Emc Emission Test Results; Special Conditions; Derating For Ambient Temperature And Switching Frequency; Derating For Low Air Pressure And High Altitudes - Danfoss VLT FC 101 Quick Manual

Specifications

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 specified 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
101 Design Guide.

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
Supply voltage
Supply voltage
Supply frequency
Maximum imbalance temporary between mains phases
True power factor (λ)
Displacement power factor (cosφ) near unity
Switching on the input supply L1, L2, L3 (power-ups) enclosure sizes H1–H5, I2, I3, I4
Switching on the input supply L1, L2, L3 (power-ups) enclosure sizes H6–H8, I6–I8
Environment according to EN 60664-1
The unit is suitable for use on a circuit capable of delivering not more than 100000 A
maximum.

6.3.2 Motor Output (U, V, W)

Output voltage
Output frequency
Switching on output
Ramp times
MG18A802
Quick Guide
®
HVAC Basic Drive FC
Danfoss A/S © 05/2016 All rights reserved.
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).
Overvoltage category III/pollution degree 2
symmetrical Amperes, 240/480 V
rms
0–200 Hz (VVC
200–240 V ±10%
380–480 V ±10%
525–600 V ±10%
50/60 Hz
3.0% of rated supply voltage
≥0.9 nominal at rated load
(>0.98)
Maximum 2 times/minute
Maximum 1 time/minute
0–100% of supply voltage
+
), 0–400 Hz (u/f )
Unlimited
0.05–3600 s
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