Danfoss VLT Refrigeration Drive FC-103N200 [68/77] Caution

Danfoss VLT Refrigeration Drive FC-103N200 [68/77] Caution
Control card performance
Scan interval 5 ms
Control card, USB serial communication
USB standard 1.1 (Full speed)
USB plug USB type B “device” plug
CAUTION
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is not galvanically isolated from protection earth. Use only isolated laptop/PC as connection to the USB
connector on the frequency converter or an isolated USB cable/converter.
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, frame sizes, enclosure ratings 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 is protected against earth faults on motor terminals U, V, W.
Specifications VLT® Refrigeration Drive 110-250 kW Operating Instructions
MG16F102 - VLT® is a registered Danfoss trademark 67
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