User Manual – Rev BE AMETEK Programmable Power
MX Series 134
The selected phase is shown in the top right corner of the display (øA, øB or
øC). The selected wave shape will be applied to that phase. If all phases are
selected (phase coupling), the selected waveform will apply to all three phases.
If single phase is selected on a 45MX-3Pi model, the phase coupling is always
set to phase A, so pressing the PHASE button has no effect.
The following fields are available in the WAVEFORMS menu:
CLIP LEVEL This parameter determines the amount of total
harmonic distortion of the built-in CLIPPED sine wave
waveform. The range is 0 % through 20 % THD.
Note that changing the distortion level of the CLIPPED
sine wave while the CLIPPED sine wave is used on the
output of one or more phases, forces the output of the
AC Source to be dropped momentarily. To avoid this,
make sure none of the phases is using the CLIPPED
sine wave function when changing the clip level.
GROUP The group field displays the currently selected
waveform group. There are four groups of 50 user-
defined waveforms each for a total of 200 waveforms.
Only one group can be active at a time however. This
field only displays the selected waveform group. It
cannot be used to change the actual group selected.
Group selection must occur at power up and is done
from the INITIAL SETUP 3 screen. See section 4.2.11.3
for details.
MODE The mode field determines the operation mode of the
WAVEFORMS display screen. Available options for this
field are:
PROG: This mode is used to change the programmed
wave shape function on the selected phase. This is also
the default mode of operation.
VIEW (T): This mode can be used to display any of the
available user defined waveforms in a time domain
display. Previewing a waveform can be useful if you are
unsure about the nature of the waveform that was
stored.
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