Control card performance
Scan interval
5 ms
Control card, USB serial communication
USB standard
1.1 (full speed)
USB plug
USB type B “device” plug
Generic specifications
Maximum parallel filters
4 on same CT set
Filter efficiency
97%
Typical average switching frequency
3.0–4.5 kHz
Response time (reactive and harmonic)
<0.5 ms
Settling time - reactive current control
<20 ms
Settling time - harmonic current control
<20 ms
Overshoot – reactive current control
<10%
Overshoot – Harmonic current control
<10%
WARNING
Connection to PC is carried out via a standard host/device USB cable. The USB connection is galvanically isolated from
the supply voltage (PELV) and other high-voltage terminals. The USB connection is not galvanically isolated from
protective earth. Use only isolated laptop/PC as connection to the USB connector on the unit or an isolated USB cable/
converter.
Protection and features
•
Temperature monitoring of the heat sink ensures that the active filter trips if the temperature reaches a predefined
level. An overload temperature cannot be reset until the temperature of the heat sink is below the acceptable
values.
•
If a mains phase is missing, the active filter trips.
•
The active filter has a short circuit protection current rate of 100 kA if properly fused
•
Monitoring of the DC-link voltage ensures that the filter trips if the DC-link voltage is too low or too high.
•
The active filter monitors the mains current as well as internal currents to reassure that current levels do not reach
critical levels. If current exceeds a critical level, the filter trips.
Rated Current
Current
[A]
190
250
310
400
Losses
Watt
[kW]
5
7
9
11
Needed Airflow
M
3
/h
765
1230
1230
1230
Frame
D
E
E
F
Nominal
Reactive
[A]
190
250
310
400
Nominal
Harmonic
[A]
170
225
280
360
Maximum individual hamonic
compensation in back channel
I
5
[A]
119
158
196
252
Nominal/(maximum)
I
7
85
113
140
180
I
11
54
72
90
115
I
13
48
63
78
101
I
17
34
45
56
72
I
19
31
41
50
65
I
23
27
36
45
58
I
25
24
32
39
50
Table 9.1
Note: Numbers are rounded to nearest amp
Specifications
Operating Instructions
MG90V302
Danfoss A/S © 09/2014 All rights reserved.
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