Chapter 2 Initial Operation

Power-On Checkout

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.

1The front-panel display will light up briefly while the instrument performs its power-on self-test.

To review the power-on display with all annunciators turned on, hold down

Display key as you turn on the power supply.

Limit

2 The GPIB address or RS-232 is also displayed for about one second.

ADDR 05 (or RS-232)

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" in chapter 3 starting on page 58 if you need to change the remote interface configuration.

3The “8V”* or “25V”**, “OVP”, “OCP” and “OFF” annunciators are on. All others are off.

The power supply will go into the power-on / reset state; the output is disabled (the OFF annunciator turns on); the 8/20A* or 25V/7A** range is selected (the 8V* or 25V** annunciator turns on); and the knob is selected for voltage control. Notice that the OVP and OCP annunciator also turn on.

Output

 

 

On/Off

 

Enable the outputs.

4

 

 

The OFF annunciator turns off and the 8V* or 25V**, OVP, OCP, 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.

 

 

N o t e

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

 

123 in chapter 5

 

 

*For Agilent E3633A Model **For Agilent E3634A Model

 

 

 

 

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Image 29
Agilent Technologies E3634A, E3633A manual Addr 05 or RS-232, Initial Operation Power-On Checkout, Enable the outputs