HarmonicShield
®
Introduction
10
HSD IOM Manual - Rev. D
Maintenance and Service
HSD Filter Reliability and Service Life
The HSD has been designed to provide a service life that equals or exceeds the life of the VFD. It
has been thoroughly tested at the factory to ensure that it will perform reliably from the time it is
put into service. It is recommended that the following maintenance is performed once a year to
ensure that the HSD filter will always operate reliably and provide the expected service life.
Periodic Maintenance
Warning
Only qualified electricians should carry out all electrical installation and
maintenance work on the HSD filter.
Disconnect all sources of power to the drive and HSD before working on the
equipment. Do not attempt any work on a powered HSD.
Check to see that the installation environment remains free from exposure to excessive dirt and
contaminants. Refer to the
Pre-installation Planning
section of this manual.
Check to make sure that the enclosure ventilation openings are clean and unobstructed.
All electrical connections must be re-torqued annually.
Troubleshooting
Warning
Only qualified electricians should carry out all electrical installation and
maintenance work on the HSD filter.
Disconnect all sources of power to the drive and HSD before working on the
equipment. Do not attempt any work on a powered HSD filter.
The harmonic filter contains high voltages and capacitors. Wait at least five
minutes after disconnecting power from the filter before you attempt to connect
or disconnect the harmonic filter. Check for zero voltage between all terminals.
All work on the HSD must be performed by a qualified electrician. Failure to
follow standard safety procedures may result in death or serious injury.
Note: when disconnecting wires from terminations, mark the wires to correspond to their terminal
connection.
Service
Your HSD has no user serviceable parts. If your HSD requires service, it must be returned to TCI or taken to
an authorized TCI service technician.
Factory Contacts and Tech Support
For technical support, contact your local TCI distributor or sales representative. You can contact TCI
directly at 800-TCI-8282. Select "Customer Service" or "Tech Support" and have your HSD filter
nameplate information available.
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