5.5 Changing Event Settings
69
Chapter 5 Changing Settings (as necessary)
5
Hysteresis Set as a percentage of the event thresholds for voltage, current, power, and
other measured values in order to prevent an excessively large number of
events from occurring. It is generally recommended to set the hysteresis from
1% to 2%.
Slide
(slide reference
voltage)
When the voltage value fluctuates gradually, allows dip and swell to be judged
using the fluctuating voltage values as a reference. (For more information. (For
more information, see "Slide reference voltage" (p.A27))
SENSE
(Sense)
When the RMS voltage or RMS current continues to fluctuate in excess of the
threshold, generates an event when the value obtained by adding the set sense
value and the measured value is exceeded. You can track events to identify the
status when the RMS voltage or RMS current exceeds the threshold. (For more
information, see "Sense" (p.A27))
Turning events on and off and adjusting thresholds
(applies to voltage, current, and power)
Setting Contents:( : Default setting)
OFF
Disables the event function for the selected setting.
ON
Sets the threshold at which to enable the event function for the
selected setting.
Select a setting
[OFF]
[ON]
Or
Accept the setting
Cancel
Set the threshold
See: "Reference graph
for use when set-
ting thresholds"
Select the setting
to change it
• Sets the voltage swell, voltage dip, and voltage interruption threshold values as percent-
ages of nominal voltage (Uref)*. The converted voltage is displayed to the right of the
percentage setting.
• Setting the voltage swell and voltage dip [Slide] settings to [ON] causes the threshold to
be expressed as a percentage of the slide reference voltage.
*: The nominal voltage (Uref) is obtained by multiplying the nominal input voltage (Udin) by
the VT ratio. When the VT ratio is 1, the nominal voltage (Uref) is equal to the nominal
input voltage (Udin).
• If the threshold value falls outside the valid setting range, "-----" will be displayed. Press-
ing the ENTER key resets the value to the threshold upper limit.
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