Operation Sorensen SGI Series
3-30 M550221-01 Rev U
Resume key to continue the sequence or the Stop key to
end the sequence.
SEQUENCING EXAMPLE
The following provides an example of programming and running a test
sequence.
A typical burn-in sequence requires the voltage to the device-under-test
(DUT) to ramp up to a nominal voltage, allow the unit to soak at that voltage
for a period of time, then ‘bump’ up that voltage to another level, soak, etc.,
then return the output back to zero. In some cases, an on/off power cycle
sequence may also be required. Figure 3-11 provides a graphical
representation of this example burn-in sequence.
Figure 3-11. Burn-in Sequence Example
To begin programming a sequence it is important to know the exact settings
for each step of the sequence. In this case, two sequences will be
programmed: the first being the up/down ramp sequence, and the second the
on/off sequence. The two will be strung together using a Goto command.
The example sequence will perform the following:
Sequence 1 – Up/Down Ramp
Step 1 – Ramp the output voltage from 0 V to 20 V over a 1 s period
Step 2 – Hold the voltage at 20 V for 2 s
Step 3 – Ramp the voltage from 20 V to 40 V over a 500 ms period
Step 4 – Hold the voltage at 40 V for 2.5 s
Step 5 – Ramp the voltage from 40 V to 0 V over a 2 s period
Step 6 – Hold the voltage at 0 V for 2 s
Step 7 – Go to sequence 2
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