1 – 12
Overview
a collection of 7 menus, each of which is selected with a dedicated
front-panel button.
The LD subsystem has three dedicated menu trees: Settings, Mon-
itor, and Configuration. These can be selected by pressing one of
9
the “Parameters” buttons under the “Laser Diode Control” section
of the panel. The TEC has a similar collection of menus, which
8
are selected by pressing the “Parameters” buttons under the “TEC
Control” section of the panel.
A seventh menu tree, Utility, can be selected by pressing the [Util-
ity
/
Local] button.
7
1.6.3.1 Menu navigation
Once a menu tree is selected, individual menu items are navigated
by pressing the [ ] or [ ] buttons in the “Menu” block, just to the
3
right of the alphanumeric display. Note that some menu items are
only visible when the instrument is appropriately configured. To
jump between major menus, press the button associated with the
new menu. For instance, to jump from the LD voltage monitor menu
LD :
to the TEC temperature setpoint menu
!"#
!!!!$
simply press the [Set] button under the “TEC Control” block.
Pressing the [Monitor] button back in the “Laser Diode Control”
block will return to the menu selection previously being visited (in
this case, the LD voltage monitor).
1.6.3.2 Floating-point entry
Setting and Configuration menu items that have continuously-
adjustable parameters can be set using the numeric keypad. Values
10
are not entered until the [Enter] button is pressed. A lamp will blink
above the [Enter] button whenever there is a pending user value that
has not been entered to the instrument. Pressing the [Clear
/
Cancel]
button, or any menu navigation button, will abandon a non-entered
pending user value.
1.6.3.3 Token entry
Configuration menu items that have a discrete list of selections can
be set using either the numeric keypad or the wheel. List selections
typically include a numeric index followed by a right parenthesis,
LDC500 Series Laser Diode Controllers
