PrefaceP–2
Publication 1336 IMPACT-6.2 – March 1998
!
ATTENTION: Potentially fatal voltages may result
from improper usage of oscilloscope and other test
equipment. The oscilloscope chassis may be at a
potentially fatal voltage if not properly grounded. If an
oscilloscope is used to measure high voltage
waveforms, use only a dual channel oscilloscope in the
differential mode with X 100 probes. It is
recommended that the oscilloscope be used in the A
minus B Quasi-differential mode with the oscilloscope
chassis correctly grounded to an earth ground.
!
ATTENTION: Only personnel familiar with the
1336 IMPACT Adjustable Frequency AC Drive and
associated machinery should plan or implement the
installation, start-up and subsequent maintenance of the
system. Failure to comply may result in personal injury
and/or equipment damage.
!
ATTENTION: This assembly contains parts and
sub-assemblies that are sensitive to electrostatic
discharge. Static control precautions are required when
servicing this assembly. Component damage may result
if you ignore electrostatic discharge control procedures.
If you are not familiar with static control procedures,
reference Rockwell Automation Publication
8000-4.5.2, Guarding Against Electrostatic Damage, or
any other applicable ESD protection handbook.
Electrostatic discharge generated by static electricity can damage the
complementary metallic oxide semiconductor devices on various
drive boards. It is recommended that you perform these procedures
to guard against this type of damage when circuit boards are
removed or installed:
• Wear a wrist-type grounding strap that is grounded to the drive
chassis.
• Attach the wrist strap before removing the new circuit board from
the conductive packet.
• Remove boards from the drive and immediately insert them into
their conductive packets.
Electrostatic Discharge
Precautions
AB Spares
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