Related Manuals for RTC AP21 Series
Summary of Contents for RTC AP21 Series
- Page 1 AP21 Series Time Switch Operation/Service Manual (use this manual for Ver 3.02 and higher) “Helping Kids Get To School Since 1987” RTC Manufacturing, Inc. 1016 Enterprise Place * Arlington, TX 76001 www.rtc-traffic.com (817) 860-1217...
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Page 2: Table Of Contents
AP21 SERIES TIME SWITCH OPERATION/SERVICE MANUAL Table of Contents Introduction Specifications Programming Capabilities Electrical Power Fail Backup Accuracy Physical Wiring Description of Display and Keyboard Alpha-Numeric Display Keyboard Programming Instructions AP21 Cursor Auto Prompt Display Entering Data Quick Reference Program Guide... -
Page 3: Operation/Service Manual
AP21 SERIES OPERATOR’S MANUAL OPERATIONS/SERVICE MANUAL INTRODUCTION The AP21 is an single circuit, calendar programmable solid state time switch. It is used for switching electric circuits according to pre-set time and date program. The AP21 AUTO PROMPTING alpha-numeric display makes programming fast and simple. -
Page 4: Power Fail Backup
POWER FAIL BACKUP 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 - Synchronous with the AC power line and 4 PPM on DC power. -
Page 5: Description Of Display And Keyboard
DESCRIPTION OF DISPLAY AND KEYBOARD ALPHA-NUMERIC DISPLAY – Used for displaying time, day, date, output status and for displaying information during programming or reviewing stored programs. KEYBOARD – Many of the AP21 keys serve multiple functions. Those keys are clearly labeled with their functions printed adjacent to the key. -
Page 6: Programming Instructions
PROGRAMMING INSTRUCTIONS THE AP21 CURSOR - On many of the AP21 display screens you will see a flashing square character called the cursor. The cursor indicates that you may now enter or change the data at that position of the display. AUTO PROMPT DISPLAY - On a cold start with a discharged back-up capacitor, the AP21 will automatically prompt the operator through the programming procedure. -
Page 7: Quick Reference Program Guide
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 from the time display mode: TIME:Press the TIME (3) key, press ENTER (*), and enter the time as follows: AM/PM (enter) -
Page 8: Program Guide Key
EXIT (#) key to go back to normal time display. TRANSFER: Key in “78” on the AP21 you wish to transfer from, press ENTER (*). Connect the transfer cable (RTC Part # 91107), press ENTER (*). CLEAR: Press the clear (C) key, press ENTER (*). -
Page 9: Date
Press the ENTER (*) key · · Press the ENTER (*) key if the hour displayed is correct or, key in the correct hour then press the ENTER (*) key, the cursor will advance to the minute position · Press the ENTER (*) key if the minute displayed is correct or, key in the correct minute then press the ENTER (*) key, the cursor will advance to the AM/PM position ·... -
Page 10: Basic Program Steps
Procedure for entering or changing the BASIC program steps: Start from the time display mode · Press the BASIC (B) key · · Press the ENTER (*) key Key in specific program step number to be changed, · then press the ENTER (*) key ·... -
Page 11: Sleep Mode
in the correct day then press the ENTER (*) key, the cursor will advance to the year position Press the ENTER (*) key if the year displayed is correct or, key · in the correct year then press the ENTER (*) key, the display will advance to the END date (MM-DD-YY) Press the ENTER (*) key if the month displayed is correct or, ·... -
Page 12: Manual Operation
RTC Manufacturing, Inc. hereby warrants that, provided the time switch was properly installed, operated and maintained by the user, RTC will at its option, either replace or repair without charges any time switch found to be defective in materials and/or workmanship for two (2) years from the date of shipment. -
Page 13: Theory Of Operation
Arlington, TX 76001 If the customer/end user ships directly to RTC, shipping charges will be paid by RTC for repaired products returned to the customer/end user via regular surface freight. Overnight delivery must be requested in advance and will be billed to the customer/end user.
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