experion have an
RIUP designation. That is, they can be Removed and Inserted
Under Power, where "power" refers to DC power at the backplane
of the rack. (It does
not
refer to power for field wiring at the
terminal board associated with the I/O module, which
must
be
disconnected (using a user-supplied switch) at the field device
before removing or inserting the module.
For all other components of the system, AC power to the system
must be removed before removal or replacement of the
component.
Removal and Insertion Under Power (RIUP)
CAUTION: Read and understand all of the following information
regarding RIUP before attempting to remove and/or replace the
redundant controller or expansion I/O, particularly in a system
that is actively controlling a process.
Experion System That is, while the system is powered, any of the
controllers or expansion I/O can be removed or inserted:
l
With no physical damage to the controller, to the expansion
I/O, or to the other modules in the system
l
Without disturbing the functions of the controllers or
expansion I/O in the system.
Under carefully controlled circumstances, this feature enables
the user to remove and insert a controller or an expansion I/O
module without completely shutting down a running system.
However, it must be recognized that removing or inserting it
under power is potentially hazardous to property and to
personnel.
CAUTION: :Explosion hazard. RIUP is not supported in Division 2/
Zone 2 Hazardous locations.
Replacing a CN100 Controller
In a system with redundant CN100 controllers, when the primary
controller fails, the backup controller takes over. And the original one
becomes the secondary NAM. The secondary NAM should be
replaced.
Chapter 5 - Maintenance
Summary of Contents for CN100
Page 8: ...8 Chapter 2 Overview ...
Page 16: ...16 Chapter 3 Hardware Components ...
Page 42: ...42 Chapter 5 Maintenance ...
Page 50: ...50 Chapter 6 Diagnostics and Troubleshooting ...
