Von Function - ITech IT8300 Series User Manual

3.15 VON Function

When testing some power products with slow voltage rise speed, if the
electronic load input is opened before power, the power may latch protection. In
this way, the user may set VON value. The electronic load only latches when
power voltage is higher than this value.
Press [Shift] + 9(Config) keys to enter configuration menu. Set voltage value in
Voltage on under configuration menu to control on/off status of electronic load.
Based on Von value load and unload, the load has two modes: Living and Latch.
When Living is selected, it indicates that the work load point is in living status;
when Latch is selected, it indicates that the work load point is in latch load
status.

When VON LIVING function is enabled, the tested power voltage starts
rising. When the voltage is higher than the difference between Von Point
and Hysteresis, and is lower than Von Point loading voltage, the load will
not be loaded; and the load test starts only when the power voltage rises
and is higher than Von Point loading voltage.
After load test, judge whether to continue loading based on the difference
between Von Point and Hysteresis; when the power voltage drops but is
still higher than the difference between Von Point and Hysteresis, the load
is still loaded; only when the power voltage is lower than the difference
between Von Point and Hysteresis, the load will unload.
Load working range when VON LIVING is started
Note
Please confirm whether it is necessary to set loading voltage, a step that provides
convenience for limiting working voltage value. If not necessary, do not set the loading
voltage to prevent unnecessary trouble from failure of loading.
If the instrument cannot load, please firstly check whether the VON function is set. If yes,
reset the Von value to minimum value (which may be directly set as 0. If minimum voltage
value of instrument is not 0, press 0 for confirmation and the menu will automatically set
the value as minimum value).
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Function and Features
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