BG790 Manual
Page 1
OWNER'S MANUAL MODELS BG770 & BG790 VEHICULAR BARRIER GATE OPERATOR MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
OWNER'S MANUAL MODELS BG770 & BG790 VEHICULAR BARRIER GATE OPERATOR MODELS BG770 AND BG790 ARE FOR VEHICULAR PASSAGE GATES ONLY AND ARE NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE
BG790 Manual
Page 2
... shock. Model BG770 17 Illustrated Parts - Model BG770 16 Repair Parts - Model BG790 19 MAINTENANCE Limited Bearing Lubrication 20 Grease Turnbuckle 20 WIRING DIAGRAMS Single Phase Wiring Diagram 21 Three Phase Wiring Diagram 22 Control Connection Diagram 23 WARRANTY POLICY AND SERVICE 24 IMPORTANT NOTES • BEFORE attempting to install, operate or maintain...
... shock. Model BG770 17 Illustrated Parts - Model BG770 16 Repair Parts - Model BG790 19 MAINTENANCE Limited Bearing Lubrication 20 Grease Turnbuckle 20 WIRING DIAGRAMS Single Phase Wiring Diagram 21 Three Phase Wiring Diagram 22 Control Connection Diagram 23 WARRANTY POLICY AND SERVICE 24 IMPORTANT NOTES • BEFORE attempting to install, operate or maintain...
BG790 Manual
Page 3
... for addition of access device open (N.O.) output contact (most access control equipment) and when required, a separate OPEN/CLOSE pushbutton (provided). OPERATION Prewired terminal strip accepts field connection of any access control device with key lock. Plug-in which case gate will remain open until CLOSE button... pregalvanized steel, powdercoat finish, top and side access covers with normally open button, or loop detector to 24' ARM SPEED MODEL BG770: Opens in 4 seconds MODEL BG790: Opens in 11 seconds LUBRICATION Permanently lubricated bearings in -oil-bath, 60:1 ARM TYPE MODEL...
... for addition of access device open (N.O.) output contact (most access control equipment) and when required, a separate OPEN/CLOSE pushbutton (provided). OPERATION Prewired terminal strip accepts field connection of any access control device with key lock. Plug-in which case gate will remain open until CLOSE button... pregalvanized steel, powdercoat finish, top and side access covers with normally open button, or loop detector to 24' ARM SPEED MODEL BG770: Opens in 4 seconds MODEL BG790: Opens in 11 seconds LUBRICATION Permanently lubricated bearings in -oil-bath, 60:1 ARM TYPE MODEL...
BG790 Manual
Page 4
... The pedestrian access opening shall be located at the bottom edge of a swing gate is not subject to operate the controls. b. For a gate operator utilizing a contact sensor such as the perimeter reachable by building structures, natural landscaping or similar obstruction. c. Specific... that transmits radio frequency (RF) signals to the installation of entrapment or obstruction exists, such as the bystander. f. The gate operator is intended for installation only on the bottom edge. b. Controls intended for Exposed Rollers • Photoelectric Sensors • Screen Mesh...
... The pedestrian access opening shall be located at the bottom edge of a swing gate is not subject to operate the controls. b. For a gate operator utilizing a contact sensor such as the perimeter reachable by building structures, natural landscaping or similar obstruction. c. Specific... that transmits radio frequency (RF) signals to the installation of entrapment or obstruction exists, such as the bystander. f. The gate operator is intended for installation only on the bottom edge. b. Controls intended for Exposed Rollers • Photoelectric Sensors • Screen Mesh...
BG790 Manual
Page 5
...freight carrier. 2. Locate the keys for possible damage during shipping. Select locations for control equipment and run properly or may result. OPERATOR PREPARATION 1. Do not install line power in the "AUTO" position. Damage claims MUST be added at all. Refer to gate...) or the run . OPTIONAL CONTROL EQUIPMENT: If loop detectors, radio controls, or other control equipment will be filed with the standard unit. MODEL BG770 PACKING LIST PART NUMBER DESCRIPTION QTY 02-102 Open/Close Push Button 1 07-8007 Gate Arm Hub 1 10-8007M Gate Bracket 1 80-G0187 Key...
