Dawn CONTROL-1500A Manual page 11

CONTROL-1500A Single Axis Antenna Controller
An examination of the keyboard in figure 2.2 reveals that many of the keys have two or more
labels. The function of each key is determined by the current operational mode of the
controller. The various modes are discussed in the following section.
MODE
Toggling this key allows the user to set the desired mode of the controller. There are
two mode groups – operational and programming. See section 2.2 – Changing Modes
with the Mode Key. The MODE key is always active.
SCROLL UP/SCROLL DOWN
These keys are used to scroll up or down through a list of items.
YES/NO
These keys are used to supply an answer to a yes or no question.
ENTER
This key is used to select an entry from a list, terminate a prompt for some action by the
user, or to complete the entry of numeric data.
0-9/DECIMAL POINT (with the stop key)/BKSP/+/-
These keys are used for numeric entry. The BKSP key causes the cursor to move one
column to the left writing over the character which was there. During the entry of
numeric data, if the cursor is in the first position of the data entry field, hitting the +/- key
will toggle the sign of the numeric input.
SPEED
DAWNco • 3340 S. Lapeer Rd • Orion, MI 48359-1320 • Ph (248) 391-9200 • Fax (248) 391-9207 • sales@DAWNco.com
Figure 2.2 CONTROL-1500 Keypad
Chapter 2 Basic Function Description 4