5
Front Panel Operation
Introduction
This chapter shows you how to operate the front panel. It is assumed that you are familiar with the
■Enabling or disabling the power supply output.
■Setting the output voltage and current.
■Monitoring the output voltage and current.
■Setting the overvoltage protection (OVP) trip point.
■Enabling the overcurrent protection (OCP) circuit.
■Saving operating states in nonvolatile memory.
■Recalling operating states from nonvolatile memory.
■Setting the power supply GPIB bus address.
■Displaying error codes created during remote operation.
■Enabling local (front panel) operation.
Note You also can calibrate the power supply from the front panel (see Appendix B).
Getting Acquainted
The front panel is summarized in Figure
LCD display (including annunciators)
Output VOLTAGE and CURRENT rotary (RPG) knobs SYSTEM keypad
FUNCTION keypad ENTRY keypad
Power (LINE) switch
Some keys have two functions. For example, the System 
key can be used either to recall a stored operating state or
to 
(store) an operating state. The first operation is shown on the key and the second (shifted) operation is shown in blue above the key. In order to do a shifted operation, first press the solid blue key, which is unlabeled but shown
throughout this manual as 
.
For example, for a recall operation, press the recall key 
. For a save operation, press the save key, which is
. When you do this, the Shift annunciator will light to remind you that the 
key is now functioning as
the 
key. In this chapter, such a shifted operation may be shown simply as 
.
