Test Files - ITech IT8500plus Series User Manual

4.7 Test Files

Test files are a generalization of lists—they let you generate a sequence of
tests using different modes, mode parameters, and durations. They are useful
for executing a set of tests on a device, then displaying whether the tests
passed or failed. We will illustrate how to use test files by a short example.
You can edit up to 10 groups of testing files, each file has 10 steps, it can edit
up to 100 steps which can be saved in EEPROM (address).
Suppose we have a small AC to DC power supply (a "wall-wart") and we want
to set up an acceptance test for a number of these devices. Our test will consist
of two steps:
1. Set the DC load to constant current mode to draw the rated current of 1.2A
from the device. The output voltage of the device at the rated current must
be between 4.4V and 4.6V.
2. Set the DC load to constant voltage 3V. The output current of the device is
between 2A
3. When the device operates into a short, the supplied current must be larger
than 3.0 A.
Steps
Press [Shift]+[3] (List),
1
the ON is
[Enter]
to select ON,then
to select
[ ]
[Enter]
to confirm.
2
Select the list file.Press
confirm.
3 -
and 3A.
Press [Shift]+[6] (Prog),
1
2 Press [1] ,[2] and [3], Press
[Enter] to confirm.
3 Select the step that needs to
pause during the test.
When it is paused,press [
can continue the test.
4 Step 3 short circuit testing,
press [3]. And press [Enter]
to confirm.
5 Set Ton for the first step, if you
want to load on 2S, press [2],
and then press [Enter] to
confirm.
Ton range 0~60S
6 Set Toff for the first step, if you
want to load off 2S, press [2],
then press [Enter] to confirm
Toff range 0~60S
7 Set testing delay time, range
0~60S e.g. 1S, press [1].
Copyright © Itech Electronics Co., Ltd.
make sure
flashing,if not,press
press
CALL
,press
[Enter]
to
Operation
]
Basic Operation
LIST ON CALL
EDIT
RECALL LIST =1
LIST ON CALL
EDIT
VFD Display
ACTIVE =0987654321
ACTIVE =0987654YYY
PAUSE
=NNNNNNN32Y
SHORT
=NNNNNNNY21
SEQ01 ON =2S
SEQ01 OFF =2S
SEQ01 P/F =1S
37