LiftMaster SW420 SW420 GL BOARD Manual - Page 34

CONTROL CONNECTION DIAGRAMS J1 TERMINAL BLOCK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Field Wiring Terminal Blocks R1 R2 R3 R4 3 5 5 8 9 10 11 12 24 Vac GL Board NOTE: SEE WIRING DIAGRAMS SHIPPED WITH KIT FOR ADDITIONAL INFORMATION. SEE OWNERS MANUAL FOR WIRING DISTANCES AND WIRE GAUGE INFORMATION. WARNING: All controls that are to be used to operate the gate system, MUST be installed where the user cannot come into contact with the gate while operating the controls. Also, always install the controls where the user has full view of gate operation. * All inputs are normally open and momentary, except the stop (N.C.). The following instructions are based upon UL325, and include recommendations for significant increase in safety. * We strongly recommend that you follow the UL guidelines presented throughout the manual. Installation device instructions - always follow the instructions provided by the manufacturer when installing and adjusting any control device. If these instructions are contrary to the advice given here, call for assistance. FREQ FREQ SOFT OPEN INPUT (N.O.) 1 2 3 5 6 7 8 9 0 # HARD OPEN CONTROL INPUT (N.O.) OPEN CLOSE STOP HARD CLOSE CONTROL INPUT (N.O.) OPEN CLOSE STOP SHADOW LOOP INPUT (N.O.) STOP/RESET CONTROL INPUT (N.C.) OPEN CLOSE STOP INTERRUPT (SAFETY) LOOP INPUT (N.O.) OBSTRUCTION OPEN EDGE/PHOTO EYE INPUT (N.O.) OBSTRUCTION CLOSE EDGE/PHOTO EYE INPUT (N.O.) RESIDENTIAL RADIO (SINGLE BUTTON) INPUT (N.O.) SW420 Operator 34