Velocity Edge GX440 Instructions d'exploitation Page 306

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Functions, monitoring, and protective functions
9.2 Active Infeed functions
Drive converter cabinet units
306 Operating Instructions, 10/2008, A5E00288214A
9.2.2 Harmonics controller
Description
Harmonics in the supply voltage cause harmonics in the line currents. Current harmonics
can be reduced by activating the harmonics controller.
Example: setting the harmonics controller
The 5th and 7th harmonic are to be compensated:
Table 9- 1 Sample parameters for the harmonics controller
Index p3624 Infeed harmonics controller
order
p3625 scaling
[0] 5 100 %
[1] 7 100 %
0% scaling means that the harmonics controller has been deactivated.
100 % scaling means that the harmonics controller has been activated with standard gain.
The phase currents in parameter p0069[0...2] (U, V, W) can be verified using the STARTER
trace function.
Parameters
r0069[0...6]
Phase current, actual value
p3624[0...1]
Infeed harmonics controller order
p3625[0...1]
Infeed harmonics controller scaling
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