Function and Features
VFD will display ISO-Short in the lower right corner.
6. Press [On/Off], turn on the output.
7. Press [Shift]+[Enter](Trigger) to generate a trigger signal. The DC source
will output Short voltage drop waveform. The Trig indicating lamp will be lit
and display on the VFD.
Please make sure the trigger source is selected in MANUAL item in above
operations (refer to step 7th).
Reset Test
This test verifies the reset behavior of the DUT at different voltage drops. This
test is applicable to equipment with reset function, e.g. equipment containing
microcontroller. Apply the test pulse simultaneously in figure below to all
relevant inputs (connections) and check the reset behavior of the DUT.
Decrease the supply voltage by 5 % from the minimum supply voltage, USmin,
to 0,95USmin. Hold this voltage for 5 s. Raise the voltage to USmin. Hold
USmin for at least 10 s and perform a functional test. Then decrease the voltage
to 0,9USmin. Continue with steps of 5 % of USmin, as shown in Figure 6, until
the lower value has reached 0 V. Then raise the voltage to USmin again.
How to recall “Profile for the reset test” waveform from menu (take 12V system
as an example):
1. Press [Shift]+ [I-set](Function) to enter the menu operation.
2. Select Road-Vehicles, and press Right direction key to select ISO16750-2,
press [Enter] to confirm.
3. Press Up/Down direction keys to select Reset, press [Enter] to confirm.
4. VFD display Usmin…, press [Enter] to confirm. VFD will display
Usmin=12.000V, user can select the Usmin level.
5. Press Right direction key to On, press [Enter] to confirm.
6. Press [On/Off], turn on the output.
Copyright © Itech Electronic Co., Ltd.
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