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Heat sink overtemperature trip
[°C (°F)]
Weight, enclosure protection rat-
ing IP20 kg (lbs)
Control card overtemperature
trip [°C (°F)]
1
Refer to the chapter Derating for the derating curves at 50°C (122°F) ambient temperature.
2
The drive also supports 150% overload for 60 s when selecting 1 level higher power size.
3
Typical power loss is at normal conditions and expected to be within ±15% (tolerance relates to variety in voltage and cable conditions). These
values are based on a typical motor efficiency (IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies for dimension-
ing of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power
consumptions are included. For power loss data according to EN 50598-2, refer to Danfoss MyDrive® ecoSmart website. Options and customer load
can add up to 30 W to the losses, though usually a fully loaded control card and options for slots A and B each add only 4 W.
4
Measured using 5 m (16.4 ft) shielded motor cables at rated load and rated frequency. Efficiency measured at nominal current. For energy efficien-
cy class, see 
9.2.14 Ambient Conditions (H13–H14). For part load losses, see Danfoss MyDrive® ecoSmart website.
9.2 General Technical Data
9.2.1 Protection and Features
Electronic motor thermal protection against overload.
Temperature monitoring of the heat sink ensures that the drive trips if there is overtemperature.
The drive is protected against short circuits between motor terminals U, V, W.
When a motor phase is missing, the drive trips and issues an alarm.
When a mains phase is missing, the drive trips or issues a warning (depending on the load).
Monitoring of the DC-link voltage ensures that the drive trips when the DC-link voltage is too low or too high.
The drive is protected against ground faults on motor terminals U, V, W.
9.2.2 Mains Supply
Maximum imbalance temporary between mains phases
3.0% of rated supply voltage
≥0.9 nominal at rated load
Displacement power factor (cosφ) near unity
Switching on the input supply L1, L2, L3 (power-ups) enclosure
sizes H1–H5
Switching on the input supply L1, L2, L3 (power-ups) enclosure
sizes H6–H8
Switching on the input supply R, S, T (power-ups) enclosure sizes
H13–H14
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.
9.2.3 Motor Output (U, V, W)
Output frequency in U/f mode (for AM motor)
AJ363928382091en-000101 / 130R0983 | 133Danfoss A/S © 2021.04
General Specifications
VLT® Flow Drive FC 111
Design Guide