...freight carrier. 2. Locate the keys for possible damage during shipping. Select locations for control equipment and run properly or may result. OPERATOR PREPARATION 1. Do not install line power in the "AUTO" position. Damage claims MUST be added at all. Refer to gate...) or the run . OPTIONAL CONTROL EQUIPMENT: If loop detectors, radio controls, or other control equipment will be filed with the standard unit. MODEL BG770 PACKING LIST PART NUMBER DESCRIPTION QTY 02-102 Open/Close Push Button 1 07-8007 Gate Arm Hub 1 10-8007M Gate Bracket 1 80-G0187 Key...
BG790 Manual
Page 6
... pad (40") from the height to ceiling is 8'3" (99"), calculation is provided as a template. INSTALLATION PAD MOUNTING Figure 2 20" 1. Secure operator with long lengths of 24'. 1. If a shorter arm is 8' for pad and conduit. Cut to reduce any warping common with four concrete anchors ...(not provided). 13" 22" ARM FABRICATION MODEL BG770 (SINGLE ARM) If you to desired length. Finish with an exterior grade paint and stripe with paint or adhesive backed tape as required by...
... pad (40") from the height to ceiling is 8'3" (99"), calculation is provided as a template. INSTALLATION PAD MOUNTING Figure 2 20" 1. Secure operator with long lengths of 24'. 1. If a shorter arm is 8' for pad and conduit. Cut to reduce any warping common with four concrete anchors ...(not provided). 13" 22" ARM FABRICATION MODEL BG770 (SINGLE ARM) If you to desired length. Finish with an exterior grade paint and stripe with paint or adhesive backed tape as required by...
BG790 Manual
Page 7
... BG790 barrier gates will mount the control station outdoors, replace the standard station supplied with the operator with every BG770 and BG790 barrier gate. Operator MUST be kept in SEVERE INJURY to persons and/or damage to the shelf housing shelf. The enclosure (shipped ... phase, frequency, and amperage to the wiring diagram for connection of the electrical enclosure. NOTE: The operator should be returned to the wiring diagram supplied inside the cabinet. MODEL BG770: Hang electrical enclosure on the two screws provided on a dedicated circuit and well protected. Refer to service...
... BG790 barrier gates will mount the control station outdoors, replace the standard station supplied with the operator with every BG770 and BG790 barrier gate. Operator MUST be kept in SEVERE INJURY to persons and/or damage to the shelf housing shelf. The enclosure (shipped ... phase, frequency, and amperage to the wiring diagram for connection of the electrical enclosure. NOTE: The operator should be returned to the wiring diagram supplied inside the cabinet. MODEL BG770: Hang electrical enclosure on the two screws provided on a dedicated circuit and well protected. Refer to service...
BG790 Manual
Page 12
... residential 3 wire receiver and made the power connection described above, you may connect to operator terminals R3, R1, and R6. MOUNTING LOCATION Mount or install the access control device ... according to the instructions below will need a separate power source. FACTORY SUPPLIED PLUG-IN DETECTORS LiftMaster P/N 71-416-7NH = 24V PLEASE NOTE: Previous models used 115V detectors (P/N 71-416-...door radio receiver has a three wire connection marked 1, 2, 3. If you are finished with model BG770 and BG790. NOTE: Most access control devices have this , connect the radio receiver power wires to...
... residential 3 wire receiver and made the power connection described above, you may connect to operator terminals R3, R1, and R6. MOUNTING LOCATION Mount or install the access control device ... according to the instructions below will need a separate power source. FACTORY SUPPLIED PLUG-IN DETECTORS LiftMaster P/N 71-416-7NH = 24V PLEASE NOTE: Previous models used 115V detectors (P/N 71-416-...door radio receiver has a three wire connection marked 1, 2, 3. If you are finished with model BG770 and BG790. NOTE: Most access control devices have this , connect the radio receiver power wires to...
BG790 Manual
Page 13
... If the overload trips, the gate could start when AUTO/MANUAL switch is too hot. CAUTION Keep hands clear of trouble-free operation. Flip the AUTO/MANUAL switch to trip, consult a qualified service company. ON/OFF POWER SWITCH The gate is located on the...start by itself when the overload is set back to the "OFF" position. MANUAL OPERATION ACCESS CONTROL "EMERGENCY" BYPASS To open the electrical cabinet. OPERATING INSTRUCTIONS ELECTRICAL OPERATION The BG770 and BG790 barrier gate operators are designed to provide years of moving parts. To shut power off, remove the...
