Chapter 3 Front-Panel Operation
System-Related Operations
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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 tests that are included as part of the complete self-test described below.
If the power-on self-test fails, the
ERROR annunciator turns on.
•A complete self-test performs a series of tests and takes approximately 2 seconds
to execute. If all tests 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 Service Guide for instructions on returning the power supply to Hewlett-
Packard for service.
• Front-panel operation:
To perform the complete front panel self-test, hold down the key as you turn
on the power supply and hold down the key until you hear a long beep. The self-test
will begin when you release the key following the beep.
• Remote interface operation:
*TST?
Returns “0” if the complete self-test passes or “1” if it fails.