Agilent Technologies 6028A, 6035A, 6033A, 603xA, 6023A, 6031A Turn-On Checkout Procedure, OVP Adjust

Number

5

Table 3-1. Controls and Indicators (continued)
Controls/Indicators	Description	Page
Numeric Display	Two 3-1/2 digit alphanumeric displays with automatically	33
	positioned decimal point that ordinarily indicate output VOLTS
	and AMPS (see items 6 & 7). When power supply is turned on all
	segments light for approximately 1 second. During an error
	condition, power supply output may exceed display range; displays
	will indicate + OL or - OL.

6

7

8

DISPLAYS SETTINGS Pushbutton Switch

DISPLAY OVP Pushbutton Switch

OUTPUT ADJUST Controls - Rotary Pulse Generator (RPG) and pushbutton switch

Causes numeric displays to indicate programmed voltage and	35
current values, rather than actual output values; allows both settings
to be made without the necessity of opening or shorting load.
Causes VOLTS display to indicate OVP trip voltage, AMPS	38
display is blanked; allows setting to be made without changing
output settings or load connections.
OUTPUT ADJUST knob functions either as a voltage control or a	38
current control, as determined by the pushbutton switch and
indicated by whichever (green) indicator, VOLTAGE or
CURRENT, is on. Knob functions as a two-speed device; faster
rotation causes greater rate of change per revolution. OUTPUT
ADJUST controls operate only when unit is under local control.

9

FOLDBACK Control

The pushbutton switch toggles foldback protection on and off in local operation; has no effect if power supply is not in CV or CC (ERROR LED flashes), or is in remote. Switch also resets foldback protection circuit if it has disabled power supply output. FOLDBACK ENABLED LED (green) operates in either local or remote.

39

10

11

OVP ADJUST

LINE Switch

The recessed, single-turn screwdriver control sets the overvoltage protection trip voltage.

Turns ac power on and off.

43

34

NOTE	Under certain conditions of line and load, it is possible for the supply to provide more than rated output
	power and still maintain regulation. If this occurs, the unit will operate normally and the OVERRANGE
	indicator will be off. However, the slightest change in either line or load may cause the unit to go out of
	regulation. Operation of the unit beyond the rated-output-power boundary is not recommended under any
	circumstances.

Turn-On Checkout Procedure

The power supply performs a series of self tests each time power is turned on. All front-panel LEDs, including all meter segments, are also turned on. The tests take approximately one second to complete, and all indicators remain on while the tests are running. This alerts the operator that self tests are running, and allows the operator to note if any indicators are inoperative.

After the self tests are completed all front-panel indicators are turned off for one-half second, allowing the operator to note if any are stuck on. If the operator suspects that any indicator may be malfunctioning he should turn power off and back on again while observing that indicator.

Operating Instructions 33