12
Installation Checks
• Environmental Concerns
– Clean and Dry
– 24-Hour temperature limit – page 214
– Altitude Limits – page 214
The VLT 5000 can be supplied with a NEMA 1(IP 20) or NEMA 12(IP 54) enclosure. These
enclosures provides some degree of protection from falling dust. Therefore, drives with a
NEMA 1(IP 20) and 12(IP 54) enclosures should be mounted indoors in a relatively clean
and dry location.
Because the drive relies on the ambient air for cooling, it is important to observe the
limitations on ambient air temperature and elevation. Contact the Service Department if you
think that the mounting location of the drive compromises its ability to provide long term,
reliable operation. Charts for temperature and elevation are found near the back of the
instruction manual in the “List of Functions” section.
Temperature equivalents
Heights equivalents
30°C = 86°F 1kM = 3300 feet
35°C = 95°F 2kM = 6600 feet
40°C = 104°F 3kM = 10,000 feet
45°C = 113°F Enclosure equivalents
50°C = 122°F IP 00 = chassis
55°C = 131°F IP 20, 21 = NEMA 1
60°C = 140°F IP 54 = NEMA 12
65°C = 149°F IP 65 = NEMA 4
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