Frequency Surge Or Sag Transient - Ametek L Series User Manual

7.2.6 Frequency surge or sag transient

Frequency surge and sag transients will cause the output frequency to go
to the value specified in the Goto F field starting at the phase angle specified
in the phase ø field for a duration specified in the Delay (s) field. The delay
value can range from 1 ms to 9999 seconds. At the end of the delay period,
the output value will still be set to the value specified by the Final V field.
Note that if the Final F value is set to the same value as the Goto F value,
the F Srg/Sag transient effectively becomes a F Step transient.
The illustration shown here reflects an example of a typical F Sag
transient. The required row in the data entry screen for this transient would
be as shown below. In this case, register 0 was used to store the transient
information.
Rev D – March 2011
L-Series and FCS-18 Graphical User Interface User Manual
Frequency Sag to 200 Hz for 15 ms on a 400 Hz signal
California Instruments
15 ms
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