Maximum altitude above sea level without derating
3,280 ft./1,000 m.
Derating for high altitude, see special conditions in the Design Guide.
EMC standards, Emission
EN 61800-3, EN 61000-6-3/4, EN 55011
EMC standards, Immunity
EN 61800-3, EN 61000-6-1/2,
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
See section on special conditions in the Design Guide
Protection and Features:
•
Electronic thermal motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the adjustable frequency drive trips if the
temperature reaches 203°F ± 9°F [95°C ± 5°C]. An overload temperature cannot be reset until
the temperature of the heatsink is below 158°F ± 9°F [70°C ± 5°C] (Guideline - these temper-
atures may vary for different power sizes, enclosures, etc.).
•
The adjustable frequency drive is protected against short-circuits in motor terminals U, V, W.
•
If a line phase is missing, the adjustable frequency drive trips or issues a warning (depending on
the load).
•
Monitoring of the intermediate circuit voltage ensures that the adjustable frequency drive trips if
the intermediate circuit voltage is too low or too high.
•
The adjustable frequency drive constantly checks for critical internal temperature levels, load
current, high voltage on the intermediate circuit and low motor speeds. As a response to a critical
level, the adjustable frequency drive can adjust the switching frequency and/ or change the
switching pattern in order to ensure the performance of the drive.
VLT
®
AutomationDrive FC 300 Instruction Manual
General
Specifications
MG.33.A8.22 - VLT
®
is a registered Danfoss trademark.
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