ITech IT7900P Series User Manual page 113

Configuration mode of Load:
DC
Config
AC
Config
Balance Control Setting
In three-phase mode, the instrument is in three-phase balance mode by default,
and the three-phase output voltage will be set synchronously, and the phase
Angle between phases is fixed at 120°, which cannot be set.
You can set the Balance Control to Off and disable the Balance control function
in the Config menu. And then, the voltage of each phase can be set
independently, and the config menu displays the phase Angle difference setting
parameter between AB and AC.
Dimming Function(only for Source mode)
The front and back edge of the waveform can by concealed and the phase
angle set with Dimmer function to regulate the active power, thus
adjusting the lighting intensity.
Select Front edge, and phase set to 90° in Configuration menu.
Configuration setting for DC mode
Load constant mode.
Const
CV/CC/CR/CP/CC+CV/CR+CV/CP+CV/CC+CR/CC+
Mode
CV+CR+CP
DC current value, The parameters to be set vary with
the selected const mode.
Iset
Range: 0-full scale。
Slew Rate: 0.0001-750A/ms
Input parameter setting menu in AC mode (Parameters vary in
different modes. CC mode is used as an example.)
Balanc Balance control only displayed in 3-phase mode.
e If select On, the input of ABC phase is synchronous.
control If select Off, the input is not balanced.
Const
Load constant mode: CC/CR/CP/CS/CC+CR/CE
Mode
Input AC current
Current
Iac: AC current, range from 0-full scale
AC
AC slew: Slope , range from 0.0001-750A/ms
Current
DC offset for 1-phase mode or 3-phase unbalance mode.
DC
Input current of DC, range from 0-10% of full scale
Offset
Slew Rate: Slope , range from 0.0001-750A/ms
Waveform (phase shift range: -90.0~90.0): select the
Wavefor waveform. Under CC mode, and Unit PF is off,
m Waveform can be select.
(phase Crest Factor: CF range is 1.414~5, and the range is
shift limited by peak value.
range: Phase shift: Phase shift of voltage and current. A phase
- shift in the sense of a merely capacitive or inductive load
9.0~90. is not possible. Phase shift range within -90°~90°. If
0) programmed is positive it will be a leading power factor. If
programmed is negative it will be a lagging power factor.
Copyright ©ITECH Electronic Co., Ltd.
System-Related Functions
111