VLT
®
Series 3500
105
Electrostatic Discharges
WARNING
!
Many electronic components are sensitive to static
electricity. Even voltages so low that they cannot be felt,
seen or heard may damage components or destroy them
completely.
Discharge of static electricity can damage components,
shorten their life, and cause erratic operation. Suspect
damage due to static electricity if faults occur periodically
with varying temperature, varying load, or vibration.
When performing field service on the VLT Series 3500
drives, the following precautions must be taken:
• A portable ESD service kit, consisting of a metal wrist
strap and a conductive mat, must be used.
• The portable ESD field service kit must be connected
to the same potential as the drive chassis.
• Replaced, defective control cards must be placed in
antistatic packing. The packing from the new card
may be used for this purpose.
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