16
OM 200MICRO
Increment
(+)
When changing the value of a menu item entry, pressing ''INCR. +" shifts the selected menu item to
the next higher value or next available selection.
Decrement
(-)
When changing the value of a menu item entry, pressing "DECR.-" shifts the selected menu item to
the next lower value or previous available selection.
Enter
(=)
Once a change has been made to a desired value, pressing "ENTER =" locks in the new value.
Help / Clear
Pressing "ALARMS" followed by "CLEAR" clears the current fault. Also, when a change is made to
a menu item, pressing "CLEAR" returns the display to the original value as long as "ENTER" has not
yet been pressed.
Note
: The cause of a fault should always be determined and corrected before
clearing the fault through the keypad.
Keypad Password
When changing any menu item entry (+ or- key), the user is prompted to enter a valid password. The
change will not be allowed until the correct password is entered. The password for centrifugal units is
always four successive presses of the "Enter" key.
Once this has been done, the user can make changes to menu item entries. After entering the correct
password, the controller will allow a 5 minute time period during which the operator may make any
necessary setpoint adjustments. Any keypad activity will reset the timer for the full 5 minutes so the
password only needs to be entered once per session. After 5 minutes of inactivity, the password
access time will expire providing protection against unauthorized users.
Quick Access Group
The quick access keys provide a fast shortcut directly into the most frequently used MicroTech
menus. For example, pressing the "WATER SET POINTS" key moves you directly to menu #12
without having to step through intermediate menus via the "PREVIOUS" and "NEXT" keys.
Figure 14, Quick Access Group
Display Format
The information stored in the MicroTech controller tree structure can be viewed directly on the
control panel's 4 line by 40 character display. The currently selected menu is shown on the top line
along with the current date and time. Up to six menu items may be shown on the lower three lines of
the display. Alarm menus may have an additional field on line 1.
Either English or Metric units of measure may be displayed by installing the appropriate controller
software.
Water
Set-
points
Motor
Data
Reports
Oil
Temps
Refrig.
Temps
Press's
Oil
Temps