Honeywell ControlEdge 900 platform, Hardware Planning And Installation Manual, Page: 155 / 230

CHAPTER
7
MAINTENANCE
This section contains procedures for removing and replacing the
active components of a ControlEdge 900 Controller. It also includes
recommendations, suggestions, and hints as they apply to the
circumstances under which the procedures are used.
Safety considerations - PLAN AHEAD!
When using the procedures in this section, plan the sequence of
procedural actions so as to ensure:
n
The safety of personnel
n
The protection of property
n
The integrity of operating processes
CAUTION: The first consideration is safety of personnel. While
there is always an inclination to preserve the materials and time
invested in a running process, no action should ever be taken that
would risk injury to personnel.
Protection of personnel property is an important consideration that
always requires comprehensive knowledge of the entire control
process: the control equipment, the process control strategy, and the
conditions and circumstances that exist when the removal and
replacement procedures are taken.
The procedures in this section include notices of potential hazard as
they apply to various components in the controller. Because each
control process and the set of conditions and circumstances at each
user site are unique, it is the user's responsibility to know the potential
consequences of each action as it relates to a running process.
It is recommended that the user becomes familiar with the significant
aspects of each set of circumstances and has a plan for execution of
the proper action sequence.
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