User manual

AC Adjustable Frequency Drives
Important Safety and Product Information
161
5.3 Repair
If equipment condition indicates repair or replacement, the
manufacturer's instruction manual should be followed carefully.
Diagnostic information within such a manual should be used to
identify the probable source of the problem, and to formulate a
repair plan. The level of field repair recommended by the
manufacturer should be followed.
When solid state equipment is repaired, it is important that any
replacement part be in accordance with the recommendations of
the equipment manufacturer. Care should be taken to avoid the use
of parts which are no longer compatible with other changes in the
equipment. Also, replacement parts should be inspected for
deterioration due to "shelf life" and for signs of rework or wear,
which may involve factors critical to safety.
After repair, proper start-up procedures should be followed.
Special precautions should be taken to protect personnel from
hazards during start-up.
5.4 Safety Recommendations for
Maintenance Personnel
All maintenance work should be done by qualified personnel
familiar with the construction, operation, and hazards involved
with the equipment. The appropriate work practices of NFPA 70E
should be followed.
Product Compliance
Product Compliance Information
For your quick reference, product certification information can be
found at www
.ab.com/certification. Actual product certification is
indicated by the label(s) on the product and not by a listing on this
website or in product literature.
UL Certification
Generally, Rockwell Automation pursues applicable UL
certification for its products. The following are relevant types of
certifications granted by Underwriters Laboratories (UL):
y UL Recognized (UR), or UL Recognized to Canadian (cUR), or
UL Recognized to US and Canadian (cURus) safety
requirements under the Component Recognition Program of
Underwriters Laboratories, Inc. UL Recognition may be for use
in general as well as Hazardous Locations. The UL Recognition
mark for products recognized for use in Hazardous Locations
will be accompanied by the phrase "Industrial Control
Equipment for use in Hazardous Locations" and information
which indicates the nature of the Hazardous Locations. This is
typically "Class I, Division 2 Groups A,B,C,D".
y UL Listed (UL), UL Listed to Canadian (cUL), or UL Listed to
US and Canadian safety standards (cULus). UL Listing may be
for use in general as well as hazardous Locations. The UL Listed
mark for products certified for use in Hazardous Locations will
be accompanied by the phrase "Industrial Control Equipment for
use in Hazardous Locations" and information which indicates
the nature of the Hazardous Locations. This is typically "Class I,
Division 2 Groups A,B,C,D".
Although Rockwell Automation is only using the Class I Division
2 Group A, B, C, D designation on its products, it should be noted
that this hazardous location classification is equivalent to the
internationally defined Class I Zone 2 Group IIC area
classification (see IEC publication 60079-10). Therefore, products
labeled Class I Division 2 Group A, B, C, D may be used in Class
I Zone 2 Group IIC environments.
Actual UL listing is indicated by the marking on the product,
and not by statements in this catalog or any product literature.
C.5.3 Repair [Explanatory Information
(Supplementary Comments - Not part of
NEMA Standards Publication No. ICS 1.1)]
Follow manufacturer's instructions exactly when replacing power
semiconductors mounted on heatsinks since improper installation
may become the source of further difficulties. Torque
semiconductors or bolts retaining semiconductors to the value
specified with a torque wrench. Too much pressure against a
heatsink can damage a semiconductor, while too little can restrict
the amount of heat transferred from the semiconductor to the
heatsink, resulting in operation at higher temperature with
decreased reliability.
Exercise care when removing modules from a system during
maintenance. Failed modules are frequently returned to the
manufacturer for repair. Any physical damage sustained during
removal may result in more expensive repair or render the module
unrepairable if damage is too great.
Modules with electrostatic sensitive components should be
handled by the edges without touching components or printed
circuit conductors. Use packaging material supplied with the
replacement module when shipping the module to the
manufacturer for repair.
When the scope of repairs exceeds the manufacturer's
recommendations for field repair, the module(s) should be
returned to the manufacturer for repair. Doing so will help to
ensure that only properly selected components are used and that
all necessary hardware and firmware revisions are incorporated
into the repair. Failure to make necessary updates may result in
safety, compatibility, or performance problems, which may not
become apparent for some time after the repaired module has been
placed back in service. When firmware is protected by copyright
law, updates can be provided legally only by the manufacturer or
licensee.