Circutor AFQm IP54, Instruction Manual

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149
Instruction Manual
AFQm IP54
ENGLISH
● Invert
This parameter is used to select the phase whose filter is going to switch the current direction of the
load measurement transformer, so installation faults may be corrected.
Press the key to save the modified settings.
7.10.- ALARMS
Note: This screen is not visible on the “slave” devices.
In this screen,
Figure 64
, the enabling or disabling of the resonance alarm is selected.
Figure 64: Configuration screen: Alarms.
If the control algorithm was selected in the
Frequency mode
and this alarm is
enabled
, when the de-
vice detects a potential resonance on an harmonic, it disables said harmonic and generates an alarm,
but it continues filtering the rest of the harmonics.
If the alarm is disabled , the device may interpret a resonance as an overload and continue filtering the
harmonic.
This option is enabled by default and it is recommended not to disable it.
Before
disabling
the resonance alarm, it is essential to make sure there is no resonat-
ing current between the active filter and the load. Resonating currents can damage the
active filter and other devices connected to the installation.
Press the key to save the modified settings.