Chapter 2 Initial Operation
Power-On Checkout
30
Power-On Checkout
The power-on test includes an automatic self-test that checks the internal
microprocessors and allows the user visually to check the display. You will observe
the following sequence on the display after pressing the front panel power switch to
on.
1 All segments of the display including all annunciators will turn on for about one
second.
To review the annunciators, hold down the key as you
turn on the power supply.
2 The GPIB address or RS-232 message will then be displayed for about one
second.
The GPIB address is set to “5” when the power supply is shipped from the factory
for remote interface configuration. If this is not the first time the power supply is
turned on, a different interface (RS-232) or a different GPIB address may appear.
See ‘‘Remote Interface Configuration’’, for more information starting on page 50 in
chapter 3 if you need to change the remote interface configuration.
3The “OFF” and “+6V” annunciators are on. All others are off.
The power supply will go into the power-on / reset state; all outputs are disabled (the
OFF annunciator turns on); the display is selected for the +6V supply (the +6V
annunciator turns on); and the knob is selected for voltage control.
4 Enable the outputs.
Press the key to enable the outputs. The OFF annunciator turns off
and the +6V and CV annunciators are lit. The blinking digit can be adjusted by turning
the knob. Notice that the display is in the meter mode. “Meter mode” means that the
display shows the actual output voltage and current.
Note If the power supply detects an error during power-on self-test, the ERROR
annunciator will turn on. See “Error Messages”, for more information starting on
page 115 in chapter 5
ADDR 5 (or RS-232)
Output On/Off
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