ITech IT7900 Series - Page 67

Configuration Arbitrary Waveform
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When using the dimming function, this function will automatically turn off, and when using this
function, dimming function is turned off.
Operating steps
1. Press [Shift]+ (Surge&Sag)on the front panel to enter the List
function configuration interface.
2. Set the voltage and frequency parameters in the sweep interface.
Parameters in the sweep interface are described as follows:
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Mode
surge/sag executing mode.
Trig
: Trigger mode. Executing the surge/sag aft
er receiving
the trigger signal.
P
eriod: Period mode. Execute
the surge/sag based on the
period
.
Action
This setting is valid when the mode select to Trigger.
Imme: Executing the surge/sag immediately
Angle: Executing the surge/sag at specific angle.
Trig source
Select the trigger source when the mode select to Trigger.
Start angle
Set the start phase angle of the surge/trap.
Angle width
Set the period of the surge/trap. For example, start
angle=30
degree, Angle width=20 d
egree, then, the
waveform wi
ll execute surge/sag at 30 to 50 degree.
Symmetry
Whether to produce symmetrical surge/sag waves.
If
Start angle + Angle width >180e,this setting is Off
state.
Repeat count
repeat count of surge/sag waves.