Lenze TCF Series - Manual (Page 13)

6 INSTALLATION
NOTE
TCF Series drives are intended for inclusion within other equipment, by
professional electrical installers according to EN 61000-3-2 . The TCF drive
is not intended for stand-alone operation
WARNING!
Drives must
NOT be installed where subjected to adverse environmental
conditions such as: combustible, oily, or hazardous vapors or dust; excessive
moisture or dirt; vibration; excessive ambient temperatures . Consult Lenze-
AC Tech for more information on the suitability of a drive to a particular
environment .
TCF models are suitable for UL pollution degree 2 environment only, and MUST be installed
in an electrical enclosure which will provide complete mechanical protection and will maintain
the internal temperature within the drive’s ambient operating temperature rating . All drive
models MUST be mounted in a vertical position for proper heatsink cooling .
Maintain a minimum spacing around the drive of at least 1 inch (25 mm) on each side and 2
inches (50 mm) on the top and bottom for units rated up to 5 HP (3 .7 kW) . For units rated 7 .5
- 10 HP (5 .5 - 7 .5 kW), maintain at least 2 inches (50 mm) on each side and 4 inches (100
mm) on the top and bottom . Allow more spacing if the drive is mounted next to other heat-
producing equipment . Do not mount drives above other drives or heat producing equipment .
Fans or blowers should be used to insure proper cooling in tight quarters .
In order to properly size an enclosure, the heat generated by the drive(s) must be known .
Refer to the HEAT LOSS column in Section 5 - TCF RATINGS . An enclosure manufacturer
can then determine the required enclosure size based on the total heat generated inside the
enclosure (from the drive(s) and other heat sources), the maximum allowable temperature
inside the enclosure, the maximum ambient temperature outside the enclosure, and the
enclosure properties .
The TCF Series is UL approved for solid state motor overload protection . Therefore, a
separate thermal overload relay is not required for single motor applications .
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