Installation Of The Limit Switch; Connecting Of The Control Board - LockMaster SFG 18H User Manual

Important:
* Check that the rack teeth must engage the gear teeth throughout their full thickness. If not, adjust the
position of the opener or/and place a few shims between the rack and gate.
4. Manually slide the gate leaf to ensure the rack is proper on the gear of opener, weld the second nut.
5. Repeat same steps of first rack section to install the rest rack sections until proper length is reached.
6. Cut away any excess of the rack (Note: rack length must be longer than actual travel of the gate to
accommodate limit switch brackets on each gate side.)
7. Thoroughly fasten the four nuts as well as spring washers onto expansion bolt tightly, enabling the opener
is firmly secured on the concrete pad during the whole gate travel.
Installation of the magnets for the Limit Switches
Before install limit switch, make sure the gate opener is put in manual operation. (the clutch connected with
gear shaft is disengaged) and the mains power supply is disconnected.
Position the two limit stop brackets approximately on the rack and move the gate by hand to fix them in
place.
Fit magnets bracket
Push the gate fully closed by hand. Locate and install the magnet bracket so that the opener will stop at the
desired close position when the close limit switch approaches it.
Push the gate fully open by hand. Locate and install the magnet bracket so that the opener will stop at the
desired open position when the open limit switch approaches it.
The higher magnet bracket must be installed at left side and lower magnet bracket must be installed
at right side from the view inside of property. Finally adjust the magnet to the proper position by moving
the gate with the motor. The magnet should be 39 - 59 "away from the magnetic limit switch. If it is too far
away, the switch will fail to work. The distance between the magnet and the opener should be 1/2" (12mm)
with the opener cover on. Adjust the position of the magnet until the positions of the opening and closing
meet the requirement.
Important Note: Please note the two magnet brackets (fixed plate) are different: one is higher and ano the
other is lower.

Connecting of the control board

Warning： Before making any electrical wire connection or/and setting the control board, make sure
that the power switch is OFF.
1. Motor
The BLACK wire of the motor should be connected into the "6" terminal.
The RED wire of the motor should be connected into the "7" terminal.
The YELLOW wire of the motor should be connected into the "8" terminal.
2. Start Capacitor
One pin of the start capacitor should be wired to the "7" terminal, another to "8" terminal.
3. Limit Switches
The RED wire of the limit switches should be connected into the "9" terminal.
The BLACK wire of the limit switches should be connected into the "10" terminal.
The YELLOW wire of the limit switches should be connected into the "11" terminal.
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