6
Local Operation
Introduction
Chapter 3 introduced you to the supply’s front panel controls and indicators to help you turn on the supply and perform the checkout procedures that were given in that chapter. The following paragraphs describe how to use all of the front panel controls and indicators. Most of the remote operations described in Chapter 5 can also be performed locally from the supply’s front panel.
Local Mode
In order to use the front panel keys to control the supply, the local mode must be in effect. The local mode is in effect immediately after power is applied. Table
In the remote mode (front panel RMT annunciator on), the front panel keys will have no effect on any of the supply’s outputs and only the computer can control the supply. You can, however, still use the front panel display to view the output voltage and current readings or the present settings for the selected output channel while the supply is in the remote mode.
You can return the supply to the local mode from the remote mode by pressing the LCL key provided that the local lockout command has not been received from the
Local Control Of Output Functions
The Output Function keys (see Figure
General
The power supply will accept programming values directly in volts and amps. The programmable voltage, current, and overvoltage ranges for the outputs of each model are given in Table
When you press the VSET, ISET, or OVSET key, the output selected and the present setting for that function will be displayed. You can change the setting using the numeric entry keys. Pressing the number keys will cause the present numeric setting to become blank and be replaced with the new numbers on the display. You can use the ∉ key to erase previous keystrokes if you make a mistake.