FORM
5. ENTRY KEYS
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29023A
5.1GENERAL
The Entry keys allow the user to change numerical values programmed in as chiller setpoints, cutouts, clock, etc.
5.2NUMERICAL KEYPAD
The Numerical keypad provides all keys necessary to program numerical values into the Micro Panel.
The “*” key is used to designate holidays when program- ming special start/stop times for designated holidays in the SET SCHEDULE/HOLIDAY program mode.
The
5.3ENTER KEY
The Enter key must be pushed after any change is made to setpoints, cutouts, or system clock. Pressing this key tells the micro to accept new values into memory. If this is not done, the new values entered will be lost and the original values will be returned.
The Enter key is also used to scroll through available data when using the Program or Set Schedule/Holiday keys.
5.4CANCEL KEY
When the Cancel key is pressed, the cursor will always return to the first character to be programmed in the display message. This allows the operator to begin re- programming, if an error is made. When the Cancel key is pressed, the values already keyed in will be erased and the original or internally programmed default values will appear. In other instances the display will remain the same and the only reaction will be the cursor returning to the first character.
5.5KEYS
The keys allow the user to scroll through data under the OPER DATA and HISTORY Key and to select the correct day of the week and the correct month when programming the micro with the correct time and date. The key also operates as a toggle AM/PM key if the cursor is over “AM” or “PM” on the display. For ex- ample, pressing the key when the cursor is on “PM” changes it to “AM.”
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