Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 115)

Rockwell Automation Publication 7760-UM001D-EN-P - October 2014 115
Chapter
9
Maintenance
Safety and Preventative The Maintenance Technician should become familiar with the layout and be
aware of the basic system parameters. Only qualified technicians should be
allowed to work with this equipment under competent supervision.
General housekeeping is the key to maintaining power electronic and electrical
equipment. They are to be kept as dust free as possible. A scheduled program of
inspection will reduce the possibility of problems.
Periodic Inspection Note: For OEM-supplied components, refer to documentation provided by the
OEM for recommended periodic maintenance procedures.
Industrial control equipment should be inspected periodically. Inspection
intervals should be based on environmental and operating conditions, and
adjusted as indicated by experience. An initial inspection, within 3 or 4 months
after installation, is suggested. Applicable parts of the following guidelines should
be used:
Contamination
If inspection reveals that dust, moisture or other contamination has reached the
control equipment, the source must be eliminated. This could indicate an
incorrect or ineffective enclosure, unsealed enclosure openings (conduit or other)
or incorrect operating procedures. Dirty, wet or contaminated parts must be
replaced unless they can be cleaned effectively by vacuuming or wiping.
ATTENTION: Servicing energized industrial control equipment can be
hazardous. Severe injury or death can result from electrical shock, burn, or
unintended actuation of controlled equipment. Recommended practice is to
disconnect and lock out control equipment from power sources, and allow any
stored energy in capacitors to dissipate. If it is necessary to work in the vicinity
of energized equipment, the safety related work practices of NFPA 70E,
Electrical Safety Requirements for Employee Workplaces, must be followed.