Chamberlain SL 1000-XI - Manual (Page 12)

Rev C Doc 6001194 (01-20259) 9 of 36
E. POWER UP PROCEDURE
CAUTION
If gate is positioned at the ‘open’ limit, gate will automatically close when
power is switched on. Position gate either at the closed limit or at no limit
when preparing to switch power on. Always use extreme caution and
follow all warnings in the Safety Summary.
1. Turn on circuit breaker that provides power to gate operator.
2. Turn the power switch on. If gate is positioned at the open limit, it will automatically cycle to the
full closed position. If gate is positioned anywhere else, it will not move until commanded.
3. The seven-segment display above the keypad will sequentially spell out HELLO, then go blank.
4. NOTE: If the display does not follow this pattern, the controller board may not be working
correctly. Stop installation and call LiftMaster Technical Support for assistance.
F. USING MANUAL CONTROLS
Figure 13. Manual Controls, Location and Operation.
Use the manual controls on Manual Input Terminal TB2 (OPEN, CLOSE, and STOP, as shown in
Figure 13), to move the gate arm for installation and to cycle the gate when making the limit cam
adjustments.
• To open the gate: connect the OPEN terminal to the COMMON terminal.
• To close the gate: connect the CLOSE terminal to the COMMON terminal.
• To stop the gate: connect the STOP terminal to the COMMON terminal.
G. SETTING LIMIT CAMS
• The left limit cam is close to the gearbox. The right limit is close to the end of the shaft (see
Figure 14).
• Limit cams are adjusted by releasing the cam lock plate, rotating the cams, then reseating the
cam lock plate. When the adjustment is finished, be sure the cam lock plate is seated into the
notches of BOTH cams.
• Each cam rotation (360 o ) equals 11” of gate travel. Each cam notch equals 5/8” of gate travel.