Circutor AFQm-3WF-030M-480, Instruction Manual

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75
Instruction Manual
AFQm
● 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 access the next configuration step
Press the key to access the main screen of the device without saving the configuration values.
7�10�- ALARMS
Note:
This screen is not visible on the
“slave”
devices.
In this screen,
Figure 79
, the enabling or disabling of the resonance alarm is selected.
Figure 79: 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 access the next configuration step
Press the key to access the main screen of the device without saving the configuration values.