LiftMaster BG770 BG790 Manual - Page 23
Control Connection Diagram
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CONTROL CONNECTION DIAGRAM IT IS IMPORTANT TO READ ALL SAFETY RULES INCLUDED IN THE INSTALLATION MANUAL BEFORE BEGINNING INSTALLATION. FAILURE TO COMPLY WITH THE SAFETY INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE. CONTROL WIRING LINE VOLTAGE SUPPLY OPEN BUTTON OR OTHER OPEN CONTROL SEE NOTE #1 SENSING EDGE CLOSE BUTTON SEE NOTE #2 ELECTRICAL CABINET MANUAL OPEN SEE NOTE #2 WARNING 115V (SEE NOTE #5) ACCESSORIES (0.2A MAX) OPEN LOOP HOLD OPEN LOOP LOOP WIRE CONNECTIONS FOR FACTORY SUPPLIED (PLUG-IN) DETECTORS ONLY ON OFF SWITCH (BK) 115V (W) OUTLET SEE NOTE #3 (GN) 1 PHASE INCOMING LINE (SEE NOTE #5) (W) SWITCH ON (BK) (R) OFF (GN) 3 PHASE INCOMING LINE (SEE NOTE #5) LOOP DETECTORS BY OTHERS CONNECTIONS FOR LOOP DETECTORS NOT SUPPLIED BY THE FACTORY RADIO CONTROL CONNECTIONS FOR STANDARD 3-WIRE 24 VAC RADIO CONTROL PRESENCE CONTACT OF LOOP TO OPEN PRESENCE CONTACT OF LOOP TO HOLD OPEN LOOP WIRES AND POWER FOR LOOP DETECTORS SHOULD BE DIRECTLY WIRED TO DETECTOR ITSELF. REFER TO INSTRUCTIONS ACCOMPANYING DETECTOR. RADIO CONTROL WILL OPEN GATE AND REVERSE IF CLOSING. IT WILL NOT STOP OR CLOSE THE GATE. NOTES: 1) REMOVE THIS JUMPER TO CAUSE GATE ARM TO CLOSE IMMEDIATELY WHENEVER IT IS OPENED, UNLESS A VEHICLE IS ON THE HOLD OPEN LOOP. IF THIS JUMPER IS NOT REMOVED, ARM WILL REMAIN OPEN UNTIL A VEHICLE ENTERS AND EXITS THE HOLD OPEN LOOP. 2) ADD JUMPER FROM TERMINAL #8 TO #9 WHENEVER CLOSE BUTTON IS USED. DO NOT USE WITH HOLD OPEN LOOP. 3) 115V UTILITY OUTLET (4 AMP MAX.) PROVIDED ON 115V MODELS ONLY. 4) SEE REVERSE SIDE FOR INTERNAL OPERATOR WIRING. 5) DO NOT CONNECT INPUT POWER LINES TO L1 & L2 TERMINALS. POWER LINES MUST BE CONNECTED TO THE POWER SWITCH. 23