Front-Panel Operation
Global Settings 4
4-5
4-5. Global Settings
Navigate to the Global Settings Menu using . See Figure 4-2.
gdw33.bmp
Figure 4-2. Global Menu Softkeys
4-6. Frequency
Set the required output frequency. An attempt to set frequency outside the active band
when any output is ON will cause a warning message to be displayed.
4-7. Line Locking
For correct operation, it is essential that line locking is not selected unless the selected
frequency is the same as the nominal input line frequency. Select line locking by
checking the line lock box. The Lock indication shows green when the system is locked
to line frequency. Red indicates that the Instrument has not locked to line frequency. See
Figure 4-3.
gdw06.bmp
Figure 4-3. Frequency, Line Locking
4-8. Harmonic Edit Mode
If necessary navigate to the Global Settings Menu using . Press the V, I and Power
Modes softkey to access the Harmonic mode softkeys. Return to the top-level softkeys
by pressing escape. Select the way voltage and current harmonics are entered. The edit
modes are as follows:
• Harmonics entered as % of RMS value
Here the RMS value is maintained constant by reducing the level of the fundamental
frequency component as harmonics are added. Changing the RMS value alters each
harmonic accordingly.
• Harmonics entered as % of the fundamental (first harmonic) value
Here the fundamental value is constant and the RMS value changes as harmonics are
added.
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