5 - Front Panel Operation
38
Function Keys
Refer to the examples later in this chapter for more details on the use of these keys.
FUNCTION
Input
Meter
OV
Voltage
OCP
Current
Cal
Output
Prot Clear
Protect
Output
on/off
Figure 5-3. Function Keys
Immediate Action Keys
Immediate action keys immediately execute their corresponding function when pressed. Other function
keys have commands underneath them that are accessed when the key is pressed.
This key toggles the output of the dc source between the on and off states. It
immediately executes its function as soon as you press it. When off, the dc
source output is disabled and the Dis annunciator is on.
Press this key to reset the protection circuit and allow the unit to return to its
last programmed state. The condition that caused the protection circuit to
become active must be removed prior to pressing this key, or the unit will shut
down again and display the Prot annunciator again. (If FS protection is
displayed on the front panel, the unit must be opened and an internal fuse
replaced as described in the Service manual.)
Press this key to toggle between OCP enabled and disabled. If OCP is enabled
the output will become disabled if the output mode changes from CV to CC
mode. The OCP annunciator indicates the state of OCP.
Scrolling Keys
Scrolling keys let you move through the commands in the presently selected function menu.
Press to bring up the next command in the list. Press to go back
to the previous command in the list. Function menus are circular; you can
return to the starting position by continuously pressing either key. The
following example shows the commands in the Input function menu:
CURR:RANGE <char>
CURR:DET <char>
Output
On/Off
Prot Clr
Shift
OCP
Shift
p
q
ô
q
q
