Chapter 3 Front-Panel Operation
System-Related Operations
42
System-Related Operations
This section gives information on topics such as self-test, error conditions, and
front-panel display control. This information is not directly related to setting
up the power supply but is an important part of operating the power supply.
Self-Test
A
power-on
self-test occurs automatically when you turn on the power supply .
This test assures you that the power supply is operational. This test does not
perform the extensive set of te sts that are included as part of the comple te self-
test described below. If the power-on self-test fails, the
ERROR
annunciator
turns on.
•A
com plete
self-test performs a series of tests and takes approximately 2
seconds to execute. If all te sts pass, you can have a high confidence that the
power supply is operational.
• If the
complete
self-test is successful, “PASS” is displayed on the front panel.
If the self-test fails, “FAIL” is displayed and the
ERROR
annunciator turns
on. See the
Servic e Gu id e
for inst ructions on re turning the power supply to
Hewlett-Packard for service.
• Front-panel operation:
To perform the c omplete front panel
self - t est
, hold down the ke y a s you
turn on the power supply and
hold down
the key
until you hear a lon g beep
.
The self-test wil l begin when you release the key follow ing the beep.
• Remote interface operation:
*TST?
Returns “0” i f the c omplete self-test passes or “1” if it fails.
Recall
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