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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
5
5
Содержание VLT Active Front End AFE 302
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