LiftMaster GH GH LOGIC VERSION 2 Manual - Page 17

STANDARD PROGRAMMING FEATURES CONT'D MAS (Maintenance Alert System) Press This Feature: An internal cycle counter will activate a flashing LED on the three- button control station when the preset number of cycles is reached. Setting this feature is optional. By default, this feature will never activate. Open To Get This Adds 5,000 cycles to Maintenance Alert System Activation Benefit: The consumer will be aware of when it is time for a scheduled main- tenance on the door or operator. Close Counter. Clears memory, sets Maintenance Alert To Program: 1. Close the door. 2. Set the dip switches to "set Maintenance Alert System" 3. Press "close" to zero out the counter. Stop System Activation Counter to 0 cycles. Adds 10,000 cycles to Maintenance Alert 4. Press "open" for every 5,000 cycles the operator should wait before System Activation flashing the LED. Timer. 5. Return the dip switches to your regular wiring type (C2, B2, etc.) and close the door. ON ON EXAMPLE: The door is being installed with 30 thousand cycle springs. To set MAINTENANCE the MAS for 30,000 cycles press close, then open 6 times. Return the dip ALERT switches to the desired wiring type. SYTSTEM 1 2 3 4 Special Notes about the MAS: A 5th wire must be run to the control station OFF to activate the MAS LED. When the operator is serviced after the MAS has started the LED flashing, repeat the setup procedure for the next service visit. To see how many cycles the operator has been through set the dip switches to "set MAS" and watch the MAS led. It will flash once for every 1000 cycles the operator has been used then pause and repeat. Every time the operator leaves the close limit is counted as one cycle. Maintenance Alert LED OPTIONAL PROGRAMMING FEATURES Mid Stop ON Feature: Door will open to an installer set height that is less than fully open. ON SET Benefit: The door will not open fully which will reduce unwanted airflow MIDSTOP through the doorway. The door will not cycle fully providing longer door and operator life. 1 2 3 4 OFF To Program: 1. Close the door. 2. Set dip switches to "set mid stop". 3. Press open (the door will begin moving) 4. Press stop when the desired mid stop height is reached. 5. Return the dip switches to the desired wiring type (C2,B2,etc.). The door will now stop at this height every time the door is opened. Notes: A momentary open command will open the door fully from the mid stop position. Photo eyes and other safety devices will not further open the door from the mid stop position. Timer To Close will work from the mid stop position. 17