General Technical Data; Protection And Features; Mains Supply (L1, L2, L3); Compressor Output (U, V, W) - Danfoss VLT CDS 803 Operating Manual

Operating Guide | VLT® Compressor Drive CDS 803

6.5 General Technical Data

6.5.1 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 compressor terminals U, V, W.
• When a compressor 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 compressor terminals U, V, W.

6.5.2 Mains Supply (L1, L2, L3)

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)
Environment according to EN 60664-1
The unit is suitable for use on a circuit capable of delivering not more than 100000 A
symmetrical Amperes, 240/480 V maximum.

6.5.3 Compressor Output (U, V, W)

Output voltage
Output frequency
Switching on output
Ramp times

6.5.4 Cable Lengths and Cross-sections

Maximum compressor cable length, shielded/armored (EMC-correct installation)
Maximum compressor cable length, unshielded/unarmoured
Maximum cross-section to compressor, mains
Cross-section DC terminals for filter feedback on enclosure size H3
Cross-section DC terminals for filter feedback on enclosure sizes H4–H6
Maximum cross-section to control terminals, rigid wire
Maximum cross-section to control terminals, flexible wire
46 | Danfoss A/S © 2019.12
3.0% of rated supply voltage
≥0.9 nominal at rated load
Maximum 2 times/minute
Overvoltage category III/pollution degree 2
rms
0–100% of supply voltage
0–200 Hz (VVC
See 6.3 EMC Emission Test
See 6.2 Mains Supply 3x380–480 V AC
AQ321748767627en-000101 / 130R0570
Specifications
200–240 V ±10%
380–480 V ±10%
50/60 Hz
(>0.98)
+
), 0–400 Hz (u/f)
Unlimited
0.05–3600 s
Results.
50 m (164 ft)
for more
information
2
4 mm /11 AWG
2
16 mm /6 AWG
2
2.5 mm /14 AWG
2
2.5 mm /14 AWG