AMETEK SGI Series - Manual (Page 83)

Sorensen SGI Series Calibration and Verification
M550221-01 Rev AA 3-31
Resume key to continue the sequence or the Stop key to
end the sequence.
S EQUENCING E XAMPLE
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
Burn-in Sequence
0 5 10 15 20 25 30
Tim e in seconds
O
u
tp
u
t
V
o
lt
a
g
e