TCI HGP - Manual (Page 11)

S T A N D A R D O P T I O N ( S )
Standard Option (S) HGP IOM Manual 11
Maintenance and Service
HGP Filter Reliability and Service Life
The HGP 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 assure that it will perform reliably from the time it is put into
service. It is recommended that the following maintenance be done once a year to ensure that the
HGP filter will always perform reliably and provide the expected service life.
Periodic Maintenance
Warning
Only qualified electricians should carry out all electrical installation and
maintenance work on the HGP filter.
Disconnect all sources of power to the drive and HGP before working on the
equipment. Do not attempt any work on a powered HGP.
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.
Clean the air filter in units that have filtered air inlets. Clean as often as necessary to prevent dirt build-
up from impeding air flow.
Check the operation of the cooling fan.
Inspect the interior of the enclosure for signs of overheated components. Clean the interior of the
enclosure whenever excess dirt has accumulated.
Torque all power wire connections, loose connections can overheat and damage the filter.
All electrical connections must be re-torqued annually.
Troubleshooting
Warning Only qualified electricians should carry out all electrical installation and
maintenance work on the HGP filter.
Disconnect all sources of power to the drive and HGP before working on the
equipment. Do not attempt any work on a powered HGP filter.
The harmonic filter contains high voltages and capacitors. Wait at least five
minutes after disconnecting power from the filter before you attempt to
service the harmonic filter. Check for zero voltage between all terminals on
the capacitors. Also, check for zero voltage between all phases of the line side
of the fuses, Fu1(a)–Fu2(a)–Fu3(a), and all input terminals L1, L2 and L3 of
the line reactor (KDR). All setup, maintenance, and troubleshooting must be
done by a qualified electrician. Failure to follow standard safety procedures
may result in death or serious injury.
Note: when disconnecting wires from components and terminations, mark the wires to correspond to
their component and terminal connection.
Replacement Parts
If replacement parts are needed, please contact your TCI representative. To ensure that the HGP filter
continues to perform to its original specifications, replacement parts should conform to TCI
specifications.