Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual page 79

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VLT AutomationDrive FC 300 Operating
Instructions
Temperature during storage/transport
Maximum altitude above sea level without derating
Derating for high altitude, see special conditions in the Design Guide
EMC standards, Emission
EMC standards, Immunity
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 frequency converter trips if the temperature reaches a predefined level. An overload
temperature cannot be reset until the temperature of the heatsink is below the values stated in the tables on the following pages (Guideline -
these temperatures may vary for different power sizes, enclosures etc.).
• The frequency converter is protected against short-circuits on motor terminals U, V, W.
• If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
• Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit voltage is too low or too high.
• The frequency converter constantly checks for critical levels of internal temperature, load current, high voltage on the intermediate circuit and
low motor speeds. As a response to a critical level, the frequency converter can adjust the switching frequency and/ or change the switching
pattern in order to ensure the performance of the drive.
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
MG.33.AB.02 - VLT is a registered Danfoss trademark
5. General Specifications
-25 - +65/70 °C
1000 m
EN 61800-3, EN 61000-6-3/4, EN 55011
EN 61800-3, EN 61000-6-1/2,
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