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Danfoss VLT Active Front End AFE 302 - Mains Supply

Danfoss VLT Active Front End AFE 302
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Protection and Features
Temperature monitoring of the heatsink ensures that the frequency converter trips if the temperature reaches a
predefined level. An overload temperature cannot be reset until the temperature of the heatsink is below the
values stated in the tables on the following pages (Guideline - these temperatures may vary for different power
sizes, frame sizes, enclosure ratings etc.).
If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
Monitoring of the DC voltage ensures that the frequency converter trips if the DC circuit voltage is too low or too
high.
The frequency converter constantly checks for critical levels of internal temperature, load current, and the DC
voltage. As a response to a critical level, the frequency converter can adjust the switching frequency and/ or
change the switching pattern to ensure the performance of the frequency converter.
5.2 Mains Supply
5.2.1 Mains Supply 3x525-690 V AC
AFE 302 P400 P800 P1200 P1600
Typical Input at 550 V [kW] 315 710 1000 1400
Typical Input at 630 V [kW] 400 800 1200 1600
Enclosure IP00 E1 IP54 F1 IP54 F2 IP54 F1*2
Continuous input current at 550 V [A] 429 889 1317 1652
Intermittent input current (60 s overload) at 550 V [A]
1)
644 1334 2305 2891
Typical DC voltage at 550 V [V] 850 850 850 850
Continuous output DC current at 550 V [A] 457 947 1403 1760
Continuous input current at 630 V [A] 410 850 1260 1580
Intermittent input current (60 s overload) at 630 V [A]
1)
615 1275 2205 2765
Typical DC voltage at 630 V [V] 975 975 975 975
Continuous output DC current at 630 V [A] 425 882 1307 1639
Max. Cable size, mains [mm
2
(AWG)]
4x240 (4x500
mcm)
8x150 (8x300
mcm)
12x150
(12x300mcm)
16x150
(16x300mcm)
Estimated power loss at 630 V [kW] 8 16 24 32
Weight IP00 for E and IP54 for F1 and F2 221 382 574 764
Weight Module [kg] NA 102 102 102
Effieciency
2)
0.98 0.98 0.98 0.98
Heatsink overtemp trip level [°C]
85 85 85 85
Power card ambient trip [°C]
68 68 68 68
Table 5.1 Mains Supply 3x525-690 V AC
1) The typical overload percentage is 150. The P1M2 to P1M6 overload percentage is 175.
2) The efficiency is estimated at the nominal load condition. It is expected to be within
±
15%. If the switching frequency is increased, the power
loss rises.
Specifications Operating Instructions
42 Danfoss A/S © Rev. 05/2014 All rights reserved. MG33X402
55

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