•
The adjustable frequency drive is protected against ground faults on motor terminals U, V, W.
Frame size D13 E9 F18
Voltage [V] 380–480 380–480 380–480
Current, RMS [A] 120 210 330 Nominal value
Peak current [A] 340 595 935 Amplitude value of the current
Response time [ms] <0.5
Settling time - reactive current control [ms] <40
Settling time - harmonic current control
(ltering) [ms]
<20
Overshoot - reactive current control [%] <20
Overshoot - harmonic current control [%] <10
Table 8.4 Power Ranges (LHD with AF)
Grid conditions
Supply voltage 380–480 V
AC line voltage low/line drop-out:
During low AC line voltage or a line drop-out, the lter continues until the intermediate circuit voltage drops below the minimum
stop level, which corresponds to 15% below the lter lowest rated supply voltage. Full compensation cannot be expected at AC
line voltage lower than 10% below the
lter lowest rated supply voltage. If AC line voltage exceeds the lter highest rated
voltage, the lter continues to work but harmonic mitigation performance is reduced. The lter does not cut out until AC line
voltages exceed 580 V.
Supply frequency 50/60 Hz ±5%
Max. imbalance temporary between line phases
where mitigation performance is kept high.
3.0% of rated supply voltage
Filter mitigates at higher line imbalance but harmonic mitigation
performance is reduced
Max THDv pre-distortion
10% with kept mitigation performance
Reduced performance for higher pre-distortion levels
Harmonic mitigation performance
THiD
Best performance <4%
Depending on lter vs. distortion ratio.
Individual harmonic mitigation ability: Current maximum RMS [% of rated RMS current]
2nd 10%
4th 10%
5th 70%
7th 50%
8th 10%
10th 5%
11th 32%
13th 28%
14th 4%
16th 4%
17th 20%
19th 18%
20th 3%
22nd 3%
23rd 16%
25th 14%
Total current of harmonics 90%
The lter is performance tested to the 40th order
Specications Installation Manual
MG37A322 Danfoss A/S © Rev. 04/2015 All rights reserved. 99
8 8
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