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Perfect Harmony GENIII/e User's Manual
Another feature of the arrow keys is that they can be used to edit the values of parameters. To edit a parameter value,
the operator must first navigate through the menu structure (using the arrow keys) and locate the parameter to be
changed. With the parameter displayed on the LCD, the operator must press the [ENTER] key. This places the
selected parameter into edit mode. Once in edit mode, an underscore is displayed beneath the first (i.e., the most
significant) position of the parameter value. Changing the value of that position can be accomplished by pressing the
desired numeric key or by using the up and down arrow keys ([ ] and [ ]) to scroll (and wrap around) through the
numbers 0 through 9 for that position. When the up and down arrow keys are used, the operator must press the left
and right arrow keys ([ ] and [ ]) to move to the next (or previous) position in the number to be edited (unlike
using the number keys, which automatically shifts the underscore to the next digit in the number). The operator must
press the [ENTER] key to accept the new value or press the [SHIFT] + [ENTER] (i.e., [CANCEL]) to abort the
change.
A feature unique to the left arrow key (with the [SHIFT] key) is its ability to cancel the current security mode and
return to level 0. An operator can increase the security access level (by entering the appropriate security codes), but
cannot lower the security access level using the standard "Change Security Code" option of the Main menu. If an
experienced user enters level 7 (or any other security level), then wishes to return to level 0 when he is finished (for
security reasons), he may reset the drive by toggling power to the drive or using the [SHIFT] + [ ] sequence three
times from the main display (i.e., [SHIFT] + [ ] + [SHIFT] + [ ] + [SHIFT] + [ ]). The latter method is a
convenient way to reset the security level to 0 without interrupting the operation of the drive. When the security level
is reset, the display shows a "Security Level Cleared" message. Refer to Figure 3-7.
Figure 3-7: Security Level Cleared Message on the Perfect Harmony Display
Note:
* Security will return automatically to level 0 after 15 minutes of inactivity.
** The [SHIFT] + [ ] + [SHIFT] + [ ] + [SHIFT] + [ ] key sequence is valid only when performed
from the default meter.
The right arrow key [ ] is also used in conjunction with the [SHIFT] key to provide a menu, parameter, or pick list
access feature. The operator can gain access to all security-approved menus parameters or pick lists. Accessing items
in this manner requires that the operator know the ID number associated with the target item. This ID number can be
a one, two, three, or four-digit number. To access an item using its ID number, press the [SHIFT] key followed by the
right arrow key [ ]. The display prompts the operator for the desired ID number. Using the numeric keys on the
keypad, the operator enters the desired ID number, then presses the [ENTER] key. If the number was a valid ID
number and the current security level permits access to that item, then the desired item will be displayed. Refer to
Figure 3-4. Some common arrow key sequences are listed in Table 3-3.
A1A19000405A: Version 1.3
The Keypad and Display Interface
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