Danfoss VLT FC 101 - EMC Emission Test Results; Special Conditions; Derating for Ambient Temperature and Switching Frequency; Derating for Low Air Pressure and High Altitudes

6.2 EMC Emission Test Results
6.2 Special Conditions
6.2.1 Derating for Ambient Temperature
and Switching Frequency
Ensure that the ambient temperature measured over 24
hours is at least 5 °C (41 °F) lower than the maximum
ambient temperature that is specied for the frequency
converter. If the frequency converter is operated at a high
ambient temperature, decrease the continuous output
current. For derating curve, see VLT
®
HVAC Basic Drive FC
101 Design Guide.
6.2.2 Derating for Low Air Pressure and
High Altitudes
The cooling capability of air is decreased at low air
pressure. For altitudes above 2000 m (6562 ft), contact
Danfoss regarding PELV. Below 1000 m (3281 ft) altitude,
derating is not necessary. For altitudes above 1000 m
(3281 ft), decrease the ambient temperature or the
maximum output current. Decrease the output by 1% per
100 m (328 ft) altitude above 1000 m (3281 ft) or reduce
the maximum ambient temperature by 1 °C (33.8 °F) per
200 m (656 ft).
6.3 General Technical Data
Protection and features
•
Electronic motor thermal protection against overload.
•
Temperature monitoring of the heat sink ensures that the frequency converter trips if there is overtemperature.
•
The frequency converter is protected against short circuits between motor terminals U, V, W.
•
When a motor phase is missing, the frequency converter trips and issues an alarm.
•
When a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
•
Monitoring of the DC-link voltage ensures that the frequency converter trips when the DC-link voltage is too low
or too high.
•
The frequency converter is protected against ground faults on motor terminals U, V, W.
6.3.1 Mains Supply (L1, L2, L3)
Supply voltage 200–240 V ±10%
Supply voltage 380–480 V ±10%
Supply voltage 525–600 V ±10%
Supply frequency 50/60 Hz
Maximum imbalance temporary between mains phases 3.0% of rated supply voltage
True power factor (λ) ≥0.9 nominal at rated load
Displacement power factor (cosφ) near unity (>0.98)
Switching on the input supply L1, L2, L3 (power-ups) enclosure sizes H1–H5, I2, I3, I4 Maximum 2 times/minute
Switching on the input supply L1, L2, L3 (power-ups) enclosure sizes H6–H8, I6–I8 Maximum 1 time/minute
Environment according to EN 60664-1 Overvoltage category III/pollution degree 2
The unit is suitable for use on a circuit capable of delivering not more than 100000 A
rms
symmetrical Amperes, 240/480 V
maximum.
6.3.2 Motor Output (U, V, W)
Output voltage 0–100% of supply voltage
Output frequency 0–200 Hz (VVC
+
), 0–400 Hz (u/f)
Switching on output Unlimited
Ramp times 0.05–3600 s
Specications Quick Guide
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