Danfoss VLT AQUA Drive FC 202 Design Manual page 49

Selection
Protection and Features
•
Electronic thermal motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the frequency converter trips when the temperature reaches
95 °C ± 5 °C. An overload temperature cannot be reset until the temperature of the heatsink is below 70 °C ± 5 °C
(Guideline - these temperatures vary for different power sizes and enclosures). VLT
derating function to prevent its heatsink reaching 95 °C.
•
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 high.
•
The frequency converter is protected against earth faults on motor terminals U, V, W.
Mains supply
Supply terminals (6-pulse)
Supply terminals (12-pulse)
Supply voltage
Supply voltage
Supply voltage
Mains voltage low/mains drop-out:
During low mains voltage or a mains drop-out, the frequency converter continues until the intermediate circuit voltage drops
below the minimum stop level, which corresponds typically to 15% below the lowest rated supply voltage. Power-up and full
torque cannot be expected at mains voltage lower than 10% below the lowest rated supply voltage.
Supply frequency
The frequency converter power supply is tested in accordance with IEC61000-4-28, 50 Hz +4/-6%.
Max. imbalance temporary between mains phases
True Power Factor (λ)
Displacement Power Factor (cosφ) near unity
Switching on input supply L1, L2, L3 (power-ups) ≥ enclosure type D, E, F
Environment according to EN60664-1
The unit is suitable for use on a circuit capable of delivering not more than 100.000 RMS symmetrical Amperes, 480/600 V
maximum.
Motor output (U, V, W)
Output voltage
Output frequency
Switching on output
Ramp times
Torque characteristics
Starting torque (Constant torque)
Starting torque
Overload torque (Constant torque)
*Percentage relates to nominal torque of VLT AQUA Drive.
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VLT AQUA Drive FC 202 Design Guide
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MG20Z102 - VLT is a registered Danfoss trademark
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AQUA Drive has an auto
L1-1, L2-1, L3-1, L1-2, L2-2, L3-2
380-480 V ±10%
525-600 V ±10%
525-690 V ±10%
50/60 Hz +4/-6%
3.0% of rated supply voltage
≥ 0.9 nominal at rated load
maximum 1 time/2 min.
overvoltage category III/pollution degree 2
0–100 % of supply voltage
maximum 110% for 1 minute
maximum 135% up to 0.5 s
maximum 110% for 1 minute
3 3
L1, L2, L3
(> 0.98)
0-590 Hz
Unlimited
1–3600 s
*
*
*
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