![LOVATO ELECTRIC DCRG8F Скачать руководство пользователя страница 5](http://html1.mh-extra.com/html/lovato-electric/dcrg8f/dcrg8f_instruction-manual_1941984005.webp)
I564
GB
I
02
19
5
PAGINE
ESEMPIO
Energy meters
Event log
Expansion status
Real time clock
System
information
1 - Event description
2 - Event time stamp
3 - Event number / total
1 - Key
►
switches between
Total/Partial indications
1 - Level of revision for:
Software
Hardware
Parameters
2 - Plant / board name
3 - Internal temperature of
panel/controller
Note:
Some of the pages listed above may not be displayed if the relevant function is disabled. For example, if the limit function is not programmed, the corresponding page will not be shown.
HARMONIC ANALYSIS PAGE
– FFT harmonic analysis calculation and display up to the 31st order for the following measurements can be enabled:
• Phase-to-phase voltages
• Phase-to-neutral voltages
• Currents.
– For each of these measurements, there is a display page that graphically represents the harmonic content (spectrum) with a bar graph.
– Every column is related to one harmonic order, even and odd. The first column shows the total harmonic distortion (THD).
– Every histogram bar is then divided into three parts, one for each phase L1, L2, L3.
– The value of the harmonic content is expressed as a percentage with respect to the fundamental (system frequency).
– It is possible to show the harmonic content in numeric format, selecting the required order using
◄
and
►
. The lower part of the screen will display a small arrow that points to the selected column and the
relative percentage value of the three phases.
– The vertical scale of the graph is automatically selected among four full-scale values, depending on the column with the highest value.
1 - Numeric values of the
selected order
G
B