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Front Panel Display
The power supply has a front panel screen saver that significantly increases the life of the LCD display
by dimming it during periods of inactivity. The delay can be set from 30 to 999 minutes in 1 minute
increments. As shipped, the screen saver comes on one hour after activity on the front panel or
interface has ceased.
When the screen saver is active, the front panel display turns off, and the LED next to the Line switch
turns from green to amber. To restore the front panel display, simply press one of the front panel keys.
The first action of the key turns the display on. Subsequently, the key will revert to its normal function.
If the Wake on I/O function is selected, the display is restored whenever there is activity on the remote
interface. This also resets the timer on the screen saver. As shipped, Wake on I/O is active.
Front Panel Menu Reference
Select System\Preferences\Display\Saver
Enable or disable the screen saver by checking or unchecking
the Screen Saver checkbox. Then press Select.
Enter a value in minutes in the Saver Delay field to specify the
time when the screen saver will activate.
Check Wake on I/O to activate the display with I/O bus activity.
Specifying the power-on view
You can specify which measurement functions are displayed at power-on as follows. However, the
SCPI commands only change the present view; not the power-on view.
Front Panel Menu Reference
Select System\Preferences\Display\View.
From the dropdown menu select: Voltage,Current;
Voltage,Power; or Volt,Curr,Power. Then press Select.
Front Panel Lock-Out
You can lock the front panel keys to prevent unwanted control of the instrument from the front panel.
This is the most secure way of locking the front panel keys because you need a password to unlock the
front panel. This parameter is saved in non-volatile memory. Therefore, the front panel remains locked
even after ac power is cycled.
Front Panel Menu Reference
Select System\Preferences\Lock
In the dialog box, enter the password to unlock the front panel.
Then select Lock.
Keysight RP7970 & RP7980 Series Operating and Service Guide
4 Using the Regenerative Power System
SCPI Command
To turn the front panel screen saver on or off:
DISP:SAV ON|OFF
SCPI Command
To change the present meter view:
DISP:VIEW METER_VI
DISP:VIEW METER_VP
DISP:VIEW METER_VIP
SCPI Command
Not available
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