LiftMaster T Manual Del Usuario página 11

MAXIMUM RUN TIMER (MRT)
The operator can learn the time it takes to open or close the door
plus and an additional 10 seconds. If the operator does not meet
its open or close limit within the set time, it will stop, limiting
damage to the door and operator.
To Program:
NOTE: The default setting for the MRT is 90 seconds. In the event
the application requires the MRT be manually learned for a longer
duration follow steps below.
1. Start with the door in the closed position.
2. Set the selector dial to PROG.
3. Press and release the MRT button on logic control board.
4. Press the OPEN button and wait for the door to reach the full
open limit.
5. Once the door has reached the open position, programming is
complete.
6. Turn dial to desired wiring type.
NOTE: To reset MRT only, turn selector dial to program and press
and hold the MRT button until the MAS led flashes rapidly.
MAINTENANCE
LIFE OF OPERATOR FEATURE (ODOMETER/CYCLE COUNTER)
The operator is equipped with an odometer to show how many
months and cycles the operator has performed from the time it as
installed. This feature can help determine how long the operator
has been in service.
1. Start with the door in the closed position.
2. Turn the SELECTOR DIAL to DIAG (diagnostic mode).
3. Press and release the MAS button on the logic control board.
4. Press and release the MRT button on the logic control board.
5. The open and close lights will flash. OPEN for every 5,000
cycles and CLOSE for every 3 months.
6. Return the SELECTOR DIAL to the desired wiring type.
NOTE: If the operator has not reached 5,000 cycles or 3 months,
there will be no indications.
To avoid SERIOUS personal INJURY or DEATH:
• Disconnect electric power BEFORE performing ANY
adjustments or maintenance.
• ALL maintenance MUST be performed by a trained door
systems technician.
11
Set to PROG