General Specifications - Danfoss VLT Compressor Drive CDS 803 Design Manual

General Specifications

8.2 General Specifications
Protection and features
•
Electronic thermal compressor 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 compressor terminals U, V, W.
•
When a compressor 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 compressor terminals U, V, W.
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 RMS symmetrical Amperes, 240/480 V
maximum.
Compressor output (U, V, W)
Output voltage
Output frequency
Switching on output
Ramp times
Cable lengths and cross-sections
Maximum compressor cable length, screened/armoured (EMC-correct installation)
Maximum compressor cable length, unscreened/unarmoured
Maximum cross-section to compressor, mains
Cross-section DC terminals for filter feedback on enclosure sizes H1–H3, I2, I3, I4
Cross-section DC terminals for filter feedback on enclosure sizes H4–H5
Maximum cross-section to control terminals, rigid wire
Maximum cross-section to control terminals, flexible cable
Minimum cross-section to control terminals
1) See chapter 8.1.2 Mains Supply 3x380–480 V AC for more information.
MG18N202
Design Guide
1)
Danfoss A/S © 12/2015 All rights reserved.
200–240 V ±10%
380–480 V ±10%
3.0% of rated supply voltage
≥0.9 nominal at rated load
Maximum 2 times/minute
Overvoltage category III/pollution degree 2
0–100% of supply voltage
+
0–200 Hz (VVC ), 0–400 Hz (u/f )
See chapter 2.7.3 EMC Test Results
4 mm
16 mm
2.5 mm
2.5 mm
0.05 mm
50/60 Hz
8 8
(>0.98)
Unlimited
0.05–3600 s
50 m (164 ft)
2
/11 AWG
2 /6 AWG
2
/14 AWG)
2
/14 AWG)
2
/30 AWG
71