Figure 4-8: Custom Waveform Creation With Gui Program - Ametek California Instruments MX15 Series User Manual

Once downloaded, waveforms remain in non-volatile memory and will be visible in the
PROGRAM menu for selection. The user can assign a 12-character name to each custom
waveform. Avoid using any of the standard waveform names (SINE, SQUARE or CLIPPED) as
these names will not be accepted.
Waveforms may be deleted using the IEEE-488 or RS232C interface as well. Custom
waveforms cannot be deleted from the front panel however to avoid accidental erasure.
4.4.3 Waveform Groups
Waveform groups extend the number of available custom waveform to 200. Each group can
contain up to 50 user-defined waveforms. Groups are numbered 0 through 3 and may be
selected only by using the included Gui. To switch waveform groups, proceed as follows:
1. Establish a connection to the unit using RS232 or GPIB interface with the provided Gui.
Send the command: PONS:WGR x, where x is 0-3 depending on which group is to be
selected.
2. To activate your new selection, YOU MUST CYCLE THE POWER so the AC source re-
initializes. If the source is operated over the bus, a IEEE-488 Device Clear or reset
command (*RST) command will have the same effect.
The new wave group will be active after you turn the power to the unit back on.
4.4.4 RMS Amplitude Restrictions
The output of a sine wave may be programmed to the full rms value of the voltage range
selected. If the AC source is in the 300 V range, the maximum programmable rms voltage is 300
Volt. If a custom waveform is used however, the maximum programmable rms voltage may be
less than the maximum range value. The voltage range limit is based on the use of a sine wave
with a 1.414 crest factor. A 300 V rms sine wave has a 424 Volt peak voltage. The AC source
has a maximum peak voltage capability that is determined by the selected voltage range. If the
user selects a custom waveform with a crest factor that is higher than 1.414, the peak voltage
would exceed this maximum if the rms voltage were to be programmed at 300 V rms.
MX15 Series

Figure 4-8: Custom Waveform Creation with GUI Program

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