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MAINTENANCE
PREVENTIVE MAINTENANCE SCHEDULE
6 - 2
I-E96-508C
®
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. Select the minimum
steps required to meet the cleaning needs of your system.
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 equip-
ment such as digital multimeters.
•
Maintenance personnel should be familiar with the INFI 90
modular power system, have experience working with pro-
cess control systems, and know what precautions to take
when working on live DC systems.
PREVENTIVE MAINTENANCE SCHEDULE
Table
is the preventive maintenance schedule and check
list for the modular power system. The table lists the preven-
tive maintenance tasks in groups according to their specified
maintenance interval. Some tasks in Table
are self explan-
atory. Instructions for tasks that require further explanation
are covered under
NOTE:
The preventive maintenance schedule list is for general pur-
poses only. Your application may require special attention.
Table 6-1. Preventive Maintenance Schedule
Preventive Maintenance Task
Frequency
Check the cabinet air filters. Clean or replace them as necessary. Check the air filter more
frequently in excessively dirty environments. Refer to procedure.
3 months
Check cabinet for dust. Clean as necessary using an antistatic vacuum.
Check all signal, power and ground connections within the cabinet and verify that they are
secure. Refer to procedure.
Check modular power supply outputs. Refer to procedure.
6 months
Do a visual inspection of the fan assembly. Verify that all fans are rotating and replace if
necessary.
Check the quality of the plant power and grounding system. Follow the power and
grounding system verification procedures in the INFI 90 site preparation and planning
instruction.
12 months
Inspect all control, I/O, and power modules, giving particular attention to power supply
contacts and heat sinks. Clean as necessary. Refer to procedure.
Inspect and check the power entry panel. In high vibration environments inspection may
be necessary at shorter intervals. Refer to procedure.
2 years
Complete all checks and inspections in this table. Replacement tasks should be done at
the scheduled frequency.
Shutdown