LiftMaster GH GT- Logic 4 Installation Manual - Page 32

MAINTENANCE ALERT SYSTEM (MAS) Feature: An internal cycle counter will activate a flashing LED on the 3-button control station when the preset number of cycles or months has elapsed (whichever occurs first). Setting this feature is optional. By default this feature will never activate. Logic 4 operators incorporate a self diagnostic feature built into the MAS LED. In addition to indicating when routine maintenance is due, the MAS LED can be used to troubleshoot some problems with the operator. Benefit: The Maintenance Alert System (MAS) assists the installing dealer in setting up a routine maintenance program. Once programmed, the MAS notifies the end user (with a flashing LED on the 3-button station) when a preset number of cycles/ months has elapsed and scheduled maintenance is due. To Program: 1. Close the door. 2. Turn the selector dial to PROGRAM. 3. Press and release the MAS SET button. 4. Press the STOP button once to clear the MAS memory. 5. Press the OPEN button once for every 5,000 cycles increments. Press the CLOSE button once for every 3 month increments. 6. Press and release the MAS button to complete the programming. The on board LED will flash back the programmed settings. The OPEN LED will flash once for every 5,000 cycles. The CLOSE LED will flash once for every 3 months. 7. Turn the selector dial back to the desired wiring type. NOTE: If MAS LED flashes 2 or more flashes in a row followed by a pause, an operator error occurred. Turn to page 35 to diagnose problem. Example: A door is installed with 30,000 cycle springs and has an annual service contract. To set the MAS, turn selector dial to PROGRAM, press MAS button, press the STOP button to clear the memory and then press the OPEN button 6 times (30,000 cycles) and CLOSE 4 times (12 months). Press the MAS again to complete the programming. Turn the selector dial back to desired wiring type. Special Notes about MAS: A 5th wire must be run to the control station to activate the MAS LED. The MAS LED on the logic board is always enabled. When the operator is serviced after the MAS LED has started to flash, repeat the setup procedure to program in the number or cycles desired until the next service visit OR press and hold the MAS button for 5 seconds in the PROGRAM mode to reset the MAS with its current programmed value. To disable the MAS, follow the programming procedure above and press the STOP button to reset the counter to zero. Every time the operator leaves the close limit is counted as one cycle. To view how many cycles are programmed into the MAS, set the selector dial to DIAGNOSTIC and press the MAS button. The OPEN button LED will flash once for every 5,000 cycle increment programmed and the CLOSE button LED will flash once for every 3 month increment programmed. To view how many cycles have elapsed since the last time the MAS was programmed, set the selector dial to DIAGNOSTIC and press the MAS button. Press the OPEN button; the OPEN LED will flash once for every 5,000 cycles that has elapsed. Press the CLOSE button; the CLOSE LED will flash once for every (3) months that has elapsed. Press the MAS button to exit. Turn the selector dial back to desired wiring type. SELECTOR DIAL T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG Operation will vary depending on wiring type T E2 D1 C2 B2 TS FSTS DIAG OPTN PROG 3-BUTTON STATION OPEN Maintenance Alert LED CLOSE STOP Press This OPEN CLOSE STOP To Get This Adds 5,000 cycles to Maintenance Alert System Activation Counter. Adds 3 Months to Maintenance Alert System Activation Timer. Clears memory, sets Maintenance Alert System Activation Counter to 0 cycles and 0 months. PROGRAMMING 32 Programming-Maintenance Alert System (MAS)