Table of ConTenTs Programming manual Introduction Specifications: Electrical/Physical Programming Features Power Fail Backup Accuracy Wiring AP21 Octal Base Mount Pin Display and Keyboard Descriptions Programming Instructions Programming Sequence Display and Special Key Codes Time Switch Keys QuiCK rEFErEnCE Programming guiDE Program/Edit Time-Of-Day...
The AP21 is an single circuit, calendar-programmable solid state time switch used for switching electric circuits according to pre-set time and date program. The AP21 is primarily designed for school zone and traffic control use where multiple daily/weekly programs are required on an annual basis. The relay output can be programmed for momentary operation for bell or buzzer operation in schools, churches, or industrial facilities.
Program and time keeping is maintained for 48 hours on a rechargeable capacitive backup system in the event of a power failure. The output and display are disabled during backup. The AP21 resumes normal operation when power is restored. aCCuraCY TimE KEEPing —...
KEYBoarD – Many of the AP21 keys serve multiple functions. Those keys are clearly labeled with their functions printed adjacent to the key. They cannot be used incorrectly as the display will AUTO PROMPT the user as to which key to press.
() key to advance the cursor. The AP21 will not allow you to enter an invalid number (i.e., the unit will not accept the number 13 for a month entry). The cursor will remain in its position until a valid entry is made, so keep pressing the keys until you see the correct number at the cursor and then press the EnTEr () key.
DD = day of the month 77 = Clear all data for reprogramming WnD = Sat and Sun only 78 = Program transfer between AP21 units YY = year 99 = Current software version HH = hour of the day...
AP21 Programming Manual AP21 QuICK REFERENCE PROGRAM GuIDE NOTE: The display of the AP21 will automatically blank after about 5 minutes of keyboard inactivity, simply press any key to reactivate the display. Start programming from the main DiSPlaY. Program THE TimE-oF-DaY —...
AP21 Programming Manual Program THE DaTE — From the main DiSPlaY, press D (DaTE) then EnTEr (). Enter the date as iillustrated at right: Note: = ENTER > To review or Change The Date From the Time Display mode: ·...
U n Note: The AP21 will default to the current U.S. standards: Note: = ENTER S (Spring), m = 03 (March), SUN = 2 (second Sunday) F (Spring), m = 11 (November), SUN = 1 (first Sunday) To change the month, simply key in the new month and press EnTEr ().
AP21 Programming Manual BaSiC Program STEPS — From the main DiSPlaY, press B (BaSiC) then EnTEr (). Enter the step number, press EnTEr (), and enter the program step information as illustrated below: D a y / s a M / P M o n / o f f ...
AP21 Programming Manual > Clearing all Basic Programming From the Time Display mode: · Press ClEar (C), then EnTEr () · Press BaSiC (B) to clear all of the Basic programming · Press EXiT (#) to escape to the Time Display mode annual Plan Programming —...
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AP21 Programming Manual > To review annual Plan Program Steps Starting from the Time Display mode: · Press annual (a) and then press EnTEr () · Press annual (a) to advance through the ANNUAL PLAN program steps · Press EXiT (#) to escape to the Time Display mode >...
Starting from the Time Display mode: on: To manually turn the AP21 RELAY ON, press 1, then EnTEr (), the display will return to the Time Display mode oFF: To manually turn the AP21 RELAY OFF, press 0, then EnTEr (), the display will return to the Time Display mode...
RTC will, at its option, either repair or replace the defective product. The customer at its cost shall deliver the defective product to RTC, and RTC will repair or replace the product and return it to the customer at RTC’s cost.
RTC Manufacturing, Inc. is committed to provide ongoing service support for time switches in or out of warranty. Please ship your repairs freight prepaid to the dealer in your area, or directly to: RTC Manufacturing, Inc.
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