6-41
IM 701210-05E
Triggering
6
6.17 Setting the Wave Window Trigger (ENHANCED)
Selecting the Target Waveform
12. Press the Select CH soft key. The channel selection menu appears.
13. Use the jog shuttle and SELECT to select the target channel.
Setting the Window Width
14. Press the Width soft key.
15. Turn the jog shuttle to set the window width.
Setting the Hold Off
16. Set the hold off time according to the procedures given in section 6.4.
Explanation
This trigger is used to detect abnormalities in the power waveform (disruption, sag,
serge, frequency fluctuation, voltage drop, etc.). A realtime template is continuously
created automatically using 1 to 4 waveforms before the current waveform, and
comparison is made between the current waveform and the realtime template. A trigger
occurs if the current waveform falls outside the realtime template.
4 previous waveforms
Current waveform
Power supply
waveform
Averaged waveform of
1 to 4 waveforms
Realtime template
Averaged waveform
+ tolerance width
Compare the current waveform against
the realtime template. Trigger activated
when the current waveform falls outside
the realtime template
Trigger activated
here
Disruption
(Trigger)
Sag
(Trigger)
Sag
(Trigger)
Serge
(Trigger)
Realtime
template