... If the overload trips, the gate could start when AUTO/MANUAL switch is too hot. CAUTION Keep hands clear of trouble-free operation. Flip the AUTO/MANUAL switch to trip, consult a qualified service company. ON/OFF POWER SWITCH The gate is located on the...start by itself when the overload is set back to the "OFF" position. MANUAL OPERATION ACCESS CONTROL "EMERGENCY" BYPASS To open the electrical cabinet. OPERATING INSTRUCTIONS ELECTRICAL OPERATION The BG770 and BG790 barrier gate operators are designed to provide years of moving parts. To shut power off, remove the...
BG790 Manual
Page 14
...In some of the symptoms that has failed. Double check all accessories for the operator's control transformer. If voltage drops below the minimum with the operator running. the operator will not open or close . • The operator will not run , then stops or reverses. Some of these items even draw ..., then there could be an excessive current draw somewhere, or a wire AWG is too small. If an accessory item is try to the operator, always disconnect one accessory at the control transformer's primary terminals. Also, make sure that does not fall into the minimum/maximum area, then...
...In some of the symptoms that has failed. Double check all accessories for the operator's control transformer. If voltage drops below the minimum with the operator running. the operator will not open or close . • The operator will not run , then stops or reverses. Some of these items even draw ..., then there could be an excessive current draw somewhere, or a wire AWG is too small. If an accessory item is try to the operator, always disconnect one accessory at the control transformer's primary terminals. Also, make sure that does not fall into the minimum/maximum area, then...
BG790 Manual
Page 15
...one probe on 2. If the problem is either in either the full open side of the contactor. These limit switches tell the operator to be replaced. GENERAL REFERENCE INFORMATION THE GATE Double check the gate and its related hardware. TROUBLESHOOTING PRIMARY VOLTAGE CIRCUIT Use extreme caution...assistance, contact your local distributor or dealer. If the contactor is suspected to check is possible that could be in the controller (Model BG770 uses a manual reset overload). Repeat this circuit that the thermal overload inside the motor has overheated. NOTE: Some motors have the ...
...one probe on 2. If the problem is either in either the full open side of the contactor. These limit switches tell the operator to be replaced. GENERAL REFERENCE INFORMATION THE GATE Double check the gate and its related hardware. TROUBLESHOOTING PRIMARY VOLTAGE CIRCUIT Use extreme caution...assistance, contact your local distributor or dealer. If the contactor is suspected to check is possible that could be in the controller (Model BG770 uses a manual reset overload). Repeat this circuit that the thermal overload inside the motor has overheated. NOTE: Some motors have the ...
BG790 Manual
Page 18
ILLUSTRATED PARTS - MODEL BG790 12 34 33 2 7 14 2 33 40 15 3 42 40 16 8 37 32 9 6 24 1 22 31 26 32 27 48 41 4 14 13 43 44 5 14 30 36 10 17 18 20 19 21 34 12 28 29 44 25 45 39 23 38 45 44 35 46 14 47 11 49 Operator Assembly (Wishbone Arm not shown) 18
ILLUSTRATED PARTS - MODEL BG790 12 34 33 2 7 14 2 33 40 15 3 42 40 16 8 37 32 9 6 24 1 22 31 26 32 27 48 41 4 14 13 43 44 5 14 30 36 10 17 18 20 19 21 34 12 28 29 44 25 45 39 23 38 45 44 35 46 14 47 11 49 Operator Assembly (Wishbone Arm not shown) 18
BG790 Manual
Page 20
...Gate Caution Systems Drive Chain (see notes) Sprockets and Pulleys Gate Accessories Electrical Frame Bolts Total Unit TASK Check for proper operation Make sure they are present Check for excessive slack and lubricate Check for set screw tightness Inspect for wear or damage Check ... CHECK AT LEAST ONCE EVERY 1 MONTH X X X 6 MONTHS X X X X X 12 MONTHS X X X X X X X X X NOTES: • Inspection and service should be performed by a LiftMaster professional. 10.SAVE THESE INSTRUCTIONS. Failure to let the owner or manager know about any new items available or any safety items that could and...
...Gate Caution Systems Drive Chain (see notes) Sprockets and Pulleys Gate Accessories Electrical Frame Bolts Total Unit TASK Check for proper operation Make sure they are present Check for excessive slack and lubricate Check for set screw tightness Inspect for wear or damage Check ... CHECK AT LEAST ONCE EVERY 1 MONTH X X X 6 MONTHS X X X X X 12 MONTHS X X X X X X X X X NOTES: • Inspection and service should be performed by a LiftMaster professional. 10.SAVE THESE INSTRUCTIONS. Failure to let the owner or manager know about any new items available or any safety items that could and...
BG790 Manual
Page 21
... VOLTAGE 24V SECONDARY. 2) RELAY COIL VOLTAGE SAME AS OPERATOR LINE VOLTAGE. 3) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 4) BROWN WIRES INSIDE MOTOR NOT USED, SHOULD BE WIRE NUTTED. APPLICATIONS: CONTROL WIRING TYPE L2 MODEL TYPES: FIELD WIRING BG770, BG790 HORSEPOWER: VOLTAGE/PHASE: 1/2 115/230V, 60Hz, 1 PHASE ONLY DRAWING NUMBER: DATE: 08...
... VOLTAGE 24V SECONDARY. 2) RELAY COIL VOLTAGE SAME AS OPERATOR LINE VOLTAGE. 3) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 4) BROWN WIRES INSIDE MOTOR NOT USED, SHOULD BE WIRE NUTTED. APPLICATIONS: CONTROL WIRING TYPE L2 MODEL TYPES: FIELD WIRING BG770, BG790 HORSEPOWER: VOLTAGE/PHASE: 1/2 115/230V, 60Hz, 1 PHASE ONLY DRAWING NUMBER: DATE: 08...
BG790 Manual
Page 22
... HOLD OPEN LOOP J3-8 (R) J4-8 (OPTIONAL EQUIPMENT) NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 1 APPLICATIONS: CONTROL WIRING TYPE FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: BG770 (PG) BG790 (HBG) 1/2 208/230/480/575V DRAWING NUMBER: 01-G1015 DATE: 08...
... HOLD OPEN LOOP J3-8 (R) J4-8 (OPTIONAL EQUIPMENT) NOTES: 1) TRANSFORMER PRIMARY VOLTAGE SAME AS OPERATOR LINE VOLTAGE 24V SECONDARY 2) WE RECOMMEND USING A DEDICATED CIRCUIT BREAKER FOR EACH OPERATOR. 1 APPLICATIONS: CONTROL WIRING TYPE FIELD WIRING & ADJUSTMENTS MODEL TYPES: HORSEPOWER: VOLTAGE/PHASE: BG770 (PG) BG790 (HBG) 1/2 208/230/480/575V DRAWING NUMBER: 01-G1015 DATE: 08...
BG790 Manual
Page 23
... OR PROPERTY DAMAGE. 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. CONTROL CONNECTION DIAGRAM IT IS IMPORTANT TO READ ALL SAFETY RULES INCLUDED IN THE...
... OR PROPERTY DAMAGE. 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. CONTROL CONNECTION DIAGRAM IT IS IMPORTANT TO READ ALL SAFETY RULES INCLUDED IN THE...
BG790 Manual
Page 24
... OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION, CALL OUR TOLL FREE NUMBER 1-800-528-2806 www.liftmaster.com WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDERS TO: THE CHAMBERLAIN... OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT, OR REPLACEMENT OF BATTERIES. WARRANTY POLICY AND SERVICE LIFTMASTER®...
... OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION, CALL OUR TOLL FREE NUMBER 1-800-528-2806 www.liftmaster.com WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDERS TO: THE CHAMBERLAIN... OPERATION OR CARE (INCLUDING, BUT NOT LIMITED TO ABUSE, MISUSE, FAILURE TO PROVIDE REASONABLE AND NECESSARY MAINTENANCE, UNAUTHORIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT), LABOR CHARGES FOR REINSTALLING A REPAIRED OR REPLACED UNIT, OR REPLACEMENT OF BATTERIES. WARRANTY POLICY AND SERVICE LIFTMASTER®...