SECTION 4 OPERATION
45
4.5.2 TRANSIENT EDITING (continued)
To start the Transient Edit Mode from any meter display, press the PROGRAM key, select a program
number, press ENTER then EDIT. The cursor will move to FORM. This example uses the program #4
information as described in the previous example.
PROGRAM: #4 FORM=3 COUPLING=DIRECT
FREQ=400 Va=108 Vb=108 Vc=108
WFa=1 WFb=1 WFc=1
#SEGS=0 Ilim=50 PHb=120° PHc=240°
From the PROGRAM edit display, press EDIT again. The TRANSIENT edit display will become active,
allowing transients to be created and edited
TRANSIENT: PRGM #4 SEGMENT #1 OF 1
T=0.0002 Va=108 Vb=108 Vc=108
F=400 WFa=1 WFb=1 WFc=1
The following Transient parameters may be programmed:
SEGMENT #: Segments define each event of a transient. Each segment provides a linear
transition in volts and/or frequency in the time indicated. Different waveforms may also be switched
in during each segment.
Normally don't enter a number here. It will automatically increment as required. Up to 99 segments
may be used to generate a transient. The total number of segments for all programs can not
exceed 1000. To edit a specific segment, enter that segment number.
In the upper right hand corner the total number of segments are displayed. If you wish to reduce the
number of segments in this transient you may enter the last segment number there, then you must
press STORE to save the transient.
T (Segment time): Enter a time from 0.0002 to 300 seconds for a time-based transient.
If cycle-based transients are desired, entering 0 in the first segment will make the entire transient a
cycle based transient. The display will then show "1 CYCLE". The time for each segment will then
be 1 period of the output waveform. This is useful for substituting different waveforms on a cycle by
cycle basis or defining a transient duration that is a specific number of cycles.
Va, Vb, Vc: Line to neutral voltages are entered for 1Ф and 3Ф Forms.
Line to Line voltages are entered for 2Ф operation.
Direct-Coupled output = 0 to 150 volts rms (300 V for 2Ф) in steps of 0.1 volts
Transformer-Coupled output (at XFMR Ratio: 2.5) = 0 - 375 Vrms (750 V in 2Ф) in steps of 0.5 volts
FREQ: Any desired output frequency from 20.00 to 5000 Hz. may be entered.
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