INTRODUCTION
WBPEEUI240752A0
6 - 1
SECTION 6 - MAINTENANCE
INTRODUCTION
The reliability of any stand-alone product or control system is
affected by the maintenance of the equipment. Elsag Bailey
recommends that all equipment users practice a preventive
maintenance program that will keep the equipment operating
at an optimum level.
This section presents procedures that the customer should be
able to perform on site. These preventive maintenance proce-
dures should be used as a guideline to assist in establishing
good preventive maintenance practices.
Personnel performing preventive maintenance should meet the
following qualifications.
•
Maintenance personnel should be qualified electrical tech-
nicians or engineers that know the proper use of test
equipment.
•
Maintenance personnel should be familiar with the module
mounting unit, have experience working with process con-
trol systems, and know what precautions to take when
working on live AC and/or DC systems.
PREVENTIVE MAINTENANCE SCHEDULE
Table
is the preventive maintenance schedule for the digi-
tal input module. The table lists the preventive maintenance
tasks in groups according to their specified maintenance inter-
val. Instructions for tasks that require further explanation are
covered under
PREVENTIVE MAINTENANCE PROCEDURES
.
NOTE: The preventive maintenance schedule is for general pur-
poses only. Your application may require special attention.
EQUIPMENT AND TOOLS REQUIRED
The tools and equipment required for maintenance procedures
are:
•
Antistatic vacuum.
•
Screwdriver (medium length).
•
Isopryl alcohol (99.5 percent electronic grade).
•
Distilled water.
•
Compressed air.
•
Foam tipped swabs.
•
Lint free cloths.
