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System Setting（SYSTEM）
V-Range
I-Range
I-Prot
P-Prot
Von
Voff
Rise Rate
Fall Rate
Von Delay
V Slew
Power Supply
4.1.1 Von/Voff Function
When user is testing some power products which voltage rise slowly, and the E-load
have loaded before power products is power-up, the power product may latch protection.
In this case, you'd batter set Von on.Then E-load will load when power voltage is higher
than this value by setting VON value.
Please confirm the necessity of setting loading voltage, this step
provides convenience for limiting working voltage value of the source
under test. If no necessary, don't set the loading voltage without
authorization to prevent unnecessary trouble from failure of loading.
The user can set the Von voltage value under the System setting page to control the
ON/OFF state of the E-load. If the instrument cannot load, please firstly check whether
the VON function is on. 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).
When VON LATCH function is on, the E-load starts load only when the power voltage
rises and is higher than Von Point loading voltage. When the power voltage drops and is
lower than Von Point unloading voltage, the load will not unload, as shown in the figure
below:
ET System electronic GmbH
LOW
low voltage range 0~15.2V
HIGH
high voltage range 0~152V
LOW
low current range 0~3.2A
HIGH
high current range 0~32A
Exceed the set value of 0.0002~32A, load protection
Exceed the set value of 0.001~155W, load protection
Set 0V means the function is off.
Set 0~152V means Von function is on.
Set 0V means the function is off.
Sett 0~152V means Von function is on.
Set current rise rate of 0.001~3A/uS
Set current fall rate of 0.001~3A/uS
Set Von delay time from 0 to 9.999S
Set 0.001V/mS
AUTO, automatic detection of power supply type
CC, constant current power supply such as: LED
power supply
CV, constant voltage power supply such as: most
switching power supply
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