Rockwell Automation 1398-DDM-xxx ULTRA 100 Series Drives Installation Manual - Manual (Page 28)

Publication 1398-5.2 – PDF 1997
1-2 Safety
Voltage Potentials
Voltage potentials for the internal drive circuitry vary from 325 Volts
above to 325 Volts below earth ground for a 240 Volt input. Voltages
can reach 450 VDC within the drive. All circuits, including the
connections on the front panel, should be considered “hot” when
power is connected and for the time specified in the warning on the
front of the drive after power is removed.
Your Responsibilities
As the user or person installing this drive, you are responsible for
determining the suitability of the product for the intended application.
Rockwell Automation is neither responsible nor liable for indirect or
consequential damage resulting from the inappropriate use of this
product.
A qualified person is someone who is familiar with all safety notes
and established safety practices, with the installation, operation and
maintenance of this equipment and the hazards involved. For more
detailed definitions, refer to IEC 364.
It is recommended that anyone who operates or maintains electrical or
mechanical equipment should have a basic knowledge of First Aid. As
a minimum, they should know where the First Aid equipment is kept
and the identity of the trained First Responders in the facility.
Safety notes do not represent a complete list of the steps necessary to
ensure safe operation of the equipment. If you wish further
information, please contact the nearest distributor of Rockwell
Automation products.
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Intro
ATTENTION: DC bus capacitors may retain hazardous
voltages for several minutes after input power has been
removed, but will normally discharge in several seconds.
Measure the DC bus voltage to verify it has reached a safe
level each time power is removed before working on the
drive; or wait for the time indicated in the warning on the
front of the drive. Failure to observe this precaution could
result in severe bodily injury or loss of life.