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. 83
9 9
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