Short-Circuit Analog Function; Von Function（Von - ITech IT8000 Series User Manual

4.1.6 Short-Circuit Analog Function

The load can analog a short circuit at input terminal. Under board operation,
press the [Shift]+[.] (Short) key to switch short circuit status. The short circuit
status does not influence existing setting value. When the short circuit operation
is switched back to OFF status, the load returns back to original setting status.
Actual current value consumed by load at short circuit depends on the existing
working mode of load and current range. Under CC, CW and CR modes, maxi-
mum short-circuit current is 100% of current range. Under CV mode, short cir-
cuit current is equivalent to that constant voltage value of load is 0 V.
4.1.7 VON Function（Von）
Set voltage value (Level) 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. Von
Latch function is only available in CC mode.
When testing some power products with slow voltage rise speed, if the elec-
tronic load input is opened before power on, 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.
•
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 trou-
ble 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 val-
ue as minimum value).
When VON LIVING function is started, the load starts load test 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 unload.
Copyright © Itech Electronic Co., Ltd.
Load Function